I have never jetted before should I even try?

[01bansheefox]

I have never jetted my banshee before, should I even try to do it on my own or just take it to my mechanic?

I know about the main jet but thats about it... I dont know about the neddle? or clip you people always talk about. But my banshee runs in 1st gear like its in 5th doing 10mph just bogs everywhere and blows smoke like a diesel truck with bad injectors.

 

I bought some used carbs off ebay 34mm so i know it needs to be jetted for my shee. If i should try on my own let me know what i should go buy.

 

.60 over

Cut Head .020

Veforce 3

Port/Polish "clean up"

Power Pro Pipes

K&N clam on.

Thats all that i needed to know for jetting correct? If you need more information let me know. Also has a spacer if that even matters.

[speed_demon]

jetting is that difficuilt if you understand how it works, there was a really good post pinned in the jetting section, it definantly covers everything. You should check it out, and if you have any questions after that just let us know

[2strokesmoke]

if you own a banshee you should try to figure it out yourself just remember its better a little rich then a little lean. take your time you will get it ,i was taking mine to the shop every time i put a new mod on it got way too expensive so i started to do it my self good luck and we will be happy to help

[Banchetta]

It takes a full day to properly jet in a shee. Learn from trial and error. We can give starting points, but you still have to tweak it in...bringing it to a shop is worthless, I can probably get you alot closer than they can and I'm not even listening to it....do it yourself, we'll help you.

[banshee tuner]

Do it yourself, most shops charge about 75 an hour and get paid by the book, they are not going to spend more than what they can charge for so they are going to get it rich enough not to blow and collect your money.

[MILO]

i'd say do it yourself. search the jetting forum here for any questions or problems you may have, then if you still don't understand, post it here. the hq got me through my first jetting experience.

 

check out this link too, it should help explain things.

 

http://www.motocross.com/motoprof/moto/mcy...01/carb101.html

Edited January 11, 2006 by MILO

[2003LimitedBanshee]

Jetting is easy, good jetting is harder, but still achievable. The nice thing about jetting is that it is basically trial and error to get it exactly right. Now just make sure you aren't too lean, on your trial or it could get bad quick. Once you're in the ballpark it just take several small tweaks to find that optimal combo.

 

EDIT: Sorry forgot some recomendations. Don't know anything about the "Power Pipes", but based on the other stuff you will probably be in the 330 range. Most pipes will like anywhere from 320-350 with no airbox. Don't know what exactly was involved in your cleanup port/polish. If it was more just a polish, this shouldn't really affect the jetting more than a size (best guess) as it should really affect the engine's ability to move a significant amount more air. If it has been opened up, you may end up a few sizes larger for the port. Probably stock pilot or 27.5 at largest. And probably 4th clip on stock needle. NOW! this assumes you are at sea level with ambient temp around 55 degrees or so. At elevation or temp variation will change jetting.

Edited January 11, 2006 by 2003LimitedBanshee

[01bansheefox]

The jets are actually 250, you guys were saying 330-350 why is it way off from what you said?

 

250 main jet seems pretty small for all i have done but that is what it runs best at, I could do 270 but rich on the low end.

[Wallrat]

Are you running stock carbs? Cuz different carbs are numbered differently. You should be melting holes in your pistons at 250 mains in stock carbs with your mods. Keep in mind: 0-1/4 throttle is the pilot jet/air screw, 1/4-3/4 is the needle, 3/4 to WOT is the main. PLEASE, click the link to BenBB's jetting FAQ in my signature! I'd hate for you to blow up your engine by not believing us.

[2003LimitedBanshee]

Duh! I just reread the very first post (I'm an idiot shoot me now ) and he plainly stated that he is running 34mm's. Took Wallrat to ask the question for me to even look. With that said, I would still say from looking at the pics that you are lean. Now, are the pics you have of the carbs the stockers or the 34's?

[Wallrat]

Oh holy hell! Hahahaha! Think we can start this thread over to save us all some embarassment?

[01bansheefox]

? I never sent any pictures of my carbs did I? Anyway I have always ran 34mm and Nate McCoy of McCoys Performance helped me jet them and he said there 250main and should do me perfect just dont run down the rode wide open for miles at a time because then it could get lean.

Edited January 14, 2006 by 01bansheefox

[UNITED_BANSHEE_10]

dude that sucks, i like doing things my self, like installing pipes or fixing stuff, but where i come from, shops dont charge 75 an hour, its free. Once you purchase somthing they install it for you for free how come they charge you 75? they must be stealers, just they want your money. But its best doing it ur self. Fun + you get to know your machine.

[2003LimitedBanshee]

? I never sent any pictures of my carbs did I? Anyway I have always ran 34mm and Nate McCoy of McCoys Performance helped me jet them and he said there 250main and should do me perfect just dont run down the rode wide open for miles at a time because then it could get lean.

459394[/snapback]

 

Sorry, confusing threads I was responding to.

[Banchetta]

Are you running mikunis or keihin carbs??? It doesn't sound right for the jetting for either carb....too lean for mikunis and too rich for keihins.....need more info..