TOO MUCH COMPRESSION - BRIGGS 21 HP INTEK TWIN OHC

[slomo]

Reported

On the old L-heads, a common over-compression problem turned out to be a build-up of carbon in the combustion chamber was the problem, it kicks up the compression ratio a bunch. Maybe it is the same here.

Some engine manuals state to pull the head/s and de-carbon the sucker out at 100 hour intervals. Course that is never done. Interferes with couch time.

slomo

 

[7394]

My Kawasaki engine manual states to do this, but @ 300 hours.

I've only got 144.7 hours on in 6.5 years.