i have an old o.s. cz engine in an old kyosho and i cant seem to get it runing and im thinking i might not just have the air/fuel mixture set at the right spot does any bodey know what it is supose to be set at? or what the problem could be that i am having because when i first got the truck i never did any thing with it except make it go brooooooom for like to sec then i was like ok its runs and just put it away with the reast. now i want to play with it and i cant get it to go so any one posible know what im doing wrong or what the problem could be?

You do not need to have the carb setting right to get the engine started, if it has fuel in the cylinder head, and spark, it will start. You need to worry about carb settings once it gets running, but tht will be another story. Why it is not starting could be from multiple things, back plug, air leak, poor compression, bad fuel, gummed up engine....etc.

ok cool thanks i think the carb is gunked up and thats the problem but yep it could be many many differnt problems thanks again

An old Kyosho? Can I see a pic of that? Outlaw Rampage? Nitro Brute?
Provided your engine is in good shape, and your carb is within the range of running adjustment, which is relatively broad, it should fire and run consistantly. If your engine was used at the time you acquired the truck, it could have already been well worn.

ok yea ill but a pic of it on my page im not shure what kind of kyosho it is tho i traded my tc3 for it

actualy i already have a picher of it on my little page thingey there

Yup, Rampage chassis. Fun truck. Has some Duratrax upgrades, including the slide carb on there. You wouldn't want to part with those shocks, would you?
Most likely the engine is tired. No biggie. They are good engines, and should be rebuilt. I usually put in a new pin, piston/ sleeve set, rod, gasket set/ o-rings, head shim and plug. I would also get a Duratrax stage 1 blue head for it (they still make them). Much better then the gray stock one, and was a common hop-up at the time.
In the engine manufacturer part of this forum, there is a guy named Bax that answers the questions about the O.S. engines. Send him a message about getting a copy of the manual for the engine.

alright cool thanks yea i would part with those shocks there good ones but i could get better ones how do you get the conecting rod diconected from the crnk shaft? and i can only get two of the head bolts out of the head do you have any sugestions that i could try to get the other two out?

Are they too tight? Soak them in WD-40 and wait for a while. You don't want to have to grind them off.

yea i some BG spary stuff and i hope this suff works i hear its good stuff so well see what happens