Misfiring... Yes another one!

Oookay so here's the story...

Biuke hadn't been started in a week or two, ran fine last time she was out. This morning I went to start it up and it's missing... Sound like just one cylinder. I pulled the outer most plug on the left hand side and it didnt effect the ide, the wire is getting spark cause it tickled mea bit when I toched the motor. Anyway I'm wondering if the fuse box can be the issue (although everything looks fine in it) or the coil not putting out enough? I'm going to pull the pug to see if maybe the porcelain (sp) has cracked? Dont know whats up though,she went from running good to running not so good while sittingfor a week!

 

Alright, seems the problem is within the Petcock... I have it set to prime at the moment and she is running great (or good again) but when set to "on" it hesitates and stumbles\misses all across the RPM's from idle to hold on tight.

 

that sounds like you need a fueltap over kit because the rear diaghram has sprung a leak. but first check that the vacumme hose is not leaking anywhere and securely fitted. also check to make sure there is no fuel in the vacumme line, if so then a new kit is a must