Raptor wont start! HELP! - Yamaha Raptor Forum
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post #1 of 3 (permalink) Old 04-20-2019, 05:31 PM Thread Starter
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Raptor wont start! HELP!

My 2007 Raptor 700 will not start. The last time i went riding it was bogging out and kept cutting off, so i replaced the spark plug on it thinking that would solve the problem. When replacing the plug, i noticed the throttle body had become disconnected from the top end. Now when i try to start it, the engine will not tun over and i get a big pop with white smoke coming from the air box! Any help would be greatly appreciated.
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post #2 of 3 (permalink) Old 04-23-2019, 01:23 PM
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First, pull the TB and clean the end and the rubber boot with alcohol.

Look thru the intake for dirt or anything that would hold the intake valves open.

Do a compression check.

Check the intake valve adjustment.

Try some starting fluid.

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post #3 of 3 (permalink) Old 05-01-2019, 08:26 PM Thread Starter
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Ended up taking it to the shop. The timing chain went bad and the intake valves were bent. Still had compression. Thanks for the help!
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