ChinaRiders Forums - View Single Post - Mikuni Carb Swap Jet Replacement Question

Weldangrind · 05-28-2015, 01:20 AM

Hey Kirk, it will depend on your elevation; the higher you go, the leaner it needs to be.

If you're anywhere near sea level, you might do better with a 112.5 or even a 115 main. You might need either a 27.5 or a 30 slow jet. The 100 that came with your carb is useless, so you can drill it out to 118 using a #56 drill bit. That's quite a jump from 112.5, but it would be interesting to try. It'll depend on the muffler and air filter that you're using.

05-28-2015, 01:20 AM	#5
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Hey Kirk, it will depend on your elevation; the higher you go, the leaner it needs to be. If you're anywhere near sea level, you might do better with a 112.5 or even a 115 main. You might need either a 27.5 or a 30 slow jet. The 100 that came with your carb is useless, so you can drill it out to 118 using a #56 drill bit. That's quite a jump from 112.5, but it would be interesting to try. It'll depend on the muffler and air filter that you're using. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0