need starting point to jet my bike

[rockenshee]

mods done fmf fattys , reeds pro series , k&n air filter in air box lid on +4 timming 64mm bore.

altitude 1540 feet or 468 mtrs

temp winter 15C summer 30C+ dry heat

 

really want to re-jet my bike i did the top end really enjoying doing all the work this is the first time working on a banshee im keen to learn

[GrMeyer]

mods done fmf fattys , reeds pro series , k&n air filter in air box lid on +4 timming 64mm bore.

altitude 1540 feet or 468 mtrs

temp winter 15C summer 30C+ dry heat

 

really want to re-jet my bike i did the top end really enjoying doing all the work this is the first time working on a banshee im keen to learn

 

Umm...

 

Well you will have to rejet for both temps.

Starting point for the heat.

 

Pilots 25

Mains 260

Needle Middle clip

Air screw 1-1/2 turns from LIGHTLY fully seated.

 

Read up on this site to help better under stand the jetting of a banshee and what problems mean what.

 

http://www.dfn.com/benkaren/jetfaq.html

 

Make sure you resync the carbs when your done messing with the carb tops.

 

Make sure you set your Mains first. Then the needle. Then the Pilot/Air Screw.

 

Changing the main's will change the jetting on the needle but not by much. I find what the bike likes the most and just let the needle be. And just changing the mains when temps change.

[06specialedition]

Start with a big main, then you can work your way down. You always want to be a little more rich, instead of being too lean.

[GrMeyer]

Start with a big main, then you can work your way down. You always want to be a little more rich, instead of being too lean.

 

Well played SIR. Its cheaper to replace plugs then it is pistons.

[rockenshee]

Umm...

 

Well you will have to rejet for both temps.

Starting point for the heat.

 

Pilots 25

Mains 260

Needle Middle clip

Air screw 1-1/2 turns from LIGHTLY fully seated.

 

Read up on this site to help better under stand the jetting of a banshee and what problems mean what.

 

http://www.dfn.com/benkaren/jetfaq.html

 

Make sure you resync the carbs when your done messing with the carb tops.

 

Make sure you set your Mains first. Then the needle. Then the Pilot/Air Screw.

 

Changing the main's will change the jetting on the needle but not by much. I find what the bike likes the most and just let the needle be. And just changing the mains when temps change.

ok so the range of jets i need wil be mains 240 - 280 wil i need to go up on the pilot 27.5 been reading looks like it be best to jet it to the cold first they say go up on jet size when the temp goes up is that right?

[GrMeyer]

ok so the range of jets i need wil be mains 240 - 280 wil i need to go up on the pilot 27.5 been reading looks like it be best to jet it to the cold first they say go up on jet size when the temp goes up is that right?

 

Well thats just for summer... I would prob look into getting some all the way up to 320's. Then you will never have to worry if you are lean on the top end. Just keep putting larger mains in tell it eats its face and then you know your rich!