my ultra motor is well used, nice scratches in the pistons and cylinders. dont really care to rebuild it as i have a good spare motor to swap in when this one quits running good as it does. anyway, a compression test revealed the center cylinder is 6 lbs lower than the sides. wondering if i should jet it one size lower there to make up for less output, or leave it rich to help it seal better? any opinions before i lean er out and see what happens?
jet different for lower compression?
- Thread starter sno*jet
- Start date
I have an opinion. Do not change the jetting if its where its suppose to be. 6 lbs is nothing worth worrying about.
Run it, it will probably last another 5 or 10 years !!!!!
Just my opinion.
Run it, it will probably last another 5 or 10 years !!!!!
Just my opinion.