Search Results for ‘big bore’

I have an '01 660r that I have completely apart currently, and would like to throw in whatever performance mods I can while I have it apart. I had a stock raptor before this, and this one is definitely faster than my old one. It has a stage 1 hot cam, stock carb, stock jets, stock bore 100mm...

I recently had my Raptor 700 engine rebuilt, 5mm Hotrods crank, stage 3 hot cam, 780cc piston and cylinder, HMF exhaust and HMF optimizer... i put the engine back in, and it fired up with no issue, while on a short test ride, the engine would hesitate or sputter when i was on the throttle...

I recently just got a 2002 RAPTOR 660 and it wasn't in the best condition. i just rebuilt the carbs and when i went to run it, it was running way to much. it has 11:1 wiseco piston bored to 100.5 mm. and i think the jets need adjusted. can anyone help me on what jet settings it should be...

Hi everyone! New to this forum. I was looking for some input on my engine build ive been undertaking for awhile now. Im all set for my 727cc stroker build (+5mm crank), done all my head work and +3 TB and I find my cylinder plating has worn through at the top. I sent it away to be replated, now...