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Following on from my other posts, picked up a tidy and genuine 50-odd hours one owner 2015 150SX for the mrs to go moto on (quads not allowed on the track
). It comes with a top end kit spare which I’m going to fit and lots of jetting options with needles I don’t think I have… 
Is 50hrs ok or pushing it for one of these on a piston and are you still looking at a bottom end when required or every 3-4 pistons?
Manual says new crank and bottom end bearings at 80hrs…
it’s not been ridden hard and will be ridden less aggressively by the mrs (ordering a flywheel weight for it).
Any advice on jetting these things?
The jetting tables are good and it even has settings for sand use which the EXCs don’t have… will be some hard pack / sand use whilst she readjusts to two wheels. Richer is better I believe for longevity and rideability, are the MX setup needles more aggressive tapers? It’s a 38PWK same as my old 200/2… got some equivalent jets but not the needles I don’t think.
I know everyone loves a jetting thread and misses them…

Tidy wee bike, if she doesn’t line it, I’m keeping it.



Is 50hrs ok or pushing it for one of these on a piston and are you still looking at a bottom end when required or every 3-4 pistons?
Manual says new crank and bottom end bearings at 80hrs…

Any advice on jetting these things?
The jetting tables are good and it even has settings for sand use which the EXCs don’t have… will be some hard pack / sand use whilst she readjusts to two wheels. Richer is better I believe for longevity and rideability, are the MX setup needles more aggressive tapers? It’s a 38PWK same as my old 200/2… got some equivalent jets but not the needles I don’t think.
I know everyone loves a jetting thread and misses them…


Tidy wee bike, if she doesn’t line it, I’m keeping it.




