Power_Man Posted August 8, 2015 Report Share Posted August 8, 2015 (edited) Finished the 421 serval build. Specs: Wiesco 4mil long rod Unported serval cylinders V force 3 reeds 26cc domes (145 psi compression.) Passed leak down. No loss in pressure after 15 min. Pwk 35mm carbs 165 main jet 55 pilot jet. Needle in middle Shearer inframes New plugs. 300feet above sea seems to have a "popping" exhaust sound mid RPM and kinda boggy. Once power band hits it pulls nice. F.A.S.T is a little backed up. I've tried calling them. Edited August 8, 2015 by Power_Man Quote Link to comment Share on other sites More sharing options...
Strm Trpr Posted August 8, 2015 Report Share Posted August 8, 2015 The pilot seems pretty fat.And why didn't you get the cylinder clean-up ported? I do not understand why a shop would sell you an "as cast" Serval cylinder and leave 10-12whp on the table... Where did you buy this junk? http://bansheehq.com/forums/index.php?/topic/150211-redline-ported-serval/?hl=redline Quote Link to comment Share on other sites More sharing options...
Power_Man Posted August 8, 2015 Author Report Share Posted August 8, 2015 The pilot seems pretty fat. And why didn't you get the cylinder clean-up ported? Non-ported Servals and Shearers leave about 10-12whp on the table... sorry, it did have the "clean-up" port. i tapped out my funds right now. i can always send em back in the winter. so fat pilot. will put the stock pilot back in. FAST sent me them, and i just automatically changed em. they must of been a "just in case" as they also sent me 3 pair of mains. Quote Link to comment Share on other sites More sharing options...
Power_Man Posted August 8, 2015 Author Report Share Posted August 8, 2015 (edited) put the stock PWK pilots back in and it seems worse. I'm not sure if the popping is in my head due to the pipes, as they just might give off that sound. ill post a couple videos, im not sure if they will help, with wind noise and such, Edited August 8, 2015 by Power_Man Quote Link to comment Share on other sites More sharing options...
Power_Man Posted August 8, 2015 Author Report Share Posted August 8, 2015 https://www.youtube.com/watch?v=Ss2A0O-i6ms https://www.youtube.com/watch?v=eWItpGWg94w Quote Link to comment Share on other sites More sharing options...
Power_Man Posted August 8, 2015 Author Report Share Posted August 8, 2015 hmmmm im not really hearing a pop in either of the vids.................you'd know if it was popping............Okay, maybe it's just the pinging of the pipes. I know nothing of these carbs. I have the idle screw all the way in just to get em to idle. So maybe I'm Lean. It seems to come and go, not always the same. Could it be spark issue? Coil dying? I thank you for your help, but I'm lost. It was pretty straight forward to tune a stock carb bike. 1 Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted August 8, 2015 Report Share Posted August 8, 2015 If your idle screws are all in to get it to idle pilot is too rich , stock pilots are a 60 in 35 pwk so that's def no good , try a 48-50 pilot and see whet needle is in it if it's a deg needle try leaning it out one clip at a time , if problem persists might need a cel needle leave main at 165 till u get other areas sorted enouph to do a plug chop and be careful with your tune on that crank wiseco cranks don't like heat at all and will come apart if it's not on the safe side Quote Link to comment Share on other sites More sharing options...
Power_Man Posted August 8, 2015 Author Report Share Posted August 8, 2015 If your idle screws are all in to get it to idle pilot is too rich , stock pilots are a 60 in 35 pwk so that's def no good , try a 48-50 pilot and see whet needle is in it if it's a deg needle try leaning it out one clip at a time , if problem persists might need a cel needle leave main at 165 till u get other areas sorted enouph to do a plug chop and be careful with your tune on that crank wiseco cranks don't like heat at all and will come apart if it's not on the safe sideOkay thanks for that info. It is a CEL needle. I didn't mention that as I didn't know it was a big change. I'll get some new pilots from fast. Quote Link to comment Share on other sites More sharing options...
tdod101 Posted August 9, 2015 Report Share Posted August 9, 2015 Don't you live somewhere in Ontario? We're gonna have to race. I just got my 4 mil back Quote Link to comment Share on other sites More sharing options...
Bennett131 Posted August 9, 2015 Report Share Posted August 9, 2015 CALL OUT!!!!!! HES CALLIN EM OUT!!!!!!! Poor guy can even git r running.......now hes gotta back shit up already! lmfaoHaha that's the second one today! 1 Quote Link to comment Share on other sites More sharing options...
Power_Man Posted August 9, 2015 Author Report Share Posted August 9, 2015 Don't you live somewhere in Ontario? We're gonna have to race. I just got my 4 mil back Yeah I live near Belleville. What is your set up? Quote Link to comment Share on other sites More sharing options...
tdod101 Posted August 9, 2015 Report Share Posted August 9, 2015 Don't worry about it lol! 4 mil redline motor with a dune port. Quote Link to comment Share on other sites More sharing options...
Strm Trpr Posted August 9, 2015 Report Share Posted August 9, 2015 Don't worry about it lol! 4 mil redline motor with a dune port. ^^^ Exactly what I'm going to build after my Labor Day Weekend in Pismo.Does your sig reflect your build? Quote Link to comment Share on other sites More sharing options...
tdod101 Posted August 9, 2015 Report Share Posted August 9, 2015 I haven't been on here in about a year, so I should probably change my signature lol. I went a little different Quote Link to comment Share on other sites More sharing options...
Strm Trpr Posted August 9, 2015 Report Share Posted August 9, 2015 OP, I just reinstalled my Fireball LT front suspension yesterday. Found out some cool stuff about the camber and caster angles as the suspension articulates. I'm very excited to ride her now. First time I installed the a-arms straight up from Fireball, caster was +10*. Now it's set to +6*. Initial camber is -1* now. Today the Fireball +2 swing arm gets installed. If ground clearance is a priority for you, you might want to look at those JD Performance MGC a-arms. I'm pretty serious about suspension and handling. Quote Link to comment Share on other sites More sharing options...
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