Yamaha600Racer Posted December 17, 2003 Report Share Posted December 17, 2003 Hey guyz....i was riding my friends banshee the other day and when he went to start it back up he got fucked!!!!!! the quad would just idle and when u hit the gas it would bog like a mofo! i dont know what to do..please help...the only mods are PC pipes....we changed plugs and cleaned the filter...someone said that it might be crap in the carbs.....stock jetting....but this happened 2 weeks after the pipes....thankz for the help, Pete Quote Link to comment Share on other sites More sharing options...
Banshee crazy kid Posted December 17, 2003 Report Share Posted December 17, 2003 it's prolly runnin too rich or to lean ahh im confused maybe someone else can explain it better for u. I have an rc car and it does the same thing sometimes,u gotta play with the carb. Quote Link to comment Share on other sites More sharing options...
H300F Posted December 17, 2003 Report Share Posted December 17, 2003 check the parking brake to make sure its not stuck on at the caliper and at the clutch. Quote Link to comment Share on other sites More sharing options...
SandBastard Posted December 17, 2003 Report Share Posted December 17, 2003 Dude proly an easy fix. It might the Parking Brake (wiggle the clutch lever and make sure the small switch isnt stuck. the switch keeps you from riding with the PB on) Quote Link to comment Share on other sites More sharing options...
ledofthezep Posted December 17, 2003 Report Share Posted December 17, 2003 check the parking brake to make sure its not stuck That's what I'd do...1st. May also check the fuel petcock & make sure it's not clogged. Quote Link to comment Share on other sites More sharing options...
Yamaha600Racer Posted December 17, 2003 Author Report Share Posted December 17, 2003 nope the pb aint stuck or on....i put it in neutral and it still wont rev right....i have a feeling dirt got sucked in.... Quote Link to comment Share on other sites More sharing options...
. Posted December 17, 2003 Report Share Posted December 17, 2003 Is the parking brake still connected? Check down at the rear brake caliper and push on it. Sometimes that will stick some and trigger the switch a little making it do it. Follow the wire coming out of the clutch lever and disconnect that plug. Quote Link to comment Share on other sites More sharing options...
banshee_rider95 Posted December 18, 2003 Report Share Posted December 18, 2003 u mean u didnt have to change the jetting for the pipes???? u might be running way too lean.. what did the plugs look like when u took them out and put the new ones in??? Quote Link to comment Share on other sites More sharing options...
Yamaha600Racer Posted December 18, 2003 Author Report Share Posted December 18, 2003 they were carboned b4 the pipes but now there perfecT!!!! Quote Link to comment Share on other sites More sharing options...
boonman Posted December 18, 2003 Report Share Posted December 18, 2003 they were carboned b4 the pipes but now there perfecT!!!! HOLY SHIT!!!!!!!!!! Your plugs are NOT perfect. You have a time bomb, that may have already went off. you NEED to change your jetting. Pipes make a considerable difference in how much fuel and air your bike is sucking in. Go to this page to see where a starting point for your jetting will be. Read this page IN IT'S ENTIRETY. PLEASE!!!!! Now, there can be one of three things wrong, or a combination of them. Your TORS is giving you the difficulty, in which case the ignition is limiting the RPM's of the motor because it is ggetting a signal from one of the sensors (located in the thumb throttle housing, on top of the carbs, and in the clutch lever/parking brake assembly) that it doesn't like. Either the slides are sticking, the parking brake is on, or one of the switches/sensors is faulty. You can check this by unplugging the wires (3 of them in one connector) from the TORS brain unit which is located adjacent to the coil, underneath the fuel tank, which would be on the left hand side of the bike. (when you are sitting on it). It could be dirt clogging the main jet, although highly unlikely that it would bog the entire motor instantaneously. For this to happen, both carbs would have to clog at the same time. I have NEVER seen this happen. The top end could be smoked. Because of your retardedly lean jetting, (stock) when combined with the pipes is going to, or already has destroyed your top end. (melted a piston or both) You need to see WTF is going on here. Try the TORS first. TORS=Throttle OverRide System. Then, change your jetting to at least a 280 main. Unless your at 20,000' above sea level, in which case your jetting may be leaner than a 280. Next, get rid of the POS stock air cleaner setup. It is junk. Put in a pro flow plate, a toomey 2:1 kit, or clamp on pod filters. Any of them is 100% better than the stock setup... Now, find out which of the three it was, and let us know please. Please don't run this thing for any longer with the jetting you have. if you haven't killed your top end already, thank your lucky toilet paper and change the jetting to what it should be... Stock jetting is NEVER good for ANY bike with aftermarket pipes..... Trust me on this one... Quote Link to comment Share on other sites More sharing options...
lincster Posted December 18, 2003 Report Share Posted December 18, 2003 Stock jetting with PC Pipes? You are probably screwed. But, there are other simple things to check first. 3 things with electrical: 1. TORS 2. Parking Brake 3. Throttle Position Sensor You said it wasn't the parking brake so you need to check TORS and the TPS. TPS is in the thumb throttle, I had mine go out. Bike would start and idle fine, but would not rev. You can jumper this and check. Follow the wires coming out of the thumb throttle to a white connector. Disconnect and jumper the section that goes down the frame towards the motor. Then try and start. If not that, try disconnecting the TORS and seeing if that does it. If none of those works, you are probably due for a top end rebuild from running the bike too lean from the new pipes. One more thing, before you do any mods in the future, do a little research first, this will save you time and money in the future. I.E. putting pipes on and not changing the jetting.... bad call. Quote Link to comment Share on other sites More sharing options...
efward Posted December 18, 2003 Report Share Posted December 18, 2003 Just curious, but what exactly gets ruined in the top end here? thx Quote Link to comment Share on other sites More sharing options...
Klotz Posted December 18, 2003 Report Share Posted December 18, 2003 the problem is the jetting..you dont run dtock jetting eith after market pipes///////thats the problem for swure....you might have blew er up..or your gonna soon thanks shane Quote Link to comment Share on other sites More sharing options...
boonman Posted December 18, 2003 Report Share Posted December 18, 2003 Just curious, but what exactly gets ruined in the top end here?thx What will happen in the top end from lean jetting is a catastrophic failure of the piston. the combustion temps. in side the cylinder are ridiculously high. the lean jetting makes this happen. There isn't enough fuel. The temps get hot enough that after combustion takes place, and as the exhaust is exiting the chamber on the down stroke, it melts the crown of the piston near the exhaust port. 90% of the time, this type of failure can be attributed to lean jetting. As the piston melts, it "rolls over" the edge, and gets smeared onto the cylinder. Often times, the rings start scoring the cylinder wall and you get pissed. it really puts a damper on the days riding when this happens. Because now you have to have it bored, and a top end set put in. That is provided that nothing got into the lower end, in which case you would need to clean all that out. Quote Link to comment Share on other sites More sharing options...
spoin39 Posted December 18, 2003 Report Share Posted December 18, 2003 It's the TORS! I agree with boon, junk all the wiring connected to the TORS system. It's sensing your parking brake is on. I buy a new banshee every year and that is the first thing I do!! Quote Link to comment Share on other sites More sharing options...
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