ijustwannaride Posted July 30, 2006 Report Share Posted July 30, 2006 (edited) Hey there.... I have an '02 banshee, basically stock (T-6's, 280 main jet, toomey filter), and didn't get to ride much over winter...so it just sat in the shop. Last weekend, I went to Sand Lake, Oregon, and TRIED to ride this thing. Every time I took off, it would bog-out VERY bad on the bottom-end, like it was just drowning in fuel. I was feeling like crap, and didn't want to mess with it, so I just put up with it. I couldn't make it around in first gear without having to feather the clutch. It only had power up past the power-band, absolutely nothing below that. Anyway, it ran so bad I lost to a 400EX stocker....I took it home, took off the carbs and cleaned them out, blew EVERYTHING out, clean as a whistle (I think). I set everything back to where toomey suggested (float height, needle groove, fuel/air screw adjustment). Put the carbs back on, started it up, and it idles fine with both cylinders firing like perfect. As soon as I get on it, though (about 1/4 throttle), it seems like the left cylinder almost completely shuts off (fires about every third time I'm guessing), and I'm only running on the right cylinder. I'm getting fuel and I'm getting spark to both sides. So maybe I have a bad gasket or seal?? I haven't ridden the crap out of this bike so the motor should still be strong. I will check the comp. tommorow. Please, any help is greatly appreciated here. Thank you. Edited July 30, 2006 by ijustwannaride Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted July 30, 2006 Report Share Posted July 30, 2006 Hey there.... I have an '02 banshee, basically stock (T-6's, 280 main jet, toomey filter), and didn't get to ride much over winter...so it just sat in the shop. Last weekend, I went to Sand Lake, Oregon, and TRIED to ride this thing. Every time I took off, it would bog-out VERY bad on the bottom-end, like it was just drowning in fuel. I was feeling like crap, and didn't want to mess with it, so I just put up with it. I couldn't make it around in first gear without having to feather the clutch. It only had power up past the power-band, absolutely nothing below that. Anyway, it ran so bad I lost to a 400EX stocker....I took it home, took off the carbs and cleaned them out, blew EVERYTHING out, clean as a whistle (I think). I set everything back to where toomey suggested (float height, needle groove, fuel/air screw adjustment). Put the carbs back on, started it up, and it idles fine with both cylinders firing like perfect. As soon as I get on it, though (about 1/4 throttle), it seems like the left cylinder almost completely shuts off (fires about every third time I'm guessing), and I'm only running on the right cylinder. I'm getting fuel and I'm getting spark to both sides. So maybe I have a bad gasket or seal?? I haven't ridden the crap out of this bike so the motor should still be strong. I will check the comp. tommorow. Please, any help is greatly appreciated here. Thank you. Choke balance tube between the carbs connected? Are the slides in backwards? Quote Link to comment Share on other sites More sharing options...
ijustwannaride Posted July 30, 2006 Author Report Share Posted July 30, 2006 (edited) Choke balance tube between the carbs connected? Are the slides in backwards? Choke balance tube is connected. And are you asking if the slides are swapped because they are in the correct carbs. I'm worried now that it's something internal, but it has to be something simple. Any more ideas? Oh by the way, let's see if I can point this out - on the left side of my right carburator, just in front of the brass fuel nipple, there is a threaded hole. Did something vibrate out of that or is there nothing that threads into this? It's funny I've never noticed it before. Thank you for the help. Edited July 30, 2006 by ijustwannaride Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted July 30, 2006 Report Share Posted July 30, 2006 Choke balance tube is connected. And are you asking if the slides are swapped because they are in the correct carbs. I'm worried now that it's something internal, but it has to be something simple. Any more ideas? Oh by the way, let's see if I can point this out - on the left side of my right carburator, just in front of the brass fuel nipple, there is a threaded hole. Did something vibrate out of that or is there nothing that threads into this? It's funny I've never noticed it before. Thank you for the help. Did you put the left carburetor on the right side? That sounds like the idle screw hole which is supposed to be facing to the outside of the bike. Are you sure the slides are facing the right way! Cause if the right side carb is actually the left, and you have the slides on the correct sides for stock, then they wont be installed correctly. Quote Link to comment Share on other sites More sharing options...
ijustwannaride Posted July 30, 2006 Author Report Share Posted July 30, 2006 Did you put the left carburetor on the right side? That sounds like the idle screw hole which is supposed to be facing to the outside of the bike. Are you sure the slides are facing the right way! Cause if the right side carb is actually the left, and you have the slides on the correct sides for stock, then they wont be installed correctly. Yeah, they are on there correctly because the choke is on the left carb, the threaded hole I was talking about is on the right carb. I took them apart seperately to make sure nothing was mixed or swapped, so I'm positive they are correct. I wonder if my left plug wire has been stripped or split somewhere? I'm really up in the air on this one. Quote Link to comment Share on other sites More sharing options...
sheefreak Posted July 30, 2006 Report Share Posted July 30, 2006 Switch your plug wires and see if your problem follows. Get that compression test done also. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted July 31, 2006 Report Share Posted July 31, 2006 TORS still on the bike (the big thingy's on top of your carbs with knobs to tune the idle?) Threaded hole? Do both carbs have that steel/brass L shaped bracket on them holding the carb caps tight? If so...that threaded hole is fine. Leave it. There's nothing there. When you replaced the mains, did you check to make sure both slides were in sync with each other? That can cause it run like shit until you're wide open on both of them. Fresh gas and oil? Fresh plugs? How much oil to gas you using? You mentioned not riding it much in the winter. You did drain all the gas out and put fresh gas in, right?? Could be something that simple... Also could be plugged up pilot jets or pilot circuits...too. Quote Link to comment Share on other sites More sharing options...
ijustwannaride Posted July 31, 2006 Author Report Share Posted July 31, 2006 TORS still on the bike (the big thingy's on top of your carbs with knobs to tune the idle?) Threaded hole? Do both carbs have that steel/brass L shaped bracket on them holding the carb caps tight? If so...that threaded hole is fine. Leave it. There's nothing there. When you replaced the mains, did you check to make sure both slides were in sync with each other? That can cause it run like shit until you're wide open on both of them. Fresh gas and oil? Fresh plugs? How much oil to gas you using? You mentioned not riding it much in the winter. You did drain all the gas out and put fresh gas in, right?? Could be something that simple... Also could be plugged up pilot jets or pilot circuits...too. Here's where I'm at now: I didn't drain the fuel out over winter. I know, it was stupid of me. I'm running 32:1 Benol w/ premium in it. I'm 99% sure all jets are cleared since I blew them all out for quite a long time. The TORS is still on the bike (stock carbs). Yes, both carbs still have the L-brackets holding the cap tight. For syncing the slides, whats the proper way to do that? Plugs are new and gapped. I pulled out the reeds and they're fine. I'm going to buy all new gaskets and try that. Like I said, I'm getting good spark and fuel. It's the wierdest thing, it idles fine, and at WOT one side seems to completely shut down. Still stumped, I'm no carb expert here. I'm going to drain it all and start with fresh fuel - man I would feel stupid. Thanks for the help, and if there are any more ideas, please, let me know. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted July 31, 2006 Report Share Posted July 31, 2006 Drain the fuel, as you said...and clean the carbs. Benol is good stuff...but will gum up good if left sitting. Make sure you actually remove the pilot jets, and use a speaker wire to clean them out, blow ALL the holes out, too. If you're gonna go through all that trouble, remove the TORS while you're at it. Just one more failure point. Also...use a thin layer of RTV (orange hi temp) when putting the reeds back on...they need to seal properly... Good luck!! Quote Link to comment Share on other sites More sharing options...
ijustwannaride Posted July 31, 2006 Author Report Share Posted July 31, 2006 Drain the fuel, as you said...and clean the carbs. Benol is good stuff...but will gum up good if left sitting. Make sure you actually remove the pilot jets, and use a speaker wire to clean them out, blow ALL the holes out, too. If you're gonna go through all that trouble, remove the TORS while you're at it. Just one more failure point. Also...use a thin layer of RTV (orange hi temp) when putting the reeds back on...they need to seal properly... Good luck!! Hey, thank you very much...this really helps. I'm going to have to wait a little bit for the new gaskets to come in, so it will be sitting for a few days. Our stupid quad shop NEVER has anything in stock. Also, I'm going to have to wait to get a compression guage, ours is for a v8 and won't work on the banshee. Sounds stupid, but which ones are the pilot jets? And also, how do I sync the slides? Thanks again for the help.... I really appreciate it. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted July 31, 2006 Report Share Posted July 31, 2006 The pilot jets are directly in front of the Main jet. You'll need a small flat blade screwdriver to remove them. You sync the carbs by removing the air filter(s) and moving the thumb throttle. There's a 10mm locknut and 8mm nut/sleeve on top of the carb caps. You loosed the lock nuts...and adjust the sleeves until both slides move at the same time. Tighten them down, check 'em again. Quote Link to comment Share on other sites More sharing options...
GleasmJA Posted July 31, 2006 Report Share Posted July 31, 2006 Mine did the same thing a while back. Firing like every third time. It was the gas. Old gas is the devil. Changed it out and cleaned the plugs, ran great. Good luck. Quote Link to comment Share on other sites More sharing options...
ijustwannaride Posted August 1, 2006 Author Report Share Posted August 1, 2006 Okay, I took my air filter off and checked the slide sync. They are waaay off, the right one opens about 3/8 inch before the left one even budges from the idle position. At WOT, same thing, the right is open about 3/8 more than the left. I was thinking, maybe that 3/8 inch is enough for the right side to hit the power-ban, and suck even more fuel through that side, and completly dominating over the left? Could this be my problem? So I adjust the nut directly on top to move the slides? Thanks for any help. Quote Link to comment Share on other sites More sharing options...
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