dirtclod20 Posted May 12, 2004 Report Posted May 12, 2004 My banshee just decided one day to be a pain. When you go out and ride it, it will run fine until you go WOT, then it will miss and sputter sporadically and then clear up and do it again. I've made no carb changes, the cyclinder PSI is 115 both cyclinders. I run amsoil 100-1 at 80-1 which I sorda question, b/c this tank of gas is when the problems started. However, others run this ratio with success and I have too until this tank. I've changed plugs and checked them again and they look really rich. I'm running a 170main in my single 33pwk, anyone else run this carb, and if so what mj do you run. Lastly, what do you guys think my issue can be, I'm running out of ideas. Marc Quote
Justintoxicated Posted May 12, 2004 Report Posted May 12, 2004 no ideas but my banshee is doing the same thing for 1/2 season now I have messed with all kinds of jetting and can't figure it out... Changing your oil mixture to 100/1 from 32/1 will however make you run rich! You may need to lean it out... Quote
Black&Blue00 Posted May 12, 2004 Report Posted May 12, 2004 mixing at a 100:1 instead of 32:1 would make it a hell of alot leaner wounldnt it i always thought lower number the richer it was Quote
boonman Posted May 12, 2004 Report Posted May 12, 2004 My bike did that EXACT same thing. I thought jetting, (there was some serious weather discrepencies) but it turned out to be a loose wire on the primary side of the coil. Check them out. They are known to come loose, and it will do just what you are describing..... Quote
ledofthezep Posted May 12, 2004 Report Posted May 12, 2004 That's what mine did,...started & ran fine...but At & ONLY At WOT it would spit, sputter, cough, occasionally would backfire a little. I checked everything...at least a few times, broke down & bought a new stator. FIXED If you do get a new stator, do NOT buy an OEM stator. I got one & it lasted maybe 20-30hrs... What did the trick 4 me...also allowed me to advance my timing +4 http://www.rickystator.com/pages/YamahaBanshee200stator.html Quote
Justintoxicated Posted May 12, 2004 Report Posted May 12, 2004 (edited) ledofthezep, I have the ricky stator, it has 2 seasons or about 12 desert trips on it...I figured it would last longer than that? Is there a way to check if my stator is still good? It looks brand new! I have barley even run this SOB! I did think my headlights looked a but dim on it, I know they are run on different coils but perhaps the whole thing is going bad? My bike sputters and pops @ WOT only wether or not I have the lights on. mixing 100 to 1 vs 32 to one will make you richer "supposedly" because you have more gas moxing with the air...Thats why people have to richen it up when they mix tons of oil... This is because we are talking about the fuel/air ratio, not the oil/fuel ratio... Edited May 12, 2004 by Justintoxicated Quote
dirtclod20 Posted May 12, 2004 Author Report Posted May 12, 2004 Thanks for all the reply's, I'll check my coil wires until someone post how to check the stator. Also, I never said I was running 100:1 oil at 32:1, I said I'm running 100:1 at 80:1. I also should have said that it ran fine for 10-15 gallons at this ratio. Marc Quote
H300F Posted May 13, 2004 Report Posted May 13, 2004 Hey, replace your plug wires. Awhile ago I had that problem and the wires were it. Cheap fix if it is. I wouldn't touch your carb if it ran with that jetting fine in the past. Its something to do with the spark I think. Quote
superchicken Posted May 13, 2004 Report Posted May 13, 2004 i was thinking a fuel flow problem.had kinda that same promblem.took the petcock out of the tank,and it was solid full of shit around the screens inside.cleared right up after i cleand them Quote
Justintoxicated Posted May 13, 2004 Report Posted May 13, 2004 thats not what I was saying.... What I was saying is that if you are Jetted for mixing oil at 32/1 previously and switch to running 100/1 or 80/1 or whatever, you may have to re-jet to run that mixture properly...You should be running richer at 80/1 than you were at 32/1. Let me know what the problem is when you find out. Quote
boonman Posted May 13, 2004 Report Posted May 13, 2004 I'm lost at the mixing 100:1 at 80:1 ???? WTF does that mean??? How do you run 100:1 at 80:1??? You either run one, or the other....... Unless you may have two cans, one mixed 100:1 and the other mixed 80:1, and you dump half a tank of one ion, and fill up the rest with the other..... Quote
MotulMonsta Posted May 13, 2004 Report Posted May 13, 2004 Welp, what I imagine he's saying is although the mix ratio is leaner at 80:1 then 32:1, it's going to run richer because...now here's the fun part..Oil in the gas makes the gas thicker and thick gas does not pass well through those tiny jets..so at 32:1 your getting less gas into your motor with same jetting then if you ran 80:1. So with an 80:1 ratio your burning too much gas and fouling out your plugs..but with less life saving lubricating oil. It's a cheaters way to fine tune jetting by changing mix ratio's..it's also a very good way to ruin your motor. Your bike will not run right on an 80:1 mix if it's been jetted to 32:1 before that. Hell, my banshee won't run right on anything but motul 800 mx factory line mixed at 32:1. I guess my Banshee knows what's good and won't settle for anything less then the best. Quote
boonman Posted May 13, 2004 Report Posted May 13, 2004 It's not that the fuel is thicker with the oil in it, it is that per volume of fuel, there is more oil in the richer mixture, thus making less fuel present. if you took one gallon of 32:1 fuel:oil, and one gallon of 100:1 fuel:oil, the latter of the two would have more fuel per gallon of mix than the 32:1. Nothing to do with thickness, or "viscosity" as I think you are mentioning....... Quote
Dextreme Posted May 13, 2004 Report Posted May 13, 2004 Dirtclod, you might also try replacing your spark plug boots. Quote
ledofthezep Posted May 13, 2004 Report Posted May 13, 2004 ledofthezep, I have the ricky stator, it has 2 seasons or about 12 desert trips on it...I figured it would last longer than that? Is there a way to check if my stator is still good? It looks brand new! I have barley even run this SOB! I did think my headlights looked a but dim on it, I know they are run on different coils but perhaps the whole thing is going bad? My bike sputters and pops @ WOT only wether or not I have the lights on. I was in the same boat. I tried swapping coils, plug wires, everything I could think of before resorting to getting a new stator. I know what you mean, hell the OEM stator I put in when the stock one took a shit only lasted about maybe 20-30hrs. Don't know what would be frying them,..but it sure did. Here's a pic... Once I looked at it & saw all the melted shit I figured that's what my problem was & that's what it really ended up being. But I dunno, know anyone around you that'd let you try their coil? Have you checked the gap on the pickup coil to see if it's gotten off somehow? Quote
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