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Posted

I start my jetting with 330 main and is too lean

 

I retry with 350 and is too lean against

 

what is the maximun jet I will can use in 26mm stock carb

 

 

 

Posted

Main jets for the stock carbs go all the way up to 500 if I remember correctly, but I've never heard of anyone going bigger than 370's. If you need more than that then you are probably using the wrong carbs for a big thirsty motor. Are you trying to run alky?

 

Tell us more about your set up and it would be easier to help you get it jetted.

Posted

well first off, what are your mods? you can go up to about a 480 jet but not without doing other stuff to flow that kind of fuel.

380 is about the max you want without modding your system to handle that, you will run your bowls dry.

you must have a shit load of stuff done to be needing more than 350 mains. I have all the bolt ons and run 320 and am doing great.

Posted (edited)

Vforce 3

TORS eliminator kit /with idle kit

Exhaust complet DMC aliens

CDi programmable Dynatek FS on curve3

ajustable timing plate Trinity +4 degre

Trinity StageIV head

dome 21cc

piston Wiseco p3

pro desing air filtre & adaptor

full open air box (side & cover)

 

 

with this porting

Picture014.jpg

Edited by 3SGTE
Posted
holly shit, would you look at them boost ports :ohmy:

 

 

ok, maybe you do need a bit more than a mikuni jet can flow. at least round slide.

try flat slides, they can flow more fuel with the same jet on a round slide. so a 300 jet will work like a 370 in a flat slide.

 

Posted
ok, maybe you do need a bit more than a mikuni jet can flow. at least round slide.

try flat slides, they can flow more fuel with the same jet on a round slide. so a 300 jet will work like a 370 in a flat slide.

 

tank you

 

Which model I should buy to have a set of carburettor of 34 or 35mm for a banshee

 

Posted
tank you

 

Which model I should buy to have a set of carburettor of 34 or 35mm for a banshee

 

 

I run stock carbs, there are tons of guys on here that run these carbs that can give you some pointers and recommendations on jet sizes. just make a post asking what to run in a flatslide. they can give you MM and jets if you get their attention.

Posted

well what kind of riding are you doing...some people will be able to help you pick some carbs that will work better for the riding your doing...but damn those are some flown jugs!!!! And who cuts those things? And what bore are you at? And are you using an aftermarket crank?

Posted
well what kind of riding are you doing...some people will be able to help you pick some carbs that will work better for the riding your doing...but damn those are some flown jugs!!!! And who cuts those things? And what bore are you at? And are you using an aftermarket crank?

 

I doing TT race, Ice race, drag race,...

 

a friend doing this port job... it's more than 100 hour job...

 

have stock bore at 3rd oversize

 

and stock yamaha crank not welded :(

 

 

 

 

 

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