SONICJK
Reminds me of...me No, I'm sure of it. I hate him
Alright guys,
First off this forum is awesome glad I found it..
I have a 73 cb350 that I picked up pretty cheap. It didnt run, so i did all the usual adjustments and still couldnt get it cranked (i didn't try that hard) I mostly got this bike as a toy and to learn about motorcycles and their engines (first bike).
So I began the process of tearing down the engine.
Ive got the whole top end off. I cant decide if i want to break into the bottom end or not...(opinions)
It turned over just fine, had (some) compression etc.
First question. I did a PB Blaster valve seat test.....
and 5 minutes later...
So it looks like I have a leaky exhaust valve.
So whats the consensus on what to do? I have seen some mention of a little lapping, and some say hell no. What do you guys suggest?
I have thoroughly cleaned the combustion chamber with a dremel and wire wheel and it looks good as new now (left the buildup on the valve faces for a little extra compression ;D .
So what do I do from here?
Second, I didn't do a full compression test, just did a thumb test and it felt pretty good, had a good strong kick to it.
I really don't want to have to bore it over, and the PO said it ran just fine before it died (electrical I think, had no spark when I got it) So should I replace the piston rings? How do I tell if they are still good?
Anything you guys recommend while i have this thing apart? Im going to paint the whole engine eventually. All new case bolts, all new gaskets, am I missing anything?
Thanks,
Justin
First off this forum is awesome glad I found it..
I have a 73 cb350 that I picked up pretty cheap. It didnt run, so i did all the usual adjustments and still couldnt get it cranked (i didn't try that hard) I mostly got this bike as a toy and to learn about motorcycles and their engines (first bike).
So I began the process of tearing down the engine.
Ive got the whole top end off. I cant decide if i want to break into the bottom end or not...(opinions)
It turned over just fine, had (some) compression etc.
First question. I did a PB Blaster valve seat test.....
and 5 minutes later...
So it looks like I have a leaky exhaust valve.
So whats the consensus on what to do? I have seen some mention of a little lapping, and some say hell no. What do you guys suggest?
I have thoroughly cleaned the combustion chamber with a dremel and wire wheel and it looks good as new now (left the buildup on the valve faces for a little extra compression ;D .
So what do I do from here?
Second, I didn't do a full compression test, just did a thumb test and it felt pretty good, had a good strong kick to it.
I really don't want to have to bore it over, and the PO said it ran just fine before it died (electrical I think, had no spark when I got it) So should I replace the piston rings? How do I tell if they are still good?
Anything you guys recommend while i have this thing apart? Im going to paint the whole engine eventually. All new case bolts, all new gaskets, am I missing anything?
Thanks,
Justin