Hard to pull

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I

ika

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Hi,


its seems - my engine has high compression, its very hard to pull, even stalls in TDC (highest point). If I remove spark plug is spins easily.


Any idea??
 
Try venting the fuel cap. Mine likes to pressure lock, and I find of I crack the cap, usually gets rid of my hard to pull condition. The stock Rampage fuel caps have tiny holes in them, but not enough to prevent a pressure lock. I know that some people on the forum have drilled out there fuel caps to allow it to vent easier, I have not done this yet.
 
I will try 1:25, as it has only 3 tanks.

after couple of tanks, will switch to 1:30.
 
see my video, its way too hard to pull.

when no spark it pulls easily. It even jams when pulling.

Is it high compression?

 
looked at the vid. nothing wrong at all. when the engine gets gas and is ready to light off, its going to have even more compression. i can actually lift my xb in the air for a second or 2 on a cold motor thats primed and ready to start. compression is horsepower. 99% of the time, i put the xb on a homemade stand with the wheels about an inch or 2 off the ground, on my knees, one knee is bracing the chassis, the other is where its most comfortable, then pull the starter.
 
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