zts gixx Posted November 11, 2006 Report Posted November 11, 2006 (edited) Ok, doing a rebuild right now. I bought this banshee and haven't changed anything since I bought it. I recently blew it up, now going through rebuild. I have some questions. Below are my mods and current jetting/domes info. Pro Circuit factory sound 304 Platinum pipes. K&N shorties (or whatever they are called) hanging off the carbs (stock carbs) Boost bottle (I know they suck, but that's what came on it) Boysen power reeds Cool Head w/19cc domes Mains = 310 Pilots = 25 Air screws out 1.75 turns Elevation = 850 ft Winter temp avg about 30F-50F degrees 1st question Destroyed one of my domes, part of the piston melted/broke off and that piece beat pits all in the dome. With the mods I have, do I stay with 19cc domes or change them? 2nd question How does my jetting sound for my set up? Should I change the jetting any? I had the cylinders honed and that's it, it was minimum. I bought a Wiseco piston kit. I'm pretty new to 2-strokes, so sugguestions are very well appreciated. Thank you in advance for any help. I have browsed this forum for a while and see there are alot of educated people on here. Edited November 11, 2006 by zts gixx Quote
Bansh-eman Posted November 11, 2006 Report Posted November 11, 2006 1st question Destroyed one of my domes, part of the piston melted/broke off and that piece beat pits all in the dome. With the mods I have, do I stay with 19cc domes or change them? 2nd question How does my jetting sound for my set up? Should I change the jetting any? I had the cylinders honed and that's it, it was minimum. I bought a Wiseco piston kit. I'm pretty new to 2-strokes, so sugguestions are very well appreciated. Thank you in advance for any help. I have browsed this forum for a while and see there are alot of educated people on here. 1st. your domes all depends on what gas your wanting to run... pump racegas 50/50 what? smaller the domes, higher the compression, more octane... 2nd. couldnt help u there i blow at jetting for anything other then my setup and my alt sorry, at least im honoest and dont try to give you advise thats wrong Quote
zts gixx Posted November 11, 2006 Author Report Posted November 11, 2006 1st. your domes all depends on what gas your wanting to run... pump racegas 50/50 what? smaller the domes, higher the compression, more octane... 2nd. couldnt help u there i blow at jetting for anything other then my setup and my alt sorry, at least im honoest and dont try to give you advise thats wrong lol, I appreciate the honestly. I run pump gas, 91 octane. Also have another question. The Clymers manual says that the rings are different sizes. They look the same to me (I know it says to mic them) and they both have the same part #, is this only with stock pistons and rings or are the Wiseco the same? Do I need to go by a mic tool? Quote
06BaNsHeE Posted November 11, 2006 Report Posted November 11, 2006 lol, I appreciate the honestly. I run pump gas, 91 octane. Also have another question. The Clymers manual says that the rings are different sizes. They look the same to me (I know it says to mic them) and they both have the same part #, is this only with stock pistons and rings or are the Wiseco the same? Do I need to go by a mic tool? You should try to upgrade to 93 octane.A lil better :shrug: Quote
zts gixx Posted November 11, 2006 Author Report Posted November 11, 2006 You should try to upgrade to 93 octane.A lil better :shrug: The highest I can get from a station around here is 92. But then again, with 19cc domes, would 91 octane be good enough for the compression? Quote
Bansh-eman Posted November 11, 2006 Report Posted November 11, 2006 The highest I can get from a station around here is 92. But then again, with 19cc domes, would 91 octane be good enough for the compression? no one can tell you that... you got to get a compression tester and test it to see what kinda compression your runing... Quote
zts gixx Posted November 11, 2006 Author Report Posted November 11, 2006 no one can tell you that... you got to get a compression tester and test it to see what kinda compression your runing... ok, might do that after I get the rebuild done. Thanks :smile: Quote
BANSHEEPRO Posted November 11, 2006 Report Posted November 11, 2006 ok, might do that after I get the rebuild done. Thanks :smile: DITCH THOSE PIPES BROTHER CPI INFRAMES WOULD DO YOU RIGHT Quote
zts gixx Posted November 11, 2006 Author Report Posted November 11, 2006 (edited) I'll just keep the pipes I have, not really looking to spend more money but thanks. Any sugguestions on my jetting or domes? That's what I'm really looking for here :smile:. Oh and the ring sizes on the Wiseco pro lite piston kit, are they the same or different? Edited November 11, 2006 by zts gixx Quote
dajogejr Posted November 11, 2006 Report Posted November 11, 2006 1st question Destroyed one of my domes, part of the piston melted/broke off and that piece beat pits all in the dome. With the mods I have, do I stay with 19cc domes or change them? 2nd question How does my jetting sound for my set up? Should I change the jetting any? Nothing wrong with Pro Circuit pipes. When you want to get your cylinders ported and do more high RPM drag racing and dune riding, then it's time for CPI or Shearer pipes....they're a waste on stock port motors. You detroyed the dome more than likely because you didn't listen to your engine. At 800 feet above sea level, get 21cc domes unless you want to run a mix of race/pump fuel. No, you will not be ok with 91 octane and 19cc domes, I promise you... And your jetting might be a hair lean....if it were my bike, I'd put 340 mains in, do a proper plug chop and jet down if you have to...start out rich always.... http://www.dfn.com/benkaren/plugchop.html Quote
zts gixx Posted November 11, 2006 Author Report Posted November 11, 2006 would that be like a 50/50 mix of pump and race gas? What race gas would you use? VP? Sorry for all the questions here, just alot to learn about these bikes. I should prob just go with 21cc domes I guess. I just like to go out and rip it, i don't need to be buying race gas really, unless you think it would totaly be worth staying with 19cc domes and running a mix? Quote
dajogejr Posted November 11, 2006 Report Posted November 11, 2006 Just get 21cc and be done with it... I have two gas stations near me that sell 110 octane at the pump, all I've used...no issue. But I also run a lot of timing and compression, too... 19cc domes will put added strain on the stock crank. When you're ready, get it ported, shave the head, get the stock crank rebuilt and welded....then stick to 100% race gas. I'd see if a local gas station has it at the pump, I'd never pay VP prices for a 55 gallon barrel.... Quote
JET 99 Posted November 11, 2006 Report Posted November 11, 2006 the higher you get in compression the more reactive force on connecting rods, crank pins,bearings,wrist pins... i think there is a lot of unplanned damage due to trial and error..... common sense and alittle foresight can be a big tool when fixin things....... :beer: goodluck Quote
zts gixx Posted November 11, 2006 Author Report Posted November 11, 2006 Right on, thanks for the info. I'll start looking for some 21's. Any idea about the rings question? Are they the same size or different? They have the same part # so I'm assuming they are the same. Quote
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