[Joe smith]

Spark looks ok plug very dry I have the air box sealed up very tight,I did try running the cart without muffler a week ago figuring the person before me ran it with calapsed oil ring for a long time ran for little still no high rpm just sounds late on timing the weard thing is it will all the sudden run like its brand new ,like to try ignitor box 279$ try if it doesn't work .I was going to check timing today by marking clutch at t.d.c. Pointer on motor pointing at mark check when it's running bad and good to se if it is a lot diffrent with timing light but I broke that little plastic carb joint checking the carb again I'm going nuts trying to figure this out back to the shop for more parts thanks for your help think of anything else let me know