Prince George Vintage Motorcycle Club
Technical Section => Honda Rebuild => Topic started by: Qball on April 21, 2014, 08:26:57 PM
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after many years of tinkering, I think the CB is almost road ready. I free'd up the brakes, new paint, new panels, complete rebuild of the engine, new seals and gaskets and a few bits tidied up. Now to find out if the bugger will run. Productive weekend continues.
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One of the club's young..er, associates? Sterling Hedburg is just having his SOHC CB750 parts tanked and detailed at Jeff Muller's place. He had Jeff bore a cylinder block out for an old-stock 836cc big-bore kit he found on eBay ( wow, noticably bigger) and they are collaborating on the headwork this week. Jeff would be an interesting person to work with on this project, as he both holds the CB750 in generally very low regard, whilst simultaneously having two or three of them jammed into crevices around his house that no dragon's horde of gold would ever buy from him... anyway, so Sterling's bike should be ready for the road before too much longer as well, if and when this endless winter ever yields to something like summer. Or spring, even.
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Managed to resize the photo. hopefully it works
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Got tons of parts, hopefully be up in Burns Lake within a month, let me know if you need anything.
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thanks. I think I am almost done her for now.....fingers crossed. she will be on the road this weekend.
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HELP!!!
Im losing my mind. I wash my hands of these stupid honda Kehin vacume pot pieces of crap!!!! I have been fighting with them for literally years. Does anyone know of someone that professionally rebuilds and sets them up? I am running out of time and just want this thing running without the bloody drama. I would prefer to use someone reccomended by the club but if not I have found a couple places in the states.
other than that...the bike flashes up nice and sounds awesome:)
see you guys soon
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If you go on the bcclassic site talk to 754, he's a cb guru. Lots of luck and hope to see you at O-Keefes.
Later, Bob
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Hoorayyyy!!!!!!!!! so a couple washers under the needle to raise the height and tape off the air filters to restrict flow and she is running! anyone have a stock air box for a 79 cb750? The pods have been a major part of the problem. I am just gonna go stock for this summer and then fart around next year. took her down my road and although not quite dialed yet, but cruises at 120km/hr ok. she is a little loud but \i am sure if I can find a stock air box, i can get her to screem along.
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Just raise your main jets 2 sizes-if they are say, 110s' jump to 130s. Fixed. CHEERS.
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One of the club's young..er, associates? Sterling Hedburg is just having his SOHC CB750 parts tanked and detailed at Jeff Muller's place. He had Jeff bore a cylinder block out for an old-stock 836cc big-bore kit he found on eBay ( wow, noticably bigger) and they are collaborating on the headwork this week. Jeff would be an interesting person to work with on this project, as he both holds the CB750 in generally very low regard, whilst simultaneously having two or three of them jammed into crevices around his house that no dragon's horde of gold would ever buy from him... anyway, so Sterling's bike should be ready for the road before too much longer as well, if and when this endless winter ever yields to something like summer. Or spring, even.
I guess one could say I am young..er than some. :P Very true that Jeff hates the sohc cb750's. He's shared with me nearly everything that Honda did 'wrong' with them. However, with respect to this 'dragon with a horde of gold', I did convince him to part with a used stock piston, cam, and cam towers/rockers combo for my spare cb motor. I also breathe fire on special occasions.
anyone have a stock air box for a 79 cb750? The pods have been a major part of the problem.
I have a stock airbox for a 77 cb750a, which is the sohc not the dohc, so unless you're willing to do a bit of modifying, it's probably not a very useful solution for you. Same goes for the stock airbox I have off a 78 kz650sr. But if you're interested anyhow, let me know.
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Just raise your main jets 2 sizes-if they are say, 110s' jump to 130s. Fixed. CHEERS.
so what to do if im sitting at 130s already? I ordered a bunch should be here yesterday, i will try spacing the needle more or will have to try to go less but if that doesn't work looks like i might not make ft st james.
truck steering is waiting parts so might be screwed. will update soon
Pissed off at stupid hondas (never owned one that wasnt a pain)
Q
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Just found this on a website so there is hope yet!
"The airbox has always taunted me and screamed "throw me away"...so I did!! And let me tell you I LOVE IT!!!
It all started with me rebuilding the carbs, I used the Randakk rebuild kit and it worked like a charm, everything in the kit fit perfectly. I highly recommend them to anyone!
I had read on the deuces wild site that 75/110s were the "magic" jets for running pods, so since I had the carbs apart I went ahead and ordered new ones and threw them in, along with the recommended 3 1/2 turns out on the pilot screws.
After getting the carbs squared away and hooked back up on the bike, I ordered a set of the K&N pods for my year model. Deuces wild also suggested taping each pod up 75% to create vacuum in place of the airbox. I wrapped them with black electrical tape until only 1/2" of the filter material was showing.
My next upgrade, not sure if it had anything to do with the pods but it definitely helped the bike, I installed CBR F2 coils and wires. And boy what a difference it made for the bike! The bike fires right up and has tons of power. They are fairly cheap on ebay and I would suggest the upgrade to anyone with a DOHC bike.
I took it out for a test ride today and it ran like a scolded dog!!!!!!!! Plenty of power and no noticeable flat spots...pure awesomeness!
Here are some pictures of the set up and the taped pods to help anyone out if they are thinking about doing this, I also made a custom battery box and mounted all electronic components under the tank to clean up the triangle a bit. I think it looks a lot better! If you have any questions just let know and Ill see if I cant point you in the right direction."
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as most of you are already aware my honda had major failure before fort st james. So ive tried fishing out the lost bolts, no avail. I now need to do a full engine teardown and rebuild. this will be a job for the winter, not right now. I then had a posting online for a 79 cb750 in running order for 300$. perfect i think, so I called the guy and drove to smithers to buy it. I arrived with mixed emotion to find out it is not a 79 dohc but instead it is a 76 sohc. not what i needed but another winter project. so I will not be running my 750 to vernon. and as i am always a day late and a dollar short. I am pulling the engine from my BSA for a quick seal job and clutch rebuild. Hoping to be able to have at least one bike to ride at Vernon. wish I were closer to all of you so I could place bribes of beer and fun to help me get something into running order.
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You want to keep that '76? If not, holler at me. I'd be interested.
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Im thinking im gonna keep it, but not sure yet. I will post here first if i decide to sell and will give you first rights
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Sounds good. Yeah, I'm mainly an sohc cb750 guy, so it's up my alley.
Cheers