gclark63 Posted August 18, 2008 Report Share Posted August 18, 2008 Went riding two weeks ago banshee ran great, except kept fouling out plugs. Got back home and would not start at all. It is a 97 with 17cc domes +4 advance, stock carbs, no tors, no park break. I went and replaced tha stator and coil, I am getting good spark from both sides, When I pull out the plugs the are wet like it is way too rich. i moved the clip on the needle to the 2nd slot from the top, it was in the third slot. It still seems that there is way too much fuel getting to the cylinders. I even gave it a shot of ether and no luck. Any advice at all will be welcome. Quote Link to comment Share on other sites More sharing options...
spurdy Posted August 18, 2008 Report Share Posted August 18, 2008 Went riding two weeks ago banshee ran great, except kept fouling out plugs. Got back home and would not start at all. It is a 97 with 17cc domes +4 advance, stock carbs, no tors, no park break. I went and replaced tha stator and coil, I am getting good spark from both sides, When I pull out the plugs the are wet like it is way too rich. i moved the clip on the needle to the 2nd slot from the top, it was in the third slot. It still seems that there is way too much fuel getting to the cylinders. I even gave it a shot of ether and no luck. Any advice at all will be welcome. What fuel do you run and what is your altitude? SP Quote Link to comment Share on other sites More sharing options...
gclark63 Posted August 18, 2008 Author Report Share Posted August 18, 2008 What fuel do you run and what is your altitude? SP mix premium with I believe vp110, alt is about 3400' Quote Link to comment Share on other sites More sharing options...
spurdy Posted August 18, 2008 Report Share Posted August 18, 2008 mix premium with I believe vp110, alt is about 3400' With that compression, you probably should be running a 100% race fuel of 110 octane (VP Red maybe?) or better (VP C12?). Have you checked your compression yet? SP Quote Link to comment Share on other sites More sharing options...
gclark63 Posted August 18, 2008 Author Report Share Posted August 18, 2008 I have not checked compresion yet, I dont have access to a compression gauge. One other thing it has been doing real bad is it has developed a very storg kick back when trying to start it. I will be trying to find a compression guage. Where is the best place to get one? Quote Link to comment Share on other sites More sharing options...
gclark63 Posted August 19, 2008 Author Report Share Posted August 19, 2008 BUMP Quote Link to comment Share on other sites More sharing options...
NitroTate Posted August 19, 2008 Report Share Posted August 19, 2008 You can get them at auto parts places but be careful of the cheap ones, they can read way off. Yeah check your compression to start with but what are you running for main jets? Also make sure your air filter/s and pre-filter/s are clean because if they are dirty you will run rich. Have you tried new plugs too? Quote Link to comment Share on other sites More sharing options...
LiftdT4R Posted August 19, 2008 Report Share Posted August 19, 2008 Shore does sound like a jetting issue to me. Are your unning stock carbs? If so, what is your jetting in them, also a complete list of mods, as well as your airbox setup would help a lot in determining what jetting to run. As far as the clips on the needles, on stock carbs you want the needle on the middle clip, believe it is the thrid. Quote Link to comment Share on other sites More sharing options...
travis6767 Posted August 19, 2008 Report Share Posted August 19, 2008 make sure the choke tube didnt fall off of one of the carbs, Quote Link to comment Share on other sites More sharing options...
gclark63 Posted August 20, 2008 Author Report Share Posted August 20, 2008 Well I did a compression check and niether cylinder would go over 75 psi. Left side leaked it down pretty fast but right side leaked down real slow. So do you think all I need is a top end???????????? Pro design cool head My pistons are 66.5m advanced +4 tors are removed parkbreak is removed Any feed back would be great, I am going to go take off the jugs and see what the pistons look like? The bike has never gotten hot at all, so maybe a new top end will fix the problem. Quote Link to comment Share on other sites More sharing options...
gclark63 Posted August 20, 2008 Author Report Share Posted August 20, 2008 bump Quote Link to comment Share on other sites More sharing options...
gclark63 Posted August 20, 2008 Author Report Share Posted August 20, 2008 Thanks for the comments, will post how everything later. Quote Link to comment Share on other sites More sharing options...
NitroTate Posted August 20, 2008 Report Share Posted August 20, 2008 Yeah as long as you used a good tester and ensured that it was screwed in tight and with the o-ring on then that compression is way too low and that's definitely your problem. Probably best to redo the top end. Quote Link to comment Share on other sites More sharing options...
J-Madd Posted August 20, 2008 Report Share Posted August 20, 2008 IF the 75 psi is correct, that's definitely your problem. The gauge shouldn't leak down at all. It should have a check valve that only lets air in, then you have to hit a button to release the pressure. Quote Link to comment Share on other sites More sharing options...
gclark63 Posted August 20, 2008 Author Report Share Posted August 20, 2008 Thanks for the input guts, im fixin to pull the heads off tonight. Quote Link to comment Share on other sites More sharing options...
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