I have a drip coming from my radiator, has anyone used stop leak in one of these or do you think the passages, coils whatever are too small and it will get clogged? Any input will be appreciated, thanks

 

usually atv radiator passages are about the same size as car radiator passages. used stop leak b4 on other atvs, you should be ok, just usea a small amount-not the whole tube

 

I'd have someone who knows what they are doing to solder the hole where the leak is coming from or try to find another radiator. Stop leak will just create sludge in the whole cooling system eventually.

 

I think JB Weld is what you need, I've only used it on gas tanks but it is resistant to gas, oil, antifreeze ect. I know people have used it on radiators, split cases and even cylinder sleeves. The stuff is great, it shouldn't run you more than about $9 at the parts store.

Oh yeah and its a type of Super Epoxy so you don't need any special tools.