1981 Honda cb900c charging and cylinder problems

classic Classic list List threaded Threaded
2 messages Options
Reply | Threaded
Open this post in threaded view

1981 Honda cb900c charging and cylinder problems

Finley M
Im having some difficulty with fixing up my bike. Honda cb900c. when i first got the bike there was no alternator on it so i bought and installed a new alternator and stator coil along with new alternator brushes. still not charging. rectifier looks new and so does battery although now that its been on and off charging so long im not sure i did get a new battery just in case. i can jump start the bike and it will hold a solid 11v on the battery....once ive got it running the left most cylinder on the engine block feels cold to the touch when it should be warm or hot...the cylinder is getting spark to it and the plugs are brand new. curious if anyone had any suggestions as to where i should begin. im in a real bind right now and would appreciate some help. thanks!
Reply | Threaded
Open this post in threaded view

Re: 1981 Honda cb900c charging and cylinder problems

First, if you do not have it, you can download the factory service manual from the manuals thread here (it is the same as the DOHC CB750). That should give you all the testing procedures. Since the bike had been taken apart it is hard telling what could be wrong. There could be wires crossed/disconnected the reg/rec could be bad...
As for the cylinder being cold, it sounds like the pilot jet in the carb is dirty/plugged.
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."

1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)