cub jetting help please!

[siksykorx7]

so i just bought 68mm cub cylinders stock stroke and unported from rdz racing i asked him where to begin jetting at and he said he runs strictly alchohol and i have no idea where to start jetting at!! heres the rest of my mods toomey t5 pipes, keihn 35mm pwk airstrykers,pro design coolhead with 19cc domes, cases were ported, k&n powerlid, and plus 5 timing. right now my carbs have 160 mains 48 pilot and a dek needle thats how i bought them. any help is appreciated i just need a ballpark to get it running thank you also my elevation is about 1000 ft

[No Limit Powersports]

I would probably start with a cgl or cel needle and a 160 main is a good starting point and work your way down from there.

Andy

[wesw]

airstryker are jetted way different then pwk

 

i think i saw some one post like a 40-45 pilot mabye lower needle 2nd clip down it was like a bgl needle or something leaner than i would have ever used, and 150-160 mains maybe.

 

not sure i know the a/s seem to run lot leaner spec compared to pwk.

 

 

 

you might ask over at atvdragracers.com for jetting for airstrykers.

 

 

not a fan of those carb cause not many run them to get some idea of what to run.

[No Limit Powersports]

HUH, i have done alot of airstrikers and they are always pretty close to the standard pwk but its hard to say they are the leaner or fatter cause every bike is different. I just start fat and work my way down never start on the lean side of what i would think it needs.

[wesw]

91banshee

 

35 air strikers have diffrent slides and needles than regular pwk you cant go by someone jet size there running in 33s or 35 pwks

 

i have a set of 35s and ran a 38 pilot and 150 main on a drag ported 421 cub and it was pretty much dead on

your gona have t oget the pilot down some sizes and go from there

 

loboboy

 

I have spent countless hrs working with my 35MM A/S carbs and this is what I have ended up with for my jetting.

 

Pilot #42

Airscrew 2 3/4 turn out. ( I could use a leaner jet)

Main 135

Needle= CEL middle or 2nd from top position.

 

This is on a 7MM Stock Cylinder 67.25 Blaster piston Motor

Motor puts 87 to the wheels with around 55 FT/LB of torque

 

 

These carbs dont always take a huge main jet.

 

http://www.bansheehq.com/forums/index.php?...rykers&st=0

[dajogejr]

Nice find Wes...

Aren't the Air Strykers more geared towards MX etc compared to PWKs.

 

Rob @ RDZ is right, I doubt he even remembers how to tune a gas motor, he's all methanol over there.

[wesw]

Nice find Wes...

Aren't the Air Strykers more geared towards MX etc compared to PWKs.

 

Rob @ RDZ is right, I doubt he even remembers how to tune a gas motor, he's all methanol over there.

i know he builds some mean shit but i would hate to buy something from him and he cant offer any advice to help a guy out. guess if your just pure drag racing but still would annoy me if he was like hmm no clue i havent touched gas in forever.

[banshee332]

start with a cel 155 main and 55 pilot middle clip.

 

My 10mill liked del 55mains and 168 pilots with 39 pwks

[No Limit Powersports]

http://www.bansheehq.com/forums/index.php?...rykers&st=0

 

 

The link you posted was for a stock cylinder which is jetted differently than a cub. A 35mm a/s has a 4.5 slide in it and a standard 35mm has a 6.0 slide in it which is a leaner slide than a a/s so yes the jetting is a little different like i said but a i can change pipes and have to change jetting so everybike is different. We just got thru doing a 65x54 cub with 35 a/s on the dyno and it ended up with a cel needle and a 145 main but like i said start fat and work your way down... its alot easier to start fat and go lean then to start lean and rebuild...

[2bzy2p]

airstrykers are a better carb imo

Edited June 24, 2008 by 2bzy2p

[siksykorx7]

ok i think im gonna start with a 45 pilot ,155 main and a cel needle and go from there. As long as it will start and i can ride it around to see what it needs ill be happy. thanks for all the help everybody. ill let ya know how i make out on saturday after i get her all put back together

[03portedshee]

i know he builds some mean shit but i would hate to buy something from him and he cant offer any advice to help a guy out. guess if your just pure drag racing but still would annoy me if he was like hmm no clue i havent touched gas in forever.

Its hard to give advice when you own a bike that is a 4 mill and couldnt outrun a stock stroke stock cylinder bike. That has to suck. Maybe you should put airstrykers on yours so it can pick up some horsepower and be competitive. Keep looking for posts to copy and maybe someday you will find a post to help you tune yours so it will run. Some of us on here actually are speaking from experience on tuning and maybe you and passion racing should read and copy posts more often. Good luck to with the tuning of your fence jumping banshee.

[banshee332]

Its hard to give advice when you own a bike that is a 4 mill and couldnt outrun a stock stroke stock cylinder bike. That has to suck. Maybe you should put airstrykers on yours so it can pick up some horsepower and be competitive. Keep looking for posts to copy and maybe someday you will find a post to help you tune yours so it will run. Some of us on here actually are speaking from experience on tuning and maybe you and passion racing should read and copy posts more often. Good luck to with the tuning of your fence jumping banshee.

Dude get a life. wes's 4mill ran hard for what it was, it was more of a dune/trail shee then anything. it was no full blown drag bike on alky.

[03portedshee]

Dude get a life. wes's 4mill ran hard for what it was, it was more of a dune/trail shee then anything. it was no full blown drag bike on alky.

Wes's bike was the slowest piece of shit i have ever raced against. Also i have something for that slow a$$ passion 10 mil u have also.

[okbeast]

meh, nvm, not worth the effort.

 

but post pics of this badass bike if you would. doesn't look like you come around often, be nice to see some new stuff.

Edited June 26, 2008 by okbeast