Motorcycle Forum banner
1 - 5 of 5 Posts

·
Registered
Joined
·
37 Posts
Discussion Starter · #1 ·
Hello! My 800 has lost compression on both cylenders at the same time. It happend all the sudden and not over time. I was wondering if their is an easy way to see if the cams are turning over? Any help would be appreciated!
 

·
Super Moderator
Joined
·
13,713 Posts
In general......remove the "valve covers" and see what if anything is happening when the engine turns over.
Might be a broken timing chain.
 

·
Registered
Joined
·
37 Posts
Discussion Starter · #3 ·
Thank you for replying. I will remove both valve covers. Now both cylenders have very low compression at the same time. If both chains are not moving what would I look for next? Bad sprocket on the crank?
 

·
Super Moderator
Joined
·
13,713 Posts
If both chains are not moving what would I look for next? Bad sprocket on the crank?
Yes, something like that.
Is it possible that the cam timing for both cylinders is accomplished with only ONE timing chain loop ?
I really don't know but it certainly seems possible.
 

·
Registered
Joined
·
37 Posts
Discussion Starter · #5 ·
Yes, something like that.
Is it possible that the cam timing for both cylinders is accomplished with only ONE timing chain loop ?
I really don't know but it certainly seems possible.
It has one chain per cylender so I assume they both are on a duel sprocket on the crank. I'm going to look it up. I'll let you know, and thank you so much for your input.
 
1 - 5 of 5 Posts
Top