Posts
13
Joined
3/1/2018
Location
Marcellus, NY
US
Edited Date/Time
7/13/2018 8:47am
Im rebuilding the top end in my 2018 ktm 150sx after noticing pitting on the piston which some on here think was due to a coolant leak by the photos. Anyways ive got the new piston in and checked deck height with the nihlio concepts deck tool and the rear break side of the piston sits slightly lower compared to the shifter side. The jug is torqued to spec and tightened in a cross pattern. Should i be concerned with the uneven height?
Paw Paw
Is the gasket surface clean?
I’d check to make sure all the other surface like the top of the cases and the bottom side of the head are flat.
The Shop
Paw Paw
A lot.of rm250s had uneven case halfs, so if you didn't tighten the cylinder in the right order, it would air leak, but the squish was slightly off and the bike ran ok
Edit: Just saw you are measuring across the wrist pin. Weird!
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