It's a big fckin problem! Me I love the engines, getting parts in the U.S. almost impossible. But here's who to try. amain ,22racer,fx racing in canada. and of course mark from massive mods. mark has everything just make sure you have a big order to make it worth his while for free shipping. If not it is like 6.00 u.s.dollars minimum. It may take a few extra days to get the parts but you know you will get them. The fastest is if 22 racer has them. I would like to see 22 racer have some sort of web site to see what he has in stock. Evidently he has an in with russ jones, who I understand is a nice guy but has never been able to get me parts. And he's our u.s. distributor. He is working on a new web site so I am hoping we will have some thing nice here in the u.s. for go techs. I have a feeling with race factor putting up the new web site we should be able to get a fresh start for us go tech nuts here in the states.