Need help with my magnum MK II! Carb messed up? Bad timing? wont run.

I have a 1978 Magnum MK II e50 with Treats 70cc kit, High comp head, CDI, Stuffy crank, and a 21mm oko carburetor. It does have spark. It hasn't ran in months. I've been adjusting the timing over and over and over, and i doubt thats the problem at this point. It is probably running rich, it has the 21mm carb. It spits over occasionally but not even a sign of starting even with starter fluid. I just got a bing 15mm carb but the intake made for it won't even fit on the magnum frame. So... new carb? keep working on timing? PLEASE HELP

Re: Need help with my magnum MK II! Carb messed up? Bad timing? wont run.

Wesley Ambrosini /

Air leak

Re: Need help with my magnum MK II! Carb messed up? Bad timing? wont run.

Did it ever run? What is timing set to? What jets?

Re: Need help with my magnum MK II! Carb messed up? Bad timing? wont run.

Dirty30 Dillon /

Sounds like you never tuned the carb, but that's just my first guess.

Re: Need help with my magnum MK II! Carb messed up? Bad timing? wont run.

Ran perfect before the kit, it used to have a 65cc kit. Got it running but it definitely didnt want to. About 5 mph top speed.

Re: Need help with my magnum MK II! Carb messed up? Bad timing? wont run.

Wesley Ambrosini /

> Reed Hois Wrote:

> -------------------------------------------------------

> Ran perfect before the kit, it used to have a 65cc kit. Got it running

> but it definitely didnt want to. About 5 mph top speed.

Air leak

Re: Need help with my magnum MK II! Carb messed up? Bad timing? wont run.

up shits creek /

Get it running and start spraying carb clean at the possible air leaks. How's compression?

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