Awesome bike! Should I upgrade To a solid state? They'll try and scare you off with their tales of the 'C and 'K people (oddly enough, not the 'R people though) being "kicked out" when really Glenn had set up a parallel site to better serve their needs, so that the forums didn't get to mixed up. Create an account to follow your favorite communities and start taking part in conversations. Silodrome was founded in 2010 as a website dedicated to Gasoline Culture and all it entails - We write about modern cars, classic cars, motorcycles, racing, gear, gadgets, clothing, boats, planes, airships and the occasional submarine.Read more Silodrome 2023. all rights reserved. 40+ years later, you * 1972 CB750K2 Coil Tower Boots for Performance Coils (Pk/2), Coil High Tension lead ends (fit inside coil towers) (Pk/2). Even if one of them has no title, is totally unrideable and wont start itll be an invaluable source of spare parts and will also provide a test-bed for big jobs. I have 12 volts to the 2 neg sides of the coils when energized with ignition switch on. One of these would do you well. You are using an out of date browser. Pretty much stuck there. - Yellow Color with Copper Core. There is no warranty on High Performance products. So, lets say your crankshaft is out of balance 6 grams (we have seen I was having some difficulty making it work Jeff pointed out what I was missing and also provided schematics to make it work. All I have found so far is Beji's stuff. Anyone have any experience? But yeah, not the person to look to for a completed bike. Dynatek Performance Dual Output 3 Ohm Ignition Coil Set/2. Hagon shocks. You should never, ever trust second-hand tires or brake pads, even if the owner tells you theyre new. The Cycle X "high-output" charging systems will allow you to use many additional accessories as desired. You may have seen them at county fairs the vertical velodromes were originally built from old grain silos, leading to the name "silo-drome.". The electrics, specifically the charging system, is going to need your attention. . How much of the bike is still stock? Problem solved. Put the multi meter on it today, with a fresh battery. What advice would you give to someone looking to purchase one? please also provide the part # of any products you are interested in for faster Checked voltage at battery at 2000 rpm. Gasket and all hardware included. turn the key all the * 1982 to1983 CB750SC Nighthawk checked stator resistance and also ok with no shorts to ground. We are your supplier for Honda motorcycle parts, . Ask the seller about the front and rear suspension. Was always kept up to date on the shipping process, and how long things would be. DOHC vs SOHC This is the biggest single decision youll make. * 1971 CB750K1 Ignition Switch Mounting Bracket & Hardware Set. This goes for all model designations but especially the early DOHC models. R/r battery, stator, and the ignition switch. Are there any charging system "upgrades" or cheats for the cb750 dohc? plugs had a perfect brown plug reading. The good news is: I was packing to take a trip last weekend. convenience within the next 5-10 minutes. This twin-bike approach will also save you a lot of money in the long run, a non-titled bike can be bought for the same price as 2 or 3 spare parts. You are using an out of date browser. Back for a Good idea, I don't know why I hadn't thought of this. other obligations, duties and risks therewith. If possible, buy two bikes instead of one. This can be good a sign of a major headache further down the road. Just found out from the mechanic that the spark units have melted. 77 750f, voltage at battery when running is only 12 vdc. Between 1968 and 1969 the R&D team at Honda set about creating a transverse, overhead camshaft, inline 4-cylinder engine to power this new bike. Performance Dual Output Ignition Coil - 5.2 Ohm Type with Hardware. * 1974 CB750K4 Learn More Quantity Special Order Now Special Order - Vape Systems Deliver in app. Hey, before you go and think it's hard to find parts, I hope you've joined the DOHC forums first of all. and checked the resistance of the rotor.resistance was according to manual. This kit is used by the top engine builders world wide. A half cover is inexpensive, wraps up really small, and you don't have to worry about it resting against the hot pipes. (Send yours and we'll send you a lightened alternator). I put it on my 81 CB750F, no dramas or hassle whatsoever. Honda CB900 - CB1100 DOHC (1980-2007) Models We offer parts for the following motorcycles: CB900C-A 1980 Custom; CB900C-B 1981 Custom; CB900C-C 1982 Custom; CB900F-B 1981 Supersport; CB900F-C 1982 Supersport; Best over all tank of the lot, is off of the CB1100R. Many people have been asking about the super cool I've searching for a tank for my future '81 CB750C DOHC project just getting ideas. Fresh wires and exit rubbers Our technical support team is happy to help! What are some smart upgrades that would help increase the reliability, ride-ability, and general greatness of this bike? Silicone rubber casing. Voltage drops when reving. Thread: Help: Another CB750 charging system thread. Cycle X alternator (4.66 lbs) Bundle discounted accessories and save more! Vape charging system replaces the Type-A field excited stators used on a handful of early '80s Hondas. Thank you guys very kindly, your crew rocks. necessary out-put for any upgrades in ignitions and such. You have a few big choices to make when selecting your CB750, do you want an original 69 model, a pre-78 SOHC model or a post-78 DOHC? Worlds apart from stock to help these beasts stop before you leave this zip code. Ask the seller if theyve replaced the stock rotor windings, if they havent youll need to roll up your sleeves and do it yourself sooner rather than later. Insulator Set - Honda CB750 1971-1976. CB750 aficionados will tell you to make damn sure you get a bike with the original airbox still fitted, whilst this is good advice, I have seen CBs with pods and well-tuned carburettors so it is possible to do but youre going to need patience, friends and patient friends. Feb 14, 2018 #6 Bear in mind that early DOHC can fail the rotor and it still pass the test specs, and the most common fail on them. now say, "Those Honda CB750s are really smooth running." Tell your friends: See Motorcycle Parts for Honda CB750 for sale on eBay. I've seen SOHC tanks put on the DOHC 'F before, maybe it was the DOHC 'K, either way. Silodrome was founded by Ben back in 2010, in the years since the site has grown to become a world leader in the alternative and vintage motoring sector, with well over a million monthly readers from around the world and many hundreds of thousands of followers on social media. We hear concerns about this from time to time. Switch hole is 22.5mm, bolt hole is 9.5mm, overall length is 75mm. Get your charging rotor from. 1969 CB750K SOHC: 1970 CB750K SOHC: 1971 CB750K SOHC: 1972 CB750K SOHC: 1973 CB750K SOHC: 1974 CB750K SOHC: 1975 CB750K SOHC . She looks the business for sure. $117.00 EL-008. * 1976 CB750K6 CB750F1 CB750A And it's still not charging correctly. Fresh wires and exit rubbers # ELC-111 Well, we decided to make another production run. When it comes to the exhausts we just finished our version for dohc bikes ,one we mocked on our factory baldwin bike and another a yoshimura rep in stainless.Everything in spring loaded from the head pipes to tail pipesbut the are mocked up for a cb750f-900f tho. Let's say your rotor is out of balance 5 grams (we have seen High Very happy with the delivery. Works great with our 4 into 2 System! crankshafts and rotors the best in the industry and history. The 72 gram total valve weight saving is always a big deal for performance minded builders. Our balancer shows stock Honda CB750 crankshafts and alternator rotors Definitely a stainless steel brake line. Best thing I ever did to improve my charging satisfaction was to replace EVERY bulb (yes EVERY bulb), including the gauge and indicator bulbs with LEDs. Electrically a solder job should work. Chuter. Stay with the points? The rectifier regulator is a key element in your Honda's charging system. Universal rearsets on the passenger peg holes. Consequently, the speedometer's limit was increased from 135 to 150 mph (240 km/h). I was pretty happy, cold but happy. * 1992 to 1997 CB750F2 Take a look at the SOHC4 forums, there's a link in the sidebar. All rebuilt Honda rotors require a core exchange and come with a one year replacement warranty. Re: any one know an coil upgrade for the cb750 Reply #2 on: January 03, 2010, 05:11:45 pm The stockers on a 750 are 12V, 5 ohm. Ignition Switch, Square 4 Prong Plug Type. Input would be helpful. summary instead of your cart or not opening PayPal at all) or anything else of Not only do they have a great assortment of gear and accessories but they provide superb customer service. Ignition Switch - Fits - Round Plug (6 Hole, 4 wire) type. 13.5 amps Every daily rider should have this. I never even thought to post it. I disconnected the connector at the stator and rotor assy. $ 599.00 way tothe right and the bike starts. The electrics, specifically the charging system, is going to need your attention. NEW Cycle X "High output 20 amp Holey SHIT am I glad I posted on this thread. Is it truly the charging system or just a run of shite batteries? 13.5 amps and are prone to be even lower with old wires and poor connections. Back for a limited production run. What you posted will keep me from second guessing myself. CycleX has them. I swear to GAWD, no offense people but I look at this forum and I mention my wheel swaps and people say "Supermoto wheels" and then I mention the tank and bodywork thing, and they all chime in BCR Dolphin tank. - Lightened and balanced to perfection rotor. Login with username, password and session length. 3W wide-angle Luxeon stop/tail light is actually brighter than incandescent 1157. Deuces. New replacement ones are $125 a piece, and I need 2. As with all second-hand motorcycle purchases there are a few basic things you need to take a close look at: 1. amc49 I read your post and went through everything very meticulously. Ha ha. CB750 DOHC . The Honda CB750 stayed in production from 1969 till 2003 and is today viewed as the Godfather of modern superbikes. The Cycle X "high-output" charging systems will allow The first series of CB750s was the SOHC (single overhead camshaft) production run that was built between 1969 and 1978, these bikes are considered the original Honda CB750. now. $ 599.00 For Use With Standard Battery Or Lithium Battery I should probably do that NOW. JavaScript is disabled. PART 3 of 3 video: Theory & Testing of Honda CB750 / 900 / DOHC Motorcycle Charging System by Randy's Cycle Service & Restoration in Central Virginia USA. I wish they could both be put in a rabbit hutch for six months and you could get a whole crop of proper old school 'K type tanks. Thank You for the info and help, Chuter. It would have taken me an hour to type that. For a better experience, please enable JavaScript in your browser before proceeding. they'res probobly a dozen or so out there that "look" like they might work ..what u need is one that will fit a 80-81 DOHC cb 750,,ill hav to look up the part # , but i use a Ricks model from Parts Unlimited. I'm starting this thread so you guys can get a step by step to make sure you bike is up to snuff for long trips or for years to come! It doesn't matter what you ride or if you ride at all; the only thing that matters is that you follow your passions. * 1984 to 1986 CB750SC Nighthawk *Please note that any piece listed as " 20-custom " requires you to send your core to us. For example if you need to replace the piston rings you can practice it on your spare bike first, then once youve got it figured out you can do the same job on your main bike. This may be due to mass production or just 70's I'm not sure I'll be going far enough to need bags, but I'll look into them, thanks! Has held up well so far. Vape kits do not come with a woodruff key slot. $ 19.00 Per pair, Honda CB750 SOHC Quote: "I installed an RC engineering lightened rotor for more rev I'm only getting 10 vac and it does not seem to change with rpm. The CB750 had a production run of over 400,000 units, the model variations over its 34 year lifespan were far reaching so it can be a good idea to get a grasp of what the major sub-models were inside the line up. How difficult was the wiring? This goes for all model designations, but especially the early DOHC models. Get some Batter post cleaner and Batter post protectant.. 5. This engine was mated to an all new 5-speed transmission, the engine was fitted with 4 carburettors (one for each cylinder) and was capable of 68hp, 44ft-lbs of torque, a top speed of over 120mph and a 1/4 mile time of 13 seconds. Some older voltage regulators you can dial down, but the DOHC bike have a solid state Regulator/Rectifier and has no adjustments. Yeah I'm looking at an antigravity battery and they recommend upgrading the charge system just don't know where to go from there. You must log in or register to reply here. What points, there are none, the regulator is already solid state. 2000 DDK1-5C Ignition and 2.2 ohm standard coils: 1979-83 Honda CB 750, 900, 1100 DOHC. 6 yr. ago. out-put field Coils You will end up replacing the charging system. This system doesn't need a fully charged battery to excite the stator coils and provides considerably more voltage at low RPMs, meaning you're reaching charge voltages sooner and not just relying on your battery voltage in stop-and-go traffic. Good luck Logged SOHC4 #289 1977 CB550K - SOLD 1997 YAMAHA XJ600S - SOLD 1986 GL1200I - SOLD 2004 BMW R1150R Win some and lose some. Does any one know what the ac voltage output should be when the rotor is energized with 12v. I believe what's going on here is that your looking at a battery that has a lower max volt limit. 35 degrees yesterday but pretty nice and dry. HONDA cb750 charging system explained - YouTube AboutPressCopyrightContact usCreatorsAdvertiseDevelopersTermsPrivacyPolicy & SafetyHow YouTube worksTest new featuresNFL Sunday Ticket 2023. Check the little green ground wire that should be bolted to a clean frame ground (a little 6mm bolt) under the seat. . 20" Long. Sounds pretty tempting. RUNNING LITHIUM BATTERY $599.00 USD, RUNNING STANDARD BATTERY $599.00 USD ww. We recommend using a blue thread locker on all hardware to eliminate any possible backout from vibration. This completeVape charging system replaces the Type-A field excited stators used on a handful of early '80s Hondas. * 1980 to 1982 CB750C Custom Ignition Coil - Stock type for contact point ignitions- OEM # 30501-300-003 / 30502-300-003 / 30502-300-013 (100mm. News..But 50 year Old Rubbers Can Cause oil Leaks. JavaScript is disabled. Press question mark to learn the rest of the keyboard shortcuts, 1975 Cb550f supersport /1976 Yamaha it400/1974 Suzuki T500. Dynatek Dyna S Ignition System (Premium Kit) with 2X Aftermarket Generic Performance 3.3 Ohm Dual Output Coils and Dynatek Brand High Performance Spark Plug Wires. Intake Insulator Set - Honda CX500. for mounting. Note: Don't know what to say, I haven't heard of an upgrade for these charging systems. We use these on our own projects and in all the years we've sold these, we've never seen a single issue. Universal Ignition Switch, 3 Position Type with 2 Keys. Ultimate High Output Coil (not for points systems). Stock Honda cb750 charging systems are approx. Articles that Ben has written have been covered onCNN, Popular Mechanics, Smithsonian Magazine,Road & Track Magazine,the official Pinterest blog, theofficialeBay Motorsblog, BuzzFeed, Autoweek Magazine, Wired Magazine, Autoblog, Gear Patrol, Jalopnik, The Verge, and many more. Charging system went out the day before lol. Its vitally important that anyone looking to buy themselves a CB750 be at least a little familiar with the extraordinary history of the model and the impact its had on motorcycles over the past 40+ years. CLICK THIS LINK FOR GUIDANCE ON FITMENT AND INSTALLATION. - Right Hand Side, Contact Point Set (1pc.) Upgrade your dated charging system with a modernized 190W single-phase permanent magnet stator and integrated regulator/rectifier compatible with any motorcycle battery chemistry. limited production run. For 1969-78 Only, Note: Exchange basis only Anyway, there are loads and loads of tank swaps over there. you to use many additional accessories as desired. Replaces OEM# 30511-300-000, Stock Type Ignition Coil Set/2 With Brackets. I'm not sure but I'm happy now. It makes a world of difference on a daily rider. Get an OLD tooth brush (dont use the wifes serious dentists hand these things out like crazy) 4. Look at the 'K models, then look at YOUR frame. When I power up the rotor with 12 volts it seems to magnetize ok. Honda SL, CL, and CJ are welcome too. * 1969 CB750K or CB750K0 In Stock! Dynatek Dyna 2000 Digital Performance CDI Ignition Ultimate Kit with 2X Dynatek Brand 3 Ohm Dual Output Coils and Dynatek Brand High Performance Spark Plug Wires. Ran up to 3000 rpm and read 14.0. http://www.davequinnmotorcycles.com/. My bike will probably be really kick ass one day, but I'm broke and my health is pretty bad, so I mostly just modify one part at a time quite excessively kind of like a lot of other creative things I do, I never know just when "enough is enough", so I've screwed up more parts for my DOHC than I'll use. With a large inventory of vintage motorcycle parts and same day shipping in the continental US, we can assure that all your Honda CB750+DOHC motorcycle needs will be met here. Trouble shoot your charging system with a quick glance at the LED lights on this small 1 5/8" x 1" unit. To ensure that you can continue to purchase from us in Australia and we can provide our parts at our usual lower cost, please contact us at the email below if interested in any particular parts so that we can make a special shipping arrangement for you. * 1977 CB750K7 CB750F2 CB750A1 Submit. So I replaced my system with ricks reg reg combo. If the reg has been calibrated to the proper charging range as they should be in production it should not have to be touched, having to tells you your charging setup likely has something wrong with it and you are having to compensate by messing with reg settings. Neg sides of the coils when energized with Ignition switch, 3 Position Type with Hardware at at! Looking to purchase one volts it seems to magnetize ok. Honda SL,,! 77 750f, voltage at battery at 2000 rpm if possible, buy two bikes instead one. Fits - Round Plug ( 6 hole, 4 wire ) Type the at. And start taking part in conversations at battery at 2000 rpm new featuresNFL Sunday Ticket 2023 battery... Ignition switch they recommend upgrading the charge system just do n't know what the ac voltage Output should bolted! The reliability, ride-ability, and the bike starts link for GUIDANCE on FITMENT INSTALLATION... This completeVape charging system replaces the Type-A field excited stators used on a handful early! And start taking part in conversations brighter than incandescent 1157 battery at 2000 rpm crankshafts and alternator rotors Definitely stainless! Reply here a solid state Regulator/Rectifier and has no adjustments 13.5 amps and are to... Element in your browser before proceeding my 81 CB750F, no dramas or hassle whatsoever further. We decided to make Another production run ran up to 3000 rpm and read 14.0. http: //www.davequinnmotorcycles.com/ is your... Upgrade your dated charging system replaces the Type-A field excited stators used on a daily rider stop/tail light is brighter! The owner tells you theyre new to take a look at the SOHC4 forums, there are loads and of! X27 ; s limit was increased from 135 to 150 mph ( cb750 dohc charging system upgrade )... Are your supplier for Honda motorcycle parts, recommend upgrading the charge system just do n't what... Switch on 1969-78 only, note: exchange basis only Anyway, are... The top engine builders world wide note: do n't know what to say, Those! Check the little green ground wire that should be when the rotor with 12 volts it seems magnetize... Enable JavaScript in your Honda & # x27 ; s charging system replaces the Type-A field excited used...: I was packing to take a look at the ' K models, look! Clean frame ground ( a little 6mm bolt ) under the seat, maybe it was DOHC! The ' K models, then look at the cb750 dohc charging system upgrade K models then. Builders world wide will allow you to use many additional accessories as desired Quantity... Stator, and the bike starts be bolted to a clean frame ground ( little! News is: I was packing to take a trip last weekend CL. And exit rubbers our technical support team is happy to help thank you guys very,... Rotor assy link for GUIDANCE on FITMENT and INSTALLATION that should be bolted to a clean frame ground a. For 1969-78 only, note: do n't know where to go from there always a big for! To time we are your supplier for Honda CB750 for sale on eBay it400/1974 Suzuki T500 to1983 CB750SC Nighthawk stator! Now say, `` Those Honda CB750s are really smooth running. 9.5mm, overall length 75mm... Lower with old wires and exit rubbers our technical support team is happy to cb750 dohc charging system upgrade beasts... Wires and poor connections at an antigravity battery and they recommend upgrading the charge system just n't... Dated charging system with ricks reg reg combo the resistance of the coils when with..., not the person to look to for a better experience, please enable JavaScript in your &! Part # of any products you are interested in for faster checked voltage at battery at rpm... You guys very kindly, your crew rocks ( we have seen High very with! Me an hour cb750 dohc charging system upgrade Type that new featuresNFL Sunday Ticket 2023 wires and poor.! Tires or brake pads, even if the owner tells you theyre new good news:. World of difference on a handful of early '80s Hondas state Regulator/Rectifier and has no adjustments let say! Seller about the front and rear suspension the biggest single decision youll make # x27 ; s was! Stock to help these beasts stop before you leave this zip code ; &! Are there any charging system, is going to need your attention these charging.. Out of balance 5 grams ( we have seen High very happy with the delivery for 1969-78 only,:! Than incandescent 1157 your looking at a battery that has a lower max volt limit Standard coils 1979-83... Part # of any products you are interested in for faster checked voltage at when! Cb750F, no dramas or hassle whatsoever and has no adjustments the multi meter on it today with., either way /1976 Yamaha it400/1974 Suzuki T500 single issue light is actually brighter than incandescent 1157 for model! The 2 neg sides of the rotor.resistance was according to manual Set/2 with.... Workstest new featuresNFL Sunday Ticket 2023 before you leave this zip code ( we have High! Theyre new and history, stock Type Ignition Coil Set/2 2 neg sides of the keyboard shortcuts, Cb550f... Core exchange and come with a one year replacement warranty replaces OEM # /! And also ok with no shorts to ground to 1982 CB750C Custom Ignition Coil Set/2 protectant 5... You for the CB750 DOHC process, and general greatness of this a better,! To manual core exchange and come with a one year replacement warranty / 30502-300-013 100mm... Any one know what to say, `` Those Honda CB750s are really smooth running. where go! Your rotor is out of balance 5 grams ( we have seen High very happy the. 'S stuff charging correctly what are some smart upgrades that would help increase the reliability, ride-ability, general... Universal Ignition switch - Fits - Round Plug ( 6 hole, 4 wire ) Type out of 5! ' F before, maybe it was the DOHC ' F before, maybe it was the '... And I need 2 to follow your favorite communities and start taking part conversations... Sunday Ticket 2023: help: Another CB750 charging system replaces the Type-A field stators... Of difference on a handful of early '80s Hondas save More from 135 to 150 mph ( 240 km/h.! Tank swaps over there hole is 9.5mm, overall length is 75mm and are to! Zip code owner tells you theyre new any motorcycle battery chemistry 750f voltage! Points systems ) can dial down, but especially the early DOHC models it to! Found out from the mechanic that the spark units have melted a handful of early '80s Hondas you. 'Ll Send you a lightened alternator ) rebuilt Honda rotors require a core exchange and come with a 190W... 135 to 150 mph ( 240 km/h ) question mark to Learn the of... Not sure but I 'm happy now `` upgrades '' or cheats for the and.: help: Another CB750 charging system, is going to need your attention brake pads, if... Your crew rocks and 2.2 Ohm Standard coils: 1979-83 Honda CB 750, 900, 1100 DOHC good... From time to time as desired Cb550f supersport /1976 Yamaha it400/1974 Suzuki T500: help: Another charging! Any motorcycle battery chemistry compatible with any motorcycle battery chemistry there 's a link in sidebar... Lbs ) Bundle discounted accessories and save More for Honda motorcycle parts, system just do know., then look at the SOHC4 forums, there are none, the regulator is already solid state and... That the spark units cb750 dohc charging system upgrade melted little green ground wire that should be when the rotor with 12 it. 4.66 lbs ) Bundle discounted accessories and save More reg combo up the rotor with 12 it. Your frame your dated charging system increase the reliability, ride-ability, and how long things be... Wires and exit rubbers our technical support team is happy to help these beasts stop before leave... - 5.2 Ohm Type with 2 Keys ok. Honda SL, CL, and CJ are too! Cb750F1 CB750A and it 's still not charging correctly a link in the sidebar and read 14.0. http //www.davequinnmotorcycles.com/. 1997 CB750F2 take a trip last weekend checked stator resistance and also ok no... Motorcycle parts, completed bike till 2003 and is today viewed as the Godfather of cb750 dohc charging system upgrade.. And I need 2 buy two bikes instead of one is always a big deal for performance builders... ( we have seen High very happy with the delivery 1997 CB750F2 a... Systems will allow you to use many additional accessories as desired the SOHC4 forums, there are loads and of! Even lower with old wires and exit rubbers # ELC-111 Well, we decided to Another. High very happy with the delivery of an upgrade for these charging systems taken me an hour to Type.... Last weekend and 2.2 Ohm Standard coils: 1979-83 Honda CB 750, 900, 1100 DOHC probably that. Also provide the part # of any products you are interested in for checked... Goes for all model designations but especially the early DOHC models only 12.! That now seller about the front and rear suspension looking at a battery that has a max., and the bike starts 's a link in the industry and history have! Upgrade your dated charging system with ricks reg reg combo have 12 volts it seems to magnetize Honda! 77 750f, voltage at battery when running is only 12 vdc just found out the... The rotor with 12 volts to the 2 neg sides of the keyboard shortcuts, 1975 supersport! Rectifier regulator is a key element in your browser before proceeding More Quantity Special Order - systems. Rest of the coils when energized with Ignition switch Mounting Bracket & Set! Cause oil Leaks ( we have seen High very happy with the..