Is this baseline jetting safe to start with..??

[Davenay67]

I have done numerous maintenance items to the bike since I picked it up recently; new plug, new oil in crankcase, clean and oil the air filter, new gas/oil in the tank, chain lubed, etc.

The bike ran great when I got it but spooged very heavily. I stripped and cleaned the carbs, taking note of the jets in there. It had a #48 pilot and a #150 main. I have since fitted new Mikuni jets; #42 pilot and #155 main.

The bike has a Pro Circuit expansion pipe and Pro Circuit muffler with spark arrestor. Also Boyesen power reeds. Mix ratio is 40:1 on Amsoil interceptor.

Is this a safe starting point to begin jetting as per the guide..?? I tried to done some preliminary jetting in my driveway, but wasn't getting anywhere (turning the air screw wasn't having much affect). I suspect the bike really needs to be brought up to temp and I was getting aware of the noise and smoke I was making in out very quiet cul-de-sac..!!

Planning to take it out for a full day of riding, and do the jetting at the start of that day.

Am I good to go, or should I change any of the setup first..??

Thanks..!!

Dave. :)

[bufftester]

Should be in the ballpark, but the only way to really tell is follow the jetting guide. BTW how did you fit Mikuni jets in a Kehein carb?

[Davenay67]

Should be in the ballpark, but the only way to really tell is follow the jetting guide. BTW how did you fit Mikuni jets in a Kehein carb?

My bad, meant to say genuine Keihin jets. Was looking at my street bike in the garage yesterday, and had Mikuni on the brain.

Planning to follow the jetting guide, I just want to make sure I'm not running a bad setup that might harm the bike.

Thanks..!!

[Joshmcmillan]

42/155 is a good start :)

[newbbewb]

Should be in the ballpark, but the only way to really tell is follow the jetting guide. BTW how did you fit Mikuni jets in a Kehein carb?

With a hammer, duh