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Showing results for tags 'big bear 250'.
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Hey guys, I just picked up a 09 Big Bar 250 that was completely taken apart. The owner was trying to fix a no spark issue. I put it all back together and sure enough no spark. I have had a Timber wolf, 3 Bear Trackers, and Bruin 250 over the years so yeah I like these things. After a ohm test on the stator sure enough dead pickup coil, so I ordered a fleabay special. I have put one of these on a couple of the other quads with good results. Anyway, the stator came today and I installed it right away. Quick check and sure enough nice spark. Hook everything up and no start, but a nice backfire through the carb. Clean carb,, no start. Check compression (120psi) no start. Hit it with starting fluid and it back fires real bad, you can hear the starter one way clutch complain. Try pull start and it really jerks your arms. I pulled it back apart and checked flywheel key. Lined up timing marks and they are spot on. Set valves to .004 intake, .005 exhaust. It seems like it is firing on the wrong time. But there is no way to do that, that I can see. Could the new stator pins be backwards? Would it spark but out of time? I am stumped. It doesn't even try to start just bad backfire through the carb. Ideas?
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I bought my big bear in 2009, never had a bit of problem with it until last year. It quit starting but still would click when I tried to start it. I replaced the solenoid, the cdi module ( it was burned on one corner) and this year replaced the battery. I have all lights but still will not start and I do not have the clicking when I try to start it. Can anyone give me any ideas what to try next? I haven't had any luck finding videos about the 2008 Big Bear. I'm trying to avoid the expense of sending it to the shop.