Need help with jetting

[BaNsHeeJuNkEy]

run it for a minute or two, then pull the plugs and post what they look

like.

 

you may need to move needles to the 4th clip-one step closer to the pointed end.

(it got better when you richened the mid range so maybe try giving it more)

look to see what markings are stamped in the sides of the needles.

also, has the float level been set properly ?

do you have new plugs in it ?

 

 

i have been leting it run and i pulled the plug and they are pertty wet not fludded wet but wet enough that it has a shine to it. they are used plugs i am surprised they still work after all of this i will put a new set in today and see what happens.i had someone set the flots for me i think it was suppose to be 16mm i think forgot what it says in the book. probely should check that again.

[BaNsHeeJuNkEy]

i went out there today to find out about the wiren and check everything. after i did all that adn everything looked right i decided to try and start it again and see what happen. it started rigth up turned the chokes off and it ran mit like i could give it wot and didn't stall for like teh first min or two then it started to do that same thing just shut right off. so i think it is my needle, needle clip and main jet.

[BaNsHeeJuNkEy]

ok got some good news droped the needle all the way down with the 148's now burbbling at all but now one side is running a little better then the other like not in sync. so going to take it tomorrow i think to a friends shop and try to get it better. thank god you i am glad it is almost done.

[dajogejr]

Well put...and you can help the next guy as well.

 

I'm a drag racer, so syncing my carbs isn't as important as it would be a trail/dune rider.

However, the tool I bought from Jeff @ FAST is priceless, takes the guess work out of syncing the carbs...

 

I just came back to this thread after skimming it...so, if that's been said, my apologies.

[BaNsHeeJuNkEy]

Keep your head up man, what you are doing right now is priceless experience in tuning a Banshee. From now on when the jetting is off just a hair you will know the signs and know exactly what to do.

 

 

that is why i been tryn to do it myself. and o am very thank fully to everyone that helped me.

 

Well put...and you can help the next guy as well.

 

I'm a drag racer, so syncing my carbs isn't as important as it would be a trail/dune rider.

However, the tool I bought from Jeff @ FAST is priceless, takes the guess work out of syncing the carbs...

 

I just came back to this thread after skimming it...so, if that's been said, my apologies.

 

ya i do a lot of trail, railroad track, streets and some sand pits and love drag.

[teddyurb]

IM new to this whole 4 wheeler thing lol,dont get me wrong i know a thing or two about engines.Im redoing this banshee i got for a steal,carbs had hella sand in em.I dont now how it even started lol.Needless to say i was wondering about what jetting i need to use.And how do you tell what size your pilot jetting is??the mains are marked right??If so it says i have 240s..When i disassemled these carbs which are stock mikunis the air needles were turned all the way in??Maybe this was because of the hella sand in them i dunno??It has been bored over .02 has a boost bottle k&n filter closed lid fmf fatt boys no silencers.I run 93 octaane out here and am in indiana.The guy at the cycle shop is saying that the jets should have been out about one and a half turns from light seat???I dunno.Oh also im putting some boyesen pro seriesreeds in because the stock ones are shot.Any suggestions or thoughts much appreciated.

[BaNsHeeJuNkEy]

IM new to this whole 4 wheeler thing lol,dont get me wrong i know a thing or two about engines.Im redoing this banshee i got for a steal,carbs had hella sand in em.I dont now how it even started lol.Needless to say i was wondering about what jetting i need to use.And how do you tell what size your pilot jetting is??the mains are marked right??If so it says i have 240s..When i disassemled these carbs which are stock mikunis the air needles were turned all the way in??Maybe this was because of the hella sand in them i dunno??It has been bored over .02 has a boost bottle k&n filter closed lid fmf fatt boys no silencers.I run 93 octaane out here and am in indiana.The guy at the cycle shop is saying that the jets should have been out about one and a half turns from light seat???I dunno.Oh also im putting some boyesen pro seriesreeds in because the stock ones are shot.Any suggestions or thoughts much appreciated.

 

 

ok i am not a pro but have learned a lot because of a few ppl on here. your pilots will have the size graved into them too just like your mains. if there was sand in there then make sure you do a realy good cleaning and take a peace or small wire to run throw the jets if stuff is stuck in them. new reeds wont need to be rejeted for but should get your self some silencers for them fatty don't think it is good to run them with out them. 1 1/2 turns sounds about right that is were mine are at right now too. but we run different jet sizes because we have total different carbs. if you don't go in deep want or mud get ride of the lid it will let more air in and help the quad breath. but if you realy want to know a lot about your carbs make a new post under this jetting and exhaust section with the exact carbs you got and what is done to the motor the best you can. also they will want to know your elevation and weather temps. and they will be able to help you so much more. but your needles and pilots and main jets will have the size and type on them post them up it will help a lot. and welcome to the hq and your new money pit. lol

[teddyurb]

ok i am not a pro but have learned a lot because of a few ppl on here. your pilots will have the size graved into them too just like your mains. if there was sand in there then make sure you do a realy good cleaning and take a peace or small wire to run throw the jets if stuff is stuck in them. new reeds wont need to be rejeted for but should get your self some silencers for them fatty don't think it is good to run them with out them. 1 1/2 turns sounds about right that is were mine are at right now too. but we run different jet sizes because we have total different carbs. if you don't go in deep want or mud get ride of the lid it will let more air in and help the quad breath. but if you realy want to know a lot about your carbs make a new post under this jetting and exhaust section with the exact carbs you got and what is done to the motor the best you can. also they will want to know your elevation and weather temps. and they will be able to help you so much more. but your needles and pilots and main jets will have the size and type on them post them up it will help a lot. and welcome to the hq and your new money pit. lol

 

 

Thanks for the reply,i dont wanna piss anyone off in here by posting a new thread on something that has been covered alot on here i see.I found the numbers on the main pilot jets thanks.Is the stock pilots on a 97 banshee 240??I dont go in mud hrdly ever so i will give that a shot man.The carbs are stock,im ot sure where indiana sits as far as level man lolI know i ride between 50 and 90 degree weather tho.So 1 and a half ill start at.The boost bottle that is on it wont effect the jetting setting or size will it??Thanks and yes this is actually my second money pit as i have a turb integra im working on as well.Almost done with her just need to install a breather tank and get rid of the pcv system.

[BaNsHeeJuNkEy]

Thanks for the reply,i dont wanna piss anyone off in here by posting a new thread on something that has been covered alot on here i see.I found the numbers on the main pilot jets thanks.Is the stock pilots on a 97 banshee 240??I dont go in mud hrdly ever so i will give that a shot man.The carbs are stock,im ot sure where indiana sits as far as level man lolI know i ride between 50 and 90 degree weather tho.So 1 and a half ill start at.The boost bottle that is on it wont effect the jetting setting or size will it??Thanks and yes this is actually my second money pit as i have a turb integra im working on as well.Almost done with her just need to install a breather tank and get rid of the pcv system.

 

 

stock pilot should be around a 27 i think and mains are around 210 220. ya if u don't like mud and you try and stay away i would my how air box is gone jkust filters.boost bottle wont do anything it is a paper weight i don't even have one.

 

and my brother had a integra ls vtec and we turboed it. thing was pertty nice and i had a 95 eclipse gsx with 30lbs of boost but got ride of that too before my driven step went to high. lol