ok, just got two gas cars and a miss lot of mis parts have. i got two ext motors that might show on for the for sell boads laster on with in the next few weeks along with other parts as well.

but what im here for it i need a bit more info on how they run i know there a simple cab motors but the fule system is whats got me puzzeled two lines one off the muffler to the tank and then one form the tank to the cab. why? is it to build presser in the tank to push the gas throw.
the other question it how to the plug stay lite? there is not wire that sets on top or something like a spark plugwire in a car.

cant say much payed 140 for every thing. and i know if clean up and put some money into them i can make back that with just the two other motors.

i think what you have is a nitro rc vehicle not gas by the way you have described it.

you are right abut it using the exhaust to bould pressure to push the fuel into the engine. one line from exhaust to tank. then a second line from tank to carb.

what you are referring to as a "spark plug" is actually a glow plug. it does not use an ignition system like the average car. there should be no wire going to the glow plug. but you will need a glow plug igniter to preheat the plug to get the motor running.

and last word of advice. DO NOT PUT GAS IN IT. it most likely uses nitro fuel like i had stated. take it to a hobby shop or track and ask one of the guys there that know about nitro vehicles about it. i would really hate to hear that you got hurt trying to run gas in it if in fact it is a nitro vehicle.

they are nitor, but to me is gas. i run elc rc and im hopping for the fonding to come throw and i will be starting a shop with a track so would be nice to know a bit about nitor rc cars you know. i main next to all the guy that have them around here and every thing i should pick up it fast. but i dont talk to them out side the trak or the local shop so.

thats is why i asked here.

not one more queson are the pistons and shelves i have some move in and out freely the others get stuck at the stop. is that norm. it is it just needed to be oiled up.

another thing i got 25/75 race fule for a 1/1 scale drage car 25 nitor 75 race fule. would that work by chance? i going to hobby shop to day ways. but thought i would ask. and what to use to clean the motors up with they where not in the best of shape when i got the they are durty.

you cant use 1/1 fuel,nitro fuel for rc cars has a oil in it for lubing the motor while running.if you cant get to a hobby shop just go to amain hobbies or others onlint to order fuel.20% nitro will be a good fuel for you to start with.if the motor is fairly new it is normal for it to be tight olny when the piston is at the top of the cylinder head.you can use any type of nitro cleaner,tipically in a spray form that is also sold at a hobby shop.or if you are in a pinch I also use non chlorinated brake clean or starting fluid found at any local automotive parts store,hope this helps....

Here are some things I have picked up running these.

Cleaning -- go to Walmart and get some Isopropyl Alcohol (the higher the percentage the better), put it in a spray bottle and use that for cleaning the engine and the entire car. Tons cheaper than the Nitro Cleaners.

DO NOT use alkaline batteries for your receiver packs! They do not have the capacity. Use only NiCd, NiMh or LiPo.

What keeps the plug "lit" while running is the heat/combustion of the engine.

Like was said before, DO NOT use that fuel you were talking about. Only use fuel recommended for "Glow Engines".

The sleeves are tapered at the top in order to get compression. These little engines do not have rings. When you shut the engines off, use a finger to roll the piston to the bottom of the cylinder. If you leave the piston at the top of the cylinder is will reduce the "pinch" and the engine will either have reduced power or not even enough compression to start.

If using a pullstart, be sure you do not pull the rope out to the end. If you do that you will likely break the rope. The best way is to use a bump box. These have a motor that is attached to a rubber wheel that makes contact with the flywheel to start the engine.

I hope these tips help. Welcome to the wonderful world of NITRO!! :wave:

i know that now. the bad thing is, is that the tx3.3 motor is eating glow plugs but i think i know why, the crab was way out of tune. going to pick up a plug or two and seen if. it wont eat them this time got the starting specs for this motor. so we will see. any help would be nice thing to know about and all. and a bump box right now is a bit out of my price range so. pull start for now