I have a '92 FZR600 Yamaha and the compression doesn't work?

Question

The bike was taken to the shop and was said that it does not have any compression. How would this problem be fixed?

Answer 1

There are 2 different ways this can occur, valves burned, bent, or cam chain broken, or piston rings stuck/broken in the piston. This said, then there are a couple or more reasons each one can happen. Knowing the history of the bike, one can predict which it is. Neither is cheap to repair, so, it is best to go to a reputable shop for a professional appraisment of the problem, and price. Or if you desire to become mechanically apt, buy a manual on the bike, and have a go. Mind you, if you fail, and have to later take it to a shop, they may charge a higher fee to sort out what you did wrong, as well as what was wrong with the bike at the start.

I have many years experience in this area and am pleased to assist anyone who wants to learn. If you want to try it yourself, I will be happy to give assistance via E-mail, if you will tell me the history of the bike, number of miles, was it running when you got it, or did you buy it in this condition. If it was running, what were you doing when it quit, etc.

My E-mail - [e-mail]

Tomcotexas

Answer 2

With no compression, you are looking at needing some serious work. The reasons for this condition could be:
a - broken rings
b - bent or burnt valves
c- cracked head
d- cracked cylinder wall
e - blown head gasket
Any of these problems involve taking the engine apart.

Answer 3

the engine needs to be rebuilt