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Old 10-23-2011, 06:21 AM   #4
stinger5
Gone Wild
 
Join Date: Oct 2011
Posts: 168
Default Re: 1990 DS Carburetor Backfire

Quote:
Originally Posted by Dreamer View Post
I checked the compression and it was 82psi. I think I read here that 100 is minimum. I have not checked the valve clearance.
If the intake valve is burned, bent or partially open it will allow compression to spit back through the carb. 5 thou clearance on each valve.
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