no gears except first and neutral...

[nander]

Well I just got my 62 CB77 running nicely and I was hoping I wouldn't find myself posting a question so soon...but, here I am. Two steps forward, one step back. Haha.

I've put about 30-40 miles of real riding on her and I am encountering either clutch or transmission engagement issues. I'm hoping it's the former...

After riding several miles today, I found that I could only shift the bike up and down between first and neutral. Can't find any of the other gears -- it won't even click into gear -- just feels like mush. I tried adjusting the clutch, tightening it up as much as possible, but to no avail.

Two other things I noticed:
1). a slight whirring sound audible when the motor is running and I hold down the gear shifter. Goes away when I release my foot. Could have been there before, but I just noticed it now.
2). previously I have encountered an intermittent problem where the bike occasionally doesn't want to go into second. From first gear I wind up shifting it up into third and then I can shift it down to second.

I have new clutch discs and springs in there and it was working fine for a while.

Searched the other posts but didn't find anyone having this specific problem. Any advice?
Thanks,
nander

[LOUD MOUSE]

Pull the cover and see what ya see in there. ...........lm

Well I just got my 62 CB77 running nicely and I was hoping I wouldn't find myself posting a question so soon...but, here I am. Two steps forward, one step back. Haha.

I've put about 30-40 miles of real riding on her and I am encountering either clutch or transmission engagement issues. I'm hoping it's the former...

After riding several miles today, I found that I could only shift the bike up and down between first and neutral. Can't find any of the other gears -- it won't even click into gear -- just feels like mush. I tried adjusting the clutch, tightening it up as much as possible, but to no avail.

Two other things I noticed:
1). a slight whirring sound audible when the motor is running and I hold down the gear shifter. Goes away when I release my foot. Could have been there before, but I just noticed it now.
2). previously I have encountered an intermittent problem where the bike occasionally doesn't want to go into second. From first gear I wind up shifting it up into third and then I can shift it down to second.

I have new clutch discs and springs in there and it was working fine for a while.

Searched the other posts but didn't find anyone having this specific problem. Any advice?
Thanks,
nander

[nander]

Pulled the cover.
Not a pretty sight.

I'm surprised I was even able to use first and neutral! Tough little bike.

What do you think happened? Did the bolt work itself loose?

It appears I need to replace that rotten bolt and perhaps get a new shift drum stopper. Am I going to have to drop the motor to do this?

[LOUD MOUSE]

REPLACE THE BAD PARTS AND NOT TO WORRY ABOUT THE BUR ON THE CRANK NUT.
YOU WILL NEED TO PULL THE CLUTCH/CRANK NUT AND OTHER PARTS ON THE CRANK TO INSTALL THE DAMAGED SHIFT PARTS. ..............lm

Pulled the cover.
Not a pretty sight.

I'm surprised I was even able to use first and neutral! Tough little bike.

What do you think happened? Did the bolt work itself loose?

It appears I need to replace that rotten bolt and perhaps get a new shift drum stopper. Am I going to have to drop the motor to do this?

[nander]

Thanks for your help Loud Mouse.

It's a relief to hear that the repair won't require dropping the motor.
Ima take the clutch off today and see if there are any other broken bits in there.

nander

[britman]

nander,

I bought my last shift drum stopper from these guys. Very reasonable if I recall. Just FYI
http://www.civicdutyparts.com/index.asp

[davomoto]

I have the parts you need as well. PM me if interested.

davomoto