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2007 LTR450

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I bought a 2007 ltr450 with no electric start it just has kick start. I cant get it to crank like it should by kickstart. It will crank by pulling it behind my truck and run fine but trying to kickstart it wont hardly do anything. it acts like its flooding. it back fired through the throttle body today and caught my air filter on fire. i removed the filter and intake hose and sprayed starting fluid in it and it started after a few kicks . it is firing but could there still be a firing issue

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Adjust your valves and check your compression. It's in need of some tlc in order to run right, if you just keep driving it the motor will eventually grenade. Have your valves adjusted and have a compression check done, it might need a top end as well. 

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LTR's need to have new valve shims put in them every so often. Same as doing valve lash. I believe its every year or so scheduled maint.

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