Looking for Suggestions

[rejeanprimeau]

Adjust your carburetor with ethanol free gasoline if you can find some.

Using premium gas is not recommended to tune the carb if you'll be using regular in your tank.

[Tomcatt]

Originally Posted by dyno

While decelerating only

Have you adjusted the idle mixture screw for best idle?
Try screwing the idle mixture screw in 1/2 turn and see if that helps the popping.

[groovemeisterus]

Originally Posted by dyno

I get a little popping on deceleration but not really any major gain or loss of power

when hard on throttle and letting off quickly will cause a quick lean situation since cutting fuel and air ratio goes up.

That is normal.

Happened to me. Plus I have a 2000 and mechanical reserve on tank. I can usually tell getting low on gas when starts to pop and stutter then quickly put tank on reserve.




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[sungod]

Originally Posted by dyno

I get a little popping on deceleration but not really any major gain or loss of power

Just to be clear the roll off test starts at full throttle and ends at 7/8 throttle and hold.
Refer to the Mikuni HSR48 Manual.

[Turbo Sporty 48]

One change at a time.

[madnss]

Originally Posted by dyno

First time post here

have an 06 883 with the 1275 120+ kit

installed hammer's 120+ hp kit with the HSR48 and am looking to see what main jet has worked in the past for others. it came with a 190 and seemed to be running lean (not terribly lean) but none the less just looking to see what others have ran in regards to this kit/carb combo.

Thanks

Andrew

I think I ended up in the 185-192.5 range. As others have stated, the mik tuning manual is pretty darn good. I’ve never been above a 195 main, 48 mik on pump gas. That’s running 91 corn gas, same ish kit as you have.