421alkybanshee Posted July 3, 2011 Report Share Posted July 3, 2011 Hi everyone, Ive got a stock crank, .60 over cylinders that are not ported other than by someone who is not an engine builder so they didnt take much out, thinking about v force reeds and a set of ???? please post your suggestions on carb size and jetting and needles, everyrthing needed to run at sealevel elevation, Im here in Michigan. Quote Link to comment Share on other sites More sharing options...
421alkybanshee Posted July 3, 2011 Author Report Share Posted July 3, 2011 also whats the difference between the 34 PJ carbs and the 28PWK/39PWK carbs? I seen in a partsunlimited book these carbs and was wondering what you you get? a 28 carb or a 39 carb??? Anyone have a set of carbs that work great let me know Quote Link to comment Share on other sites More sharing options...
421alkybanshee Posted July 5, 2011 Author Report Share Posted July 5, 2011 up Quote Link to comment Share on other sites More sharing options...
majorcr3 Posted July 5, 2011 Report Share Posted July 5, 2011 go with a 30 pwk. youll be happy with that Quote Link to comment Share on other sites More sharing options...
itsaripper Posted July 8, 2011 Report Share Posted July 8, 2011 Hi everyone, Ive got a stock crank, .60 over cylinders that are not ported other than by someone who is not an engine builder so they didnt take much out, thinking about v force reeds and a set of ???? please post your suggestions on carb size and jetting and needles, everyrthing needed to run at sealevel elevation, Im here in Michigan. The first question is do you have aftermarket pipes. They are the one mod that is going to give you the most hp with a stock motor. With a two stroke it is the combination of all the mods that make power. Adding a set of carbs with out adding compression, reeds, timing advance, and or porting, will just cause the motor to bog off idle. Porting the motor and using the wrong pipes will restrict the power also. My sugestion would be: 1 pipes 2 Reeds 3 Ditch the stock air box and get pods 4 Get a cool head 5 Advance the timing 6 Carbs, but without porting, nothing bigger than the pwk 28mm This should give you something to ponder. Quote Link to comment Share on other sites More sharing options...
421alkybanshee Posted July 9, 2011 Author Report Share Posted July 9, 2011 (edited) Ive got t-5 pipes and silencers,, coolhead with 22 cc domes, and v-force 3 reeds, +4 timing plate just bought 28 pwks. but do they come right from keihin already for the banshee with the correct needles, mains and circuits? I havnt tore into them yet too find out what they put in them. I will post later so then maybe someone can help lead me in right jetting and needle direction. Also are these domes gonna work well with what i have or should i get a different set? Edited July 9, 2011 by 421alkybanshee Quote Link to comment Share on other sites More sharing options...
LS3 Machine Posted July 9, 2011 Report Share Posted July 9, 2011 Ive got t-5 pipes and silencers,, coolhead with 22 cc domes, and v-force 3 reeds, +4 timing plate just bought 28 pwks. but do they come right from keihin already for the banshee with the correct needles, mains and circuits? I havnt tore into them yet too find out what they put in them. I will post later so then maybe someone can help lead me in right jetting and needle direction. Also are these domes gonna work well with what i have or should i get a different set? Depends on where you got the carbs. Some vendors set them up for your specific application. I got mine from forum sponsor PJMotorsports. They specialize in Carbs, and put in Jets that should be a close match for my setup. Im not sure what the standard size jets that come withe the PWKs. 22cc domes are good for pump gas setups is what my research here came up with, Im doing a lot of the same mods you are. heck out some of my posts here, as Ive asked a lot of the questions you have already, and got some very helpful answers. Quote Link to comment Share on other sites More sharing options...
LS3 Machine Posted July 9, 2011 Report Share Posted July 9, 2011 Ive got t-5 pipes and silencers,, coolhead with 22 cc domes, and v-force 3 reeds, +4 timing plate just bought 28 pwks. but do they come right from keihin already for the banshee with the correct needles, mains and circuits? I havnt tore into them yet too find out what they put in them. I will post later so then maybe someone can help lead me in right jetting and needle direction. Also are these domes gonna work well with what i have or should i get a different set? Some more info for you: It looks like the PWK 28s come with 135 main, 38 idle. You will more than likely need something around 150-155 range with around a 48 idle, based on your mods. It also depend on your altitude. Check this out: http://www.pjmotorsports.com/keihin-pwk-carburetors.html Hope this helps. Quote Link to comment Share on other sites More sharing options...
421alkybanshee Posted July 9, 2011 Author Report Share Posted July 9, 2011 thanks for the help, i tore into the carbs and they have 140 mains with 42 pilots with LGN needles. My mods are: stock crank, 60 over forged wiseco pistons,v force 3 reeds, +4 timing, T-5 pipes and silencers and at 0 elevation. I purchased the carbs from parts unlimited just because im a dealer through my work. Quote Link to comment Share on other sites More sharing options...
421alkybanshee Posted July 10, 2011 Author Report Share Posted July 10, 2011 anyone else? what are the LGN needles? do I need to replace with a different needle if I change the main to 160? and change the pilot Quote Link to comment Share on other sites More sharing options...
Ingram306 Posted July 10, 2011 Report Share Posted July 10, 2011 If it helps, Im at sea level too, 30 PWK carbs ( pretty close) and T5s, Im at 150 mains, 45 pilots, and one turn out on the air screw with a K+N filter Quote Link to comment Share on other sites More sharing options...
421alkybanshee Posted July 11, 2011 Author Report Share Posted July 11, 2011 If it helps, Im at sea level too, 30 PWK carbs ( pretty close) and T5s, Im at 150 mains, 45 pilots, and one turn out on the air screw with a K+N filter Thank you, i think i will try your setup. Quote Link to comment Share on other sites More sharing options...
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