09-12-2013, 05:14 PM #1RookiepwcGuest
1999 Yamaha 1200XL ltd Factory Compression when new?
What is the compression on a new factory engine for a 1999 1200xl ltd?
And how close should my reading be to this original number? 80%?
09-12-2013, 07:02 PM #2
- Join Date
- Dec 2007
- US of A
Compression was around 120psi new, when you check compression you want all cyl to be within 10% of each other. Also remember to disconnect the pv connector when you check compression.
09-12-2013, 10:48 PM #3RookiepwcGuest
How do you disconnect the pv. I am so confused on the pv and where it is and how it works.
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