volcrano Posted May 22, 2009 Report Posted May 22, 2009 Yo guys-i need help big time.i got a 99 shee with .40 over cyls.,chariot head eith cut stroker domes at 20cc,v3 reed cage,toomey t-5s,open air box w k&n filter and outerwear,1500ft. elevation,93 pump gas with klotz supertechniplate at 32:1 and 370 mains w a 50 pilot,so it says but i have noticable change with adjustment so itll work for now- and a long rod hotrod 4 mil.The jugs are ported by a known builder for the 4 mill and are dune/drag ported.I originally had a problem with a little bog at bottom.Ive had the problem for a while-after hours of jetting-results were minimal but better.So i got the motor built to the now 4 mill as listed.It still had the bottom end bog as if nothing changed but mid and top were great,with my 26 mm stockers.Well my buddies bike ran flawlessly and he had 34mm mikunis,and i have no idea which model as there is no part number anywhere!!!So i bought a chariot performance billet intake for the v3 steup and got my buddies carbs.The bike runs like shit.Bottom still a bog,midrange seems to not wanna go and as you throttle it is very pingy and flat and just seems like its running out of fuel or something-yes i know seems lean-but the wide open run-sometimes it will pull a gear and be okay and others,which is 90 percent of the time it will run out and sputter at top,near the shift point but not the overrev point.The power is poop.Ive sprayed around my intake w carb cleaner and no idle change,so no leaks.So-the intake has a internal crossover tube which can be removed.Ive never had or seen a banshee run the way mine does and it would eat 700 craptors all day and night,now im afraid to race a stocker.So ive narrowed it to my two replacement parts the carbs-which i know for a fact are right on in that sense,and the intake.Is the internal crossover tube screwing me up or do i need it???Im sure it has to be in the intake because ive seen the carbs in action and they didnt do this shit...I cant even start to jet because i cant get my start with the main!!!!!!!I went from 350s-which were sandblasted and 1 size every run-380 wet but 370 looked nice.Im still getting good changes in plug readings but no performance change,rich or lean,still a sputter and not great power!!!!I dont get it-i want to ride but im about to part this thing out.Too much time in tuning-i know its simpler than this.I also had the motor at 4 degrees timing and it seemed smoother at 0 and have checked fuel delivery and no hoses kinked or anything,i actually put on new line-stock size.Do i need a 5/16 line for better fuel????.Ny packing needs replaced too but i know its not causing this.Please help.Can i eliminate the crossover.It seems like the airfoil for the v3s is in as in being straight,but it doesnt touch the reed cage and i thing it might be creating some wierd turbulance-im throwing out ideas cuz im lost!! Quote
Fireroad Express Posted May 22, 2009 Report Posted May 22, 2009 if you are running 34mm flatslide mikunis you are way too rich. try 290 mains to be safe and jet down from there. your pilots are way rich as well. if they are round slides(vm) your jetting is probably close. what do you run for pipes? Quote
lt1bird Posted May 22, 2009 Report Posted May 22, 2009 Like he said...you are way to rich...my bike sputters bad at the top end when very very rich.... you will be suprised how much better the mid and low end will run once you put much much smaller mains in to get rid of the sputter! Its not a fuel dilevery problem...it takes a while to drain the bowls....not one gear Forget about the plugs and reading them for now...you need to get it to run before you do that crap... Keep going down on the mains until it starts to rev better... You will get to a point where it no longer studders and pulls clean. It will pul clean but seem kinda flat on power....Your still rich at that point! Its not gonna get on the pipe and pull real hard until you lean it out more! Then start checking plugs... tweek the needle for midrange and then finish on he idle jet/screw..... Get rid of the +4 timing until its running better...put back to stock.... Quote
volcrano Posted May 22, 2009 Author Report Posted May 22, 2009 if you are running 34mm flatslide mikunis you are way too rich. try 290 mains to be safe and jet down from there. your pilots are way rich as well. if they are round slides(vm) your jetting is probably close. what do you run for pipes? im running t5 pipes.when i had 350 jets in there it looked real white on the porcelain tho.it is fouling plugs though maybe i hadnt had a reading started yet from a new plug being too new to check.are you sure a 290 isnt too lean.i had 300 im my stocker w pipes vitos and reeds.someone told me at a shop that the 34s will take the same size my 26s did.i thought that sounded retarded.i just dont want to hurt it being lean but if i watch the engine temp i should be okay right?thanks for the help u guys are giving me too. Quote
Fireroad Express Posted May 22, 2009 Report Posted May 22, 2009 becauseof the flat slide design a TM mikuni carb will pull way more fuel through a 290 jet than a round slide VM mikuni of the same size will. trust me on this. i fucked with my TM 34s for quite a while before i realized this.the guys that sold me the "pre-jetted" carbs put 370s in them.idiots! they should have known better. my mods are very similar if not the same as yours. i'm running 280 mains at sea level and i'm still at least a size rich. i started you off safe at 290. at 1500 ft, you'll still have to jet down.(IMO). give the 300s a try if you want. hope this helps! Quote
volcrano Posted May 22, 2009 Author Report Posted May 22, 2009 becauseof the flat slide design a TM mikuni carb will pull way more fuel through a 290 jet than a round slide VM mikuni of the same size will. trust me on this. i fucked with my TM 34s for quite a while before i realized this.the guys that sold me the "pre-jetted" carbs put 370s in them.idiots! they should have known better. my mods are very similar if not the same as yours. i'm running 280 mains at sea level and i'm still at least a size rich. i started you off safe at 290. at 1500 ft, you'll still have to jet down.(IMO). give the 300s a try if you want. hope this helps! put in 290s and it is way better but i have 2 do a wide open check here in a minute.the mid is still off but im way fat on bottom.so i lost an air screw while testing cuz it was out just far enuf 2 wiggle and fall.got 2 new ones but they are a tad longer so im richer yet.how do the pilots drop in size are they by 2.5 or 5 or ten i dont know. Quote
Fireroad Express Posted May 23, 2009 Report Posted May 23, 2009 they go in 5's and in 2.5's. 45, 40,37.5,35,32.5,30,27.5............ Quote
volcrano Posted May 23, 2009 Author Report Posted May 23, 2009 put in 290s and it is way better but i have 2 do a wide open check here in a minute.the mid is still off but im way fat on bottom.so i lost an air screw while testing cuz it was out just far enuf 2 wiggle and fall.got 2 new ones but they are a tad longer so im richer yet.how do the pilots drop in size are they by 2.5 or 5 or ten i dont know. ok test run went well till police ruined the party.i have 270s in now and havent checked plug yet but top is nice.mid still choppy from quarter to half.is that rich too or lean?i know pilot is fat but can i still get it on needle or drop pilots first?suggestion on pilots?i have 2 go even leaner than normal since my mix screw is longer.thats funny! Quote
lt1bird Posted May 23, 2009 Report Posted May 23, 2009 Probably still rich on the mid as well...Can you move the clip on the needle up one clip position and try it.... Quote
volcrano Posted May 24, 2009 Author Report Posted May 24, 2009 Probably still rich on the mid as well...Can you move the clip on the needle up one clip position and try it.... moved clip up one and test rode.bike is better but bottom into mid still lags with a bog.top hits like a punch in the face.got 40 pilots now 2 turns out but still fat.guess ill try 35s. Quote
AKheathen Posted May 24, 2009 Report Posted May 24, 2009 fnally got around to reading this novel. what you were experiencing was washout on your plugs. you may want to consider going a little leaner on your oil, too. does it smoke alot? what fuel are you running? Quote
volcrano Posted May 25, 2009 Author Report Posted May 25, 2009 fnally got around to reading this novel. what you were experiencing was washout on your plugs. you may want to consider going a little leaner on your oil, too. does it smoke alot? what fuel are you running? smokes good at idle.raced my bud ill smoke him then top flattens and smokes.all gears pull hard except 6th flattens and hell catch up 2 me and were even!hes just ported!im running 32:1 klotz techniplate w a 50/50 93 and 110 mix.im bout 2 drop pilots and go 260 mains.plugs are cunt hair dark still.wtf is plug washout?thanks! Quote
AKheathen Posted May 25, 2009 Report Posted May 25, 2009 with race fuels, agressive, synthetic oils, and way too much fuel, the color will wash off the plugs during a plug chop. i believe there was a thread 1-2 weeks ago about it. alot of smoke indicates too much oil in the mix, imo. plus, i hear the klotz leaves alot of deposit buildup. you may want to switch to 40:1 before you go leaner on the jetting. just a suggestion. Quote
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