95blazer Posted October 17, 2004 Report Share Posted October 17, 2004 Okay I finally got my shee out to Glamis and it ran great except for this weird problem. It would be running fine in the middle of a dune ride and then all of a sudden start cutting out and I would really have to work the throttle to keep it running and moving through the dunes. I shut it off once right after this happened and it wouldn't start, then after kicking for a while it started and ran great for the rest of the day. And then today we went for another ride we made it to Oldsmobile hill it was probably a 25 minute ride, it ran great all the way there. On the way back to camp it started to cut out again for about 2-3 minutes, once again I kept it running and all of a sudden it was fine. And then less than a mile from camp it started to do it again it was worse this time I could hardly even move, but again fixed itself and ran great by the time I made it back. I have no idea what could cause this, but to me it seems like it maybe an electrical issue. I say this because it feels like I am turning the kill switch on and off when this happens. The last time I stopped completely and it was still doing it so it has nothing to do with moving. Any guesses??? Here are my mods: .070 over pro-x pistons, head milled for race gas, K&N clamp-ons, pro circuit pipes, boost bottle, lightened flywheel, stock carbs with 350 mains, 30 pilots, and 3rd clip on needle, twist throttle with idle kit, UPP intakes, boyesen reeds, running VP C-12 mixed 36:1. Thanks, Derek Quote Link to comment Share on other sites More sharing options...
Toomey Banshee Posted October 17, 2004 Report Share Posted October 17, 2004 Is your parking brake assembly removed or at least unpluged? Quote Link to comment Share on other sites More sharing options...
95blazer Posted October 18, 2004 Author Report Share Posted October 18, 2004 It is removed and has been for years. Quote Link to comment Share on other sites More sharing options...
Motoman991 Posted October 18, 2004 Report Share Posted October 18, 2004 maybe there is some dirt in your fuel lines or something Quote Link to comment Share on other sites More sharing options...
stclark04 Posted October 18, 2004 Report Share Posted October 18, 2004 bad fuel? maybe you got some water in it some how. Quote Link to comment Share on other sites More sharing options...
Doodle Posted October 18, 2004 Report Share Posted October 18, 2004 I agree, it may be bad fuel. I had a similar problem like this happen before and I couldn't figure out what it was. I drained the gas and put some fresh fuel in and it ran fine. Quote Link to comment Share on other sites More sharing options...
95blazer Posted October 18, 2004 Author Report Share Posted October 18, 2004 (edited) The fuel should be good, it is 2 week old VP C-12. It runs great most of the time, therefore I doubt it is a fuel problem. After doing some searching I found posts stating that the coil may start to act up after getting hot. This problem did only occur when the bike was hot, so I think this may be the problem. Has anyone else experienced this, if so what happened? Could this be the CDI acting up, or do these either work or not work? Thanks, Derek Edited October 18, 2004 by 95blazer Quote Link to comment Share on other sites More sharing options...
95blazer Posted October 19, 2004 Author Report Share Posted October 19, 2004 (edited) Come on guys somebody must know if a bad coil will do this!!! Also will a CDI ever act intermittently like this? Finally it seems to only do it when it gets hot, so how do I test the electrical components for this condition. Thanks, Derek Edited October 19, 2004 by 95blazer Quote Link to comment Share on other sites More sharing options...
SDD Posted October 19, 2004 Report Share Posted October 19, 2004 Derek it sounds like you either have a loose connection (bad wiring) or your fuel starving. If you run a fuel filter and it has an air bubble in it or you have a really small filter I can see this happening. One side will run dry and you lose power but the motor can still be kept running on the one side. Around this time you roll into the bottom of a bowl or something and the fuel catches back up to the demand and it's back to normal or so you think. I would pull the exhaust and reeds and take a peek into the cylinders and make sure you have not seized/scored the pistons, rings, or cylinders. I have a motor on my desk waiting for a rebuild from a lean seize because of a fuel filter that could not keep up with the demand of the motor at wide open. This motor stuck a ring and scuffed a piston but kept running the second day. Good luck. Quote Link to comment Share on other sites More sharing options...
FIRST BANSHEE Posted October 19, 2004 Report Share Posted October 19, 2004 I've heard of a bad on/ off switch causing problems, maybe a wore wire grounding out, I had what sounds like the same problem, I changed the coil and mine was fine. Quote Link to comment Share on other sites More sharing options...
ledofthezep Posted October 19, 2004 Report Share Posted October 19, 2004 (edited) Sounds to me like you have some grunt in the carbs, have you cleaned them out yet? Maybe a wire working loose on the stator? Does it ever backfire? Edited October 19, 2004 by ledofthezep Quote Link to comment Share on other sites More sharing options...
95blazer Posted October 19, 2004 Author Report Share Posted October 19, 2004 The carbs are clean, and there is plenty of fuel in the float bowls when this happens. I do run a fuel filter which is brand new, however I have run an Identical one for years without a problem. I am hoping it is the coil, I plan to test it within the next few days. It also could very well be the stator, which has not been replaced, I will check it also. Thanks Quote Link to comment Share on other sites More sharing options...
95blazer Posted October 20, 2004 Author Report Share Posted October 20, 2004 Okay I tested the coil. I got .4 ohms resistance between the primarys, when I tried to check the secondary resistance nothing registered. I also trimmed the ends of the secondary leads and tested again once again there was nothing. Am I correct in assuming that this means the coil is toast? My question how did my bike run at all when there is absolutely no secondary resistance? Thanks, Derek Quote Link to comment Share on other sites More sharing options...
KRMit Posted October 20, 2004 Report Share Posted October 20, 2004 Mine's been doing the same thing. It only happens every once in a while for no apparent reason, then goes away without doing anything special. I noticed it after going to a 58 pilot. Now I'm down to a 45 and I haven't had the problem. Then again it seemed to always happen after a couple hours of riding and I haven't been doing that much riding lately. Quote Link to comment Share on other sites More sharing options...
95blazer Posted October 20, 2004 Author Report Share Posted October 20, 2004 Yeah mine was only doing it after a 20-30 minute ride but it was around 90-95 degrees out. I hope the coil is the problem, it would be an easy fix. Derek Quote Link to comment Share on other sites More sharing options...
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