Could you be running lean?
What's your plugs look like?
Here are plug pics. Rear plug was a little wet. Front cylinder was dry.
Could you be running lean?
What's your plugs look like?
You have something seriously wrong there if you are overheating with dual cooling.Better go back to the drawing board on that one,forget the fluid dynamics,its all about pressure and flow mostly flow,trying to get all fancy on the cooling lines will bite you in the arse every time.
Dual carbs?
The first plug looks a little lean to me.
U could try richening the mixture 1/8th turn on the low and high and see if that helps.
After I run, I can barely touch my engine without it being too warm. I don't wanna try touching the pipe.
If good water flow was reaching the stinger, there's no reason the tubing should get too hot.
shade tree method of testing if your motor is overheating:
you should be able to touch your head with your hand for about 2 seconds.
Your head pipe is probably around the same temp and your chaimber shouldn't be able to be touched at all, it may even sizzle a little when water is thrown on it. If it's hotter than that you've got a problem.
if your having trouble with prime when you get to the lake just take the fa off and put your hand on the top of the carb blocking it completely, full vacuum and it'll suck fuel into the carb right away