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hi so I have what I think is an x1 or x2 not sure but the problem I'm having has to do with the sparkplug. I replaced the spark plug and set the gap correctly but once it's in I try to pull start it and the tension is super tight and does not want to pull out with ease. any help would be appreciated thanks
 

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That happened to me. It turned out it was the spark plug, hitting the piston head! I got a shorter plug. But also , changed the head to a different one. That solved my problem. So, first try changing to a shorter plug. And check your squish. There’s lots of threads on the subject. Good luck.
 
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