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My problem is that it started up normally. Once it warmed up I started to take off it backfired a couple times and then started to move. It made a whinning noise but took off but when I slowed down again it backfired and then died. How do I fix this issue
 

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Start with simple stuff
Compression
Air leaks
Reeds
Reed plugs and piston tops

You DID clean the carbs this Preseason right?
 

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My problem is that it started up normally. Once it warmed up I started to take off it backfired a couple times and then started to move. It made a whinning noise but took off but when I slowed down again it backfired and then died. How do I fix this issue
My 94 vmax 600 had the same problem, and it had a blown piston. Hopefully it isnt as bad. Sounds like atleast one cylinder is firing, I would check spark and then compression.
 
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