2004 Yamaha YZ 125 "main jet" Questions

what is the size of main jet of YZ125? Main Jet: 410 Main Air Jet: 2.5 Jet Needle: 6BFY43-74 Needle Jet: S-1 Pilot Air Jet 1: #40 Pilot Outlet: 0.7 Pilot Jet: 40

...main jet? What exactly would it do for my 2001 YZ 125? a bigger main jet will make the bike run richer which means more gas. unless you have changed something on the bike which would involve a bigger ...

main jet. the plug I'm at 5400 ft and running a 490 main jet on a stock motor. the plug is showing lean. Oem spec for sea level is a 410. plug looks the same with a 380 main or a 490 main. why can't i

...main jet on mikuni ucal and spects for pilot air jet 1 and pilot jet 2 http://www.cmsnl.com/yamaha-yz125r-2003_model11245/partslist/A-12.html Site above has all the parts and specs for your bike. Jet ...

...jet, main jet, and air jet. 5. 3/4 to wide open throttle is managed by the main jet and air jet. 6. Wide open throttle is managed by the main jet. If you are running lean, spark plug electrode color ...

...main jet was plugged with gelled gas. This year it acts the same but the main jet was okay. I cleaned up the carb anyway and put it back together. Minor improvement. I have put in a new plug and do ...

...main jet and pilot jet numbers found stamped on the jets and needle number. You don't say where it is you are trying to get power. 125s have poor bottom mid power, it is all on top for racing. Don't ...