Yardman (MTD) ym400 trimmer problems

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  #1  
Old 08-11-12, 12:51 PM
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Yardman (MTD) ym400 trimmer problems

Hello, I have a ym400 trimmer and the last time I used it, the starter rope broke on me when I tried to start it. I found a new rope, wound everything back up, and tested the recoil before putting everything back together. I can pull freely and the rope rewinds itself back up. After putting everything back together, it sometimes sounds like the plastic teeth on the recoil pulley assembly aren't grabbing the flywheel. 1 out of every 7-10 pulls of the rope will pull normally and try to start the engine, all others will sound like the flywheel isn't being engaged. The teeth on the recoil pulley assembly look a little wore down, but honestly the new ones don't look that much better. I never had this issue before the rope broke...

Could I have re-assembled this incorrectly? Did I miss a step, or do I just need to replace the Recoil Pulley Assembly as well?
 
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  #2  
Old 08-12-12, 06:18 AM
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Location: Iowa!!!!!
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That type of pull start normally has a dog or set of them that fly out to engage the flywheel drive. The dogs are likely where the problem is. They could be out of position and binding.
 
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