hey, ive had this colt 10 ferrari on road car for a year now. It's a 1/10 scale on road and it has a .12 engine that i cannot get to run for more than 10 seconds. I cant find a manufactruar website on anything for this car and i cant get it to run. I put a few drops in the carberator and my glow pklug works but it will rarely start.. sometimes its nearly impossible to pull teh pullstarter and the engine wont turn over...please help and i was considerign getting a new egine for this if it doesnt work..what engine should i get and how do i know it will fit? thanks