stock banshee to 85 horse

[WINDYCITYJOHN400]

F that noise, send your carbs to the builder. Have them set up from there

Ummm... yeah...ok.    Your builder can't jet your bike for you. He can set it up fat enough that you won't burn down. But if your use to riding a Banshee and not doing any tuning, then your not riding a very impressive Banshee. 80 HP needs an owner that can read a plug and adjust as the weather requires. "Builder jetting" isn't gong to let some noob treat his 80 HP bike like a stocker and ride it from 100 degrees down to 30. 

My wife's bike makes 63HP and the jetting is SPOT ON! But as the weather changes I make airscrew adjustments to keep it mint. 1/4 to 1/2 turn can make a world of difference if it's dialed in. One main jet size too big...and the bike drops to 57HP.

[sleeper06]

Tuning is why my lil 4 mil wipes the floor with bigger motors

[oldskool]

Mike b. Think all this out. You got some very,very good advice here. 

[Jereme6655]

hmmm....mr mike b must not have liked his answers?

 

Truth is.....most people who want the info for a 80-90 horse motor and are "thinking" about building a motor of that caliber........don't, wont, or will walk away saying that they don't run worth a shit and try blaming it on the builder.  Its not the motor.....like windy said....you gotta know how to tune the motor. 

 

Hell if you can't tell me 5 seconds after your bikes motor starts to take a dump.....you shouldn't be building a bigger motor.  By this I mean that all of us that are all about maintenance and setups on our bigger motor bikes can tell you INSTANTLY when something in the motor doesn't feel/sound right the moment it starts happening.  And 99% of the time we can shut the bikes down and find the problem before we blow the motor to pieces. 

 

But like windy said, and like I said earlier.....start with a mid sized motor.

[Pasi S.]

.....

 

Hell if you can't tell me 5 seconds after your bikes motor starts to take a dump.....you shouldn't be building a bigger motor.  By this I mean that all of us that are all about maintenance and setups on our bigger motor bikes can tell you INSTANTLY when something in the motor doesn't feel/sound right the moment it starts happening.  And 99% of the time we can shut the bikes down and find the problem before we blow the motor to pieces. 

...........

 

This is the reason, why I stay with my 54/64 and learn first.

[Larry's Shee]

Catastrofic failure takes less than five seconds.