bore size equals ?

Yamaha Raptor 350 & Warrior Forum

Help Support Yamaha Raptor 350 & Warrior Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
i have no clue man haha my engine builder told me that mine is now a 366 with 85mm bore. but all the big bore kits are 366 with 85 mm piston
 
.7854x84x84x64.5=357444.96mm which equals 357cc

I bore cylinders at the shop and i get that same question every day.
Glad to help,but that is actually the fast easy conversion if you want to know in inches just convert or if you have a multicylinder machine just multiply the displacement per cylinder by the number of cylinders.

Oh yea .7854 is TT/4
 
Back
Top