msroka
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Hey guys I’m new to building engines…please go lightly lol
I’ve read through many forums so far about this issue and I can’t find the answer, so I called Arc directly and asked what may be the issue.
I added 50lb valve springs and their billet flywheel. Stage 1 performance package through go power sports. Governor delete and low oil sensor delete.
Before I add my Twister crank and billet rod I wanted to put the engine together and see how it ran. Well, sure and behold. Doesn’t run well lol
I set valve lash after exhaust bump at TDC at .004 on both. Then .004 exhaust and .005 intake. Then I even traded .0015 and .003 but it doesn’t matter what I set at because the kickback is horrible every so often and the pull start is a little more tough to pull. When I called Arc they told me to bring exhaust lash to 0 and intake at .003 to reduce kickback? Does this sound right? Has anyone tried that? Feel like there’s a lot of compression when I tried to pull start the engine. I seated the flywheel nicely with valve grinding compound and am using a stock half moon key parallel to crank like you should?
I also should mention that the engine will turn over on choke like it has to, but to keep it running I need to half choke it with the idle screw turned up. When I take off half choke it stalls out. There is a 118 upgraded jet in the carb. The carb has been completely cleaned. Good ethanol free gas and use a fuel filter as well.
What the hell is going on!? Lol
I’ve read through many forums so far about this issue and I can’t find the answer, so I called Arc directly and asked what may be the issue.
I added 50lb valve springs and their billet flywheel. Stage 1 performance package through go power sports. Governor delete and low oil sensor delete.
Before I add my Twister crank and billet rod I wanted to put the engine together and see how it ran. Well, sure and behold. Doesn’t run well lol
I set valve lash after exhaust bump at TDC at .004 on both. Then .004 exhaust and .005 intake. Then I even traded .0015 and .003 but it doesn’t matter what I set at because the kickback is horrible every so often and the pull start is a little more tough to pull. When I called Arc they told me to bring exhaust lash to 0 and intake at .003 to reduce kickback? Does this sound right? Has anyone tried that? Feel like there’s a lot of compression when I tried to pull start the engine. I seated the flywheel nicely with valve grinding compound and am using a stock half moon key parallel to crank like you should?
I also should mention that the engine will turn over on choke like it has to, but to keep it running I need to half choke it with the idle screw turned up. When I take off half choke it stalls out. There is a 118 upgraded jet in the carb. The carb has been completely cleaned. Good ethanol free gas and use a fuel filter as well.
What the hell is going on!? Lol