Chanceb Posted September 3, 2010 Report Share Posted September 3, 2010 hey...I need some advice. I'm new to banshee's not new to mechanics. bought er in spring, ran good with 260 mains. needed some compprendo. so i put a new top end, and reeds with it apart. ran fine but fouled the occassional plug on either side(ya I know I shouldn't even be foulin). I just went to hinton AB dunes here and shee ran good the first two days(started acting up on the way back to camp) I had just put some new plugs earlier that trip so I decided to play with the throttle, try to get it hot or something. And what happens is that shee's runnin off one cylinder past 1/4 throttle(passenger side's runnin)I took the carbs off n cleaned em the following morning and packed my other jets in my kit. started fine, idles fine. Go to take off and starts missing. so I went down the 15min trail to the dunes to get er hot. shee still ran bad. but decent enough to get er decently hot. Pulled the plugs n the passenger sides brown, other white. I was scared through I bumped a 270 in that side. still missin but a little better n still white plug. go for the 280 and same thing... worse power so far...barely limped back to camp. I want to know if it could be a timing or spark problem past this 1/4 throttle sh*t. It was runnin awesome for the first few days then that...Shee's got some LRD pipes, boysen reeds, tors are unplugged. hmm hmm hmmm....some advice would be cool...thanx Quote Link to comment Share on other sites More sharing options...
rdzbangshee Posted September 3, 2010 Report Share Posted September 3, 2010 you need to tell us Wat mods you have done to your banshee you sound very lean to me or your compression is not high enough . its best to take it easy on a new engine for the first 7 tanks off gas and not load up the engine.i have over fifty hours on mine and it runs like new .see what your compression is first.130psi is on a stock engine.and no less than 10psi difference between the two is safe. Quote Link to comment Share on other sites More sharing options...
Fullthrottle02 Posted September 3, 2010 Report Share Posted September 3, 2010 I would swap plug wires around and see if the issue followed the wire or remained on the same side. Plug caps are known to go bad creating weak spark, in which the issue intensifies at higher rpms. Quote Link to comment Share on other sites More sharing options...
Chanceb Posted September 3, 2010 Author Report Share Posted September 3, 2010 I would swap plug wires around and see if the issue followed the wire or remained on the same side. Plug caps are known to go bad creating weak spark, in which the issue intensifies at higher rpms. Guess I should have said I figure I got at least 20hrs since the rebuild... right b4 we left I through buddies compprendo tester on and was dissapointed...it took a few kicks but the passenger side was 110-115... drivers was slighly over 100...And I was thinkin shee was lean on that hinton ride...but it was runnin good the first few days...and even still there wasn't crazy lean power...during the midst of pullin plugs we put a lighter on that bad side to see if there was fuel on it....nope...I really like that switchin plug wires idea...I got a new voltage regulator on order...could have said that b4 i guesse..shouldn't matter though? I messed up on the topic of this too... It's missin after 1/4 throttle. Like I said my mods are a set of LRD pipes, boysen reeds, and my sleeves are milled a little out from that new top end. thanx a bunch guys! Quote Link to comment Share on other sites More sharing options...
Chanceb Posted September 3, 2010 Author Report Share Posted September 3, 2010 okay...swithed plug wires...same deal...ripped carbs and timing cover off...looked for wear in wires available, none. rust on one tab on the flywheel...could that b it? cleaned it up...but I'm goin in shortly to buy a flywheel puller and new throttle/clutch cables for the tag fat bars I bought... nething to know about setting points/clearance or nething here to aid with my problem here? Money isn't a problem. I love spending money on er. thanx! Quote Link to comment Share on other sites More sharing options...
Fullthrottle02 Posted September 3, 2010 Report Share Posted September 3, 2010 if the problem stayed in the original cylinder and did not move over when the wires were swapped, i would start checking into the carbs. Clean everything out again. When you look into the carbs from the back, do both needles rise up all the way, if not see if one of the clips have come off. Good luck man - let us know what it is when you figure it out. Quote Link to comment Share on other sites More sharing options...
AKheathen Posted September 3, 2010 Report Share Posted September 3, 2010 so, you're saying that the right side plug was white and dry, right? you will be able to see fuel, or oil if it's just spark. look in the carb for problems. make sure the float needle is clean and working, make sure the choke tube is on, make sure both slides move together, and the one isn't inop. when you have the carb out and on the bench, unscrew the main jet, remove the washer and put the jet back in. push firmly with the butt of a screwdriver with the top of the carb on the counter, and the emultion tube (needle jet) should come right out through the bore. make sure that's not all plugged up. clean all little passages real good with wire, etc, and put it all back together tentatively. while it's out, check the reeds. as for the stator pickup, use a sparkplug box flap to set it on one of the nodes, then roll it over and check the other node. a little difference is ok, but just a little. Quote Link to comment Share on other sites More sharing options...
Chanceb Posted September 3, 2010 Author Report Share Posted September 3, 2010 What we did right away @ camp was... looking @ the sync of the slides...and waste can of carb cleaner on er all apart.and still that day was the worst and made me f*ck with the jetting. got her all apart as we speak(laptop in garage) no scratchs looking in exhaust port,reeds are fine. A tricky note is that all summer I ordered 2 separate throttle cable from 2 separate dealerships for a (I beleive stock carbed)2004 banshee on seperate occassions. Both cables were a 12mm n 14mm to secure the cable assembly to the top of slide/screw top. The one I got off right now that I'm bringin in finally requires a 10 n 8mm. I was told some guys do this to get more out of their slide??? Quote Link to comment Share on other sites More sharing options...
AKheathen Posted September 4, 2010 Report Share Posted September 4, 2010 um.....the slides should top out just fine with stock and non-tors carb tops. what about the choke tube and cleaning/reeds? Quote Link to comment Share on other sites More sharing options...
Chanceb Posted September 4, 2010 Author Report Share Posted September 4, 2010 um.....the slides should top out just fine with stock and non-tors carb tops. what about the choke tube and cleaning/reeds? Well I pulled the carbs apart n cleaned them throughly, choke tube is fine if thats the rubber hose connecting carbs or the choke itself...both fine. I guess I could have said that these carbs have that boost bottle. but the boots to hold it r in good shape. If anyone knows anything about these smaller carb tops i have,It would be very usefull. It use's a 8 n 10mm I beleive vs the usual 12 n 14mm. It's sittin @ my dealers right now and me and him are both trying to figure it out, cause the cables just bout toast.Thanx Quote Link to comment Share on other sites More sharing options...
rdzbangshee Posted September 7, 2010 Report Share Posted September 7, 2010 Well I pulled the carbs apart n cleaned them throughly, choke tube is fine if thats the rubber hose connecting carbs or the choke itself...both fine. I guess I could have said that these carbs have that boost bottle. but the boots to hold it r in good shape. If anyone knows anything about these smaller carb tops i have,It would be very usefull. It use's a 8 n 10mm I beleive vs the usual 12 n 14mm. It's sittin @ my dealers right now and me and him are both trying to figure it out, cause the cables just bout toast.Thanx your dealer will have to get you a twist throttle kit for banshees then you can use the y harness from it . Quote Link to comment Share on other sites More sharing options...
Chanceb Posted September 12, 2010 Author Report Share Posted September 12, 2010 your dealer will have to get you a twist throttle kit for banshees then you can use the y harness from it . yeah yeah ... my dealer figured out, shee's a pro-motion tor'less setup.got a new one on order. soo... should all the wire connections goin to the thumb throttle b disconected? on other note... what do guys have to say bout taking that boost bottle off for more cable clearance, and input on those high flow coolant props, and adv timing? how far into your mods till u consider adv timing. Also I guess I should report how my problem is goin but shee's all ripped apart waiting for cables and I'm on shift till friday..... then I get to spend some time on her Quote Link to comment Share on other sites More sharing options...
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