Join Date: Jun 2019
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2009 Brute force 650 won't start
I've got a 2009 carbed brute force 650 that I can't get running for more than a couple seconds at a time. Several days ago the thing was running beautiful when parked after doing some chores around the farm. Went to start it up a couple hours later an it started and immediately proceeded to run like complete crap. Started to troubleshoot it the next day and it was getting spark to both plugs, fuel was clean coming out of carb bowls, fuel pump was refilling the bowls, and the air cleaner was clean and not clogged. Managed to get it started again and found the exhaust pipe from the rear cylinder was ice cold, seemed strange since the plug would spark when tested, so I checked both coils and the right that feeds the rear cylinder had much higher primary resistance than specs allow. So, I got a new OEM coil, installed it and now the damn thing still doesn't want to run. At first it wouldn't even try to start. Took both plugs out, they were wet with fuel so at least it's getting fuel. Checked them again and both are shooting strong sparks. Both coils show primary and secondary resistances to be in spec. Put the plugs back in and it started but wouldn't stay running for more that a couple seconds at a time, and after a little while not even that. The battery is currently charging back up and I'm looking for any help or ideas you guys might have. We bought this thing with extremely low hours but have had it for I think 6 or 7 months and it is run daily, so it's not like it sits around not being used. Any help will be greatly appreciated.