tonytone Posted February 12, 2012 Report Posted February 12, 2012 just joined this site, first time posting in a forum. heres the deal, i picked up an 01 banshee. Low compression so I decided to put in a fresh top end. Bored .80 w weisco. It has procircuit exhaust, vforce3 reeds, boost bottle, stock box with k&n w no top, stock carbs w tors eliminated and idle screws. before start up on new top end i check the jets, they were stock main 200, 25 pilot. Changed main to 310, 27.5 pilot here in va at sealevel. Bike fired up 2nd kick and seemed super rich w smoke and up down up down idle and generally choppy until 3/4 throttle. Drove it several times up and down the street, and the left cylinder sounded as it was bogging or cutting out. Came to a stop and it cut out completely i believe from being so rich and would not start even after a few days. Come to find out the guy i bought from had the slides in backwards. I switched them and the bike still wont fire. Heres what ive done since, new plugs, checked spark..its there on both but seems maybe weak, gas is getting to carbs and they are clean, carbs are synced by eye, cross over tube is in place, compression is 145 on each cylinder, reeds are good, fresh gas 32/1. Still won't start, any suggestions? Quote
fastbanshee8 Posted February 12, 2012 Report Posted February 12, 2012 New plug caps, check the pickup coil gap, and it should be .02. Quote
Larry's Shee Posted February 12, 2012 Report Posted February 12, 2012 Choke crossover tube on? Float bowl with "BB" on front goes on left carb. Quote
beez33 Posted February 12, 2012 Report Posted February 12, 2012 Check your float needle. It might be stuck. Quote
tonytone Posted February 12, 2012 Author Report Posted February 12, 2012 Thanks, i will try and figure out how to check the pick up coil gap, i really dont know much when it comes to electrical. And the caps do look pretty nasty inside as well. Do these fail often, curious because it did start up easy the first few runs. Carb crossover tube is in place, Bowls are on the proper carbs, float needles should be free..messed with them the other day. Quote
Jereme6655 Posted February 13, 2012 Report Posted February 13, 2012 Thanks, i will try and figure out how to check the pick up coil gap, i really dont know much when it comes to electrical. And the caps do look pretty nasty inside as well. Do these fail often, curious because it did start up easy the first few runs. Carb crossover tube is in place, Bowls are on the proper carbs, float needles should be free..messed with them the other day. to set the pickup gap is easy....pull the flywheel cover from the side of the motor.......inside you will see the flywheel and the "pick-up" that is held on by 2 little screws and has 2 wires coming from it. it will be monitoring the flywheel and getting input from the magnets that are on the flywheels to let the ignition system know when to fire the spark. spin the flywheel by hand and you should see the little nubs on the flywheel pass really close to the pickup. The gap between the nubs and the pickup should be set to a very close tolerance....its early and i haven't had my coffee yet.....i believe its .018 that its supposed to be. most people will use a business card between the flywheel and the pickup. Quote
tonytone Posted February 13, 2012 Author Report Posted February 13, 2012 (edited) Gotcha, thank you. I just ordered flywheel puller just to have and check things out and some new plug caps since they are cheap. I will be checking all this in a few days when parts come in. Since there is weak spark on both sides visually, can that eliminate either the stator and/or cdi or could they still be culprits? Like I said im not learned on electronics yet, but when i do this work im gonna have my friend bring his ohmeter and help check some of this stuff Edited February 13, 2012 by tonytone Quote
tonytone Posted February 17, 2012 Author Report Posted February 17, 2012 alright fellas, i found that the problem is fuel related. I sprayed starting fluid into the carbs and it fired right up and died as soon as it burned. The carbs have been cleaned many times. I have them sitting here in front of me now to go through them once again. Fuel is getting to both of the bowls. Mains and pilots are new and clean. Float height is set to 21mm no gasket. What could be causing the fuel to not make it to the cylinders, vforce3 reeds check out fine visually. Any suggestions? Quote
421alkybanshee Posted February 17, 2012 Report Posted February 17, 2012 dump fuel out, and start over. Sounds like you may have gotten some bad gas Quote
Larry's Shee Posted February 17, 2012 Report Posted February 17, 2012 (edited) Make sure bowls are on correct crb, slide cutaway (angle) faces air cleaner. When you get new plug boots trim wire 1/4", add dielectric grease. Clean any rust off stator poles and nubs on flywheel when you have it apart. Edited February 17, 2012 by Larry's Shee Quote
ironmike Posted February 17, 2012 Report Posted February 17, 2012 dump fuel out, and start over. Sounds like you may have gotten some bad gas where are you in northern va i am in manassas Quote
n2otoofast4u Posted February 17, 2012 Report Posted February 17, 2012 is there any gas in the tank? is the petcock on? Quote
ironmike Posted February 17, 2012 Report Posted February 17, 2012 is there any gas in the tank? is the petcock on? i think i read were he said gas was getting to carb but not to cyl has to be something simple Quote
tonytone Posted February 17, 2012 Author Report Posted February 17, 2012 whats up ironmike, i live in woodbridge. bowls are on the correct carbs, bb on choke side, slide cutouts are towards the filter, choke tube is in place, has fresh 93gas 32/1 at 3/4tank, pilot is clean, float height set, carbs are synced but as im writing this i realized i synced them with the idle screw in, i will screw them out and let slides drop all the way down and re sync. i will trim back wire and put new boots when they get in, also clean up contact on stator. like i said a shot of starting fluid and started right up, i will be going over and rechecking everything tomorrow. if you guys have anything else that u think i should check let me know. Thanks Quote
ironmike Posted February 17, 2012 Report Posted February 17, 2012 whats up ironmike, i live in woodbridge. bowls are on the correct carbs, bb on choke side, slide cutouts are towards the filter, choke tube is in place, has fresh 93gas 32/1 at 3/4tank, pilot is clean, float height set, carbs are synced but as im writing this i realized i synced them with the idle screw in, i will screw them out and let slides drop all the way down and re sync. i will trim back wire and put new boots when they get in, also clean up contact on stator. like i said a shot of starting fluid and started right up, i will be going over and rechecking everything tomorrow. if you guys have anything else that u think i should check let me know. Thanks i am leaving today for busco beach atv park but if you dont get strait before i get back would be more then willing to help you if you on facebook look up overnight addiction racing and keep in touch goood luck Quote
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