twizted269 Posted January 30, 2009 Report Posted January 30, 2009 jsut got an 87 in the fall for $70. great deal. anyways, its impossible to start if the engine is below 50 deg. if i have the heat on till it warms up it usually starts within 3 kicks. i know its missing the brass tube in the bowl for the choke. would this be my leading cause or could it be something else? everything is stock besides the pipes. fmf gold series.any ideas? pretty hard to ice race when it wont start. lol. Quote
Dick Wheels Posted January 30, 2009 Report Posted January 30, 2009 I think you answered your own question. Fix the choke, check your jetting and make sure you have clean carbs and good compression. Go from there! Quote
twizted269 Posted January 30, 2009 Author Report Posted January 30, 2009 I think you answered your own question. Fix the choke, check your jetting and make sure you have clean carbs and good compression. Go from there! thought that would be the prob. but wanted to check anyways. ill try that and see what happens. Quote
twizted269 Posted January 31, 2009 Author Report Posted January 31, 2009 alright, put brass tube into the carb and kicked about 100 times and still nothing. its about 20 out so maybe its just the cold. anyways, anyone have an idea of what i can look for? Quote
AKheathen Posted January 31, 2009 Report Posted January 31, 2009 alright, put brass tube into the carb and kicked about 100 times and still nothing. its about 20 out so maybe its just the cold. anyways, anyone have an idea of what i can look for? what is your jetting? Quote
twizted269 Posted January 31, 2009 Author Report Posted January 31, 2009 what is your jetting? i believe it is either stock or jetted for the pipes. i dont know. i never really looked. im guessing stock. Quote
05.Banshee.SE Posted January 31, 2009 Report Posted January 31, 2009 Check your compression and let us know. Quote
sheefreak Posted January 31, 2009 Report Posted January 31, 2009 If your bowls are switched and on the wrong carb, your choke will not work properly either. Some bowls are marked 1-1 and 1-2 if I remember right on the inside. 1-1 goes on the choke lever side or left side. Did you clean your pilots? And I mean clean them. You need to be able to see plenty of light through them. Compressed air will usually do it. If not, torch tip cleaners will work. Also for the cold weather, close your airscrew down to 1/2-1 turn out. That will help as well. If you find it works at half turn out, you will want to go up a pilot size. Quote
regalrocket Posted January 31, 2009 Report Posted January 31, 2009 This is a super common problem, I see it 3 times a week or more. MODS I think we need a STICKY!! on this one, it will help people out, and hands down is the biggest problem. First off, the issue is with your choke circuit. It runs once it is primed, so thats the issue. First off, questions: Are both of your carb slides mounted so that the cut faces the inlet? Is the needle retainer positioned so that the hole in the slide is visable threw the slot that the cable mounts into? Is your transfer tube connected to the correct boss? Is the O-ring on the choke plunger in good shape? Are the carb bowls mounted so the bowl with the air bleed jet is on the left carb? If all of these check out, then move on to cleaning. The choke and pilot circuit are very picky. It takes compressed air from a compressor at around 60psi, and some spray on carb cleaner. remove the main jet, pilot jet, and the brass tube that the needle goes into, and the main jet threads into (remove the main jet, and use a plastic punch to push it out the top of the carb. Hose them down with the cleaner, and blow out ever little hole in that thing. Reassemble, and start it up. The first time you put totally dry carbs on, the choke circuit probaby won't work. Put your hand over the carbs and kick it to make a poor mans choke. After its running, pull the choke plunger out, until it start running bad (purges the air out of the circuit and gets some fuel in it). After all of that, shut if off and let it cool down, really cold. Then go out after a few hours, pull the choke, and when it starts on the second kick, go drink beer, cause your all that man is, and you made a machine your bitch. I had the same issue, and chased my tail and ended up doing a top end, new reeds, new reed cages, plugs, changed pilots and cleaned the carbs. After some digging, I found out that the previous owner had the carb slides backwards, the slide vent hole covered, and some others suff wrong. It took the compressed air cleaning to actually fix it, and it was NIGHT and DAY after that cleaning. Quote
twizted269 Posted January 31, 2009 Author Report Posted January 31, 2009 ok all bowls are correct. double checked that. carbs are very well cleaned. every nook and crany. all lines and slides correct. havnt checked compression yet. only problem is starting. when its warmed up it runs like a raped ape. ill check the compression and get back. Quote
HiRoller Posted January 31, 2009 Report Posted January 31, 2009 Thanks for the post rr and this should be stickied. I've been chasing the same problem and will take your advice. Quote
twizted269 Posted January 31, 2009 Author Report Posted January 31, 2009 compression tested fine. 110 at both cylinders. had heat on to about 50 for about and 2 hours and started after 20 to 30 kicks. ran fine. gonna let it cool back down to too damn cold and try again. crossing my fingers. Quote
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