I installed a 157.5 runs spot-on

 

mine ran good with a 170... but i looked at the plug and it was a little grey... check your plug just to be safe...
was that your first jet you tried?
every time ive jetted except that 1 i got it first try... i like it that way.. save some work... and saves you ALOT of work if you ride yamaha.. they seem to hide their carbs in odd places.. or will a ton of **** in the way.

 

You'll know soon enough if your valves are out of adjustment. Doest hurt to keep em perfect though.

 

yep... always good to keep em just right... but i dont feel it needs it right now...

 

I was told with our 4 strokes the pred that we dont really have to worry about the valve adjustment but I suppose it would'nt hurt to check them once a year

 

cool... where did you hear that.. your dealer?