Hey guys just bought a 400 scrambler with a couple mods done. Bike has HPD Trail Pipe, HPD Silencer, HPD aggressive clutch kit, V-Force Reeds, Reed Spacers. The bike had the piston broke in half when I bought it, and I just got it all fixed. The mechanic bored the cylinder .040 to clean up any damaged and ported the cylinder.

First question is, mechanic wants to know factory squish clearance so he can mill the head a little, anyone know the factory squish for a 2000 400 scrambler.

Second question is, anyone know the suggested jetting for this bike with the HPD pipe on it. It has the stock 34 mm mikuni carb still on it.


Thirdly, what kind of injector oil do you guys reccommend. I have some Amsoil left from my snowmachine this winter and was thinking about using it.

thanks

kyle

 

humm,around 270 to 290 on the main to start with,k&n filter,maybe a rasie clip the needle shouldn't be a problem
to do in this case,,,air screw richen or pilot check.
the amsoil is very fat for those motor,i'll only suggest very normal synthetic oil,no power valve formula.
low ashes the most impotant,or mineral based blend.