Rc nitro car doesnt work properly?

When i start my rc nitro car up the wheels spin immediatly and gets stuck on full revs also i have to blow in the tube to get the petrol through. My car is a BMW GTR type. Please help
Thanks!

Ok, i think (THINK) that you have two seperate problems here. I think the first problem, of the engine engaging immediately, is due to the possition of your clutch. The second, i think is an air leak. Check the possition of your engine, and check your clutch shoes are'nt burnt out. Also, seal (i used high temp glue) anywhere around the fuel tank and exhaust system that may not be air tight.