I have a CEN Racing Nitro RC Truck (Fun Factor ST). I have replaced the engine with a High Proformance engine that a friend no longer needed. I left nitro fuel in it for about 3 months, its 20%. The truck will idle for a short period of time and the low speed and high speed adjustments haven't been touched at all, they have been triple checked to be at factory settings. However it will idle but knock off, could I be using the wrong fuel, I did see a picture of a plane on the bottle, and its a generic brand and its red if that matters. Can anyone help me figure out what happened and how to fix my truck? If I can't fix it, anyone wanna buy it (2 engines total) :)

Needing Help,
~PCTech

Do you have a pic of this truck ?

I really want to see one please ;)

I'll get one taken after I get home from work, I have an old IBM webcam that might do an okay job. :)

Isn't it bad to leave fuel in there for 3 months? Other then that, I don't know. I've only built electric one's.

Not to worry about the truck....clean the carb and engine with denatured alcohol and you should be ready to go after a couple of tanks of FRESH fuel. Blue thunder racing fuel is rather good.

Thanks
Dudelive

Well everyone, I took my truck over to a friends house, and after about 15 minutes of tweaking and cleaning we poured some blue thunder 10% in there and it fired right up! ran really piss poor for the first tank and a half but after some clutch adjustments and some throttle tuning it runs fine, I just gotta buy the front drive shafts for the right and left axles! I broke them off last year and it went from 4wd to 2wd! So that would make it lots faster if all 4 tires turned at the same time! I'm going racing today, hopefully I wont tear it up!

Let there be fun,
~PCTech

Glad to hear you have that thing running again. I had an electric one long ago. It was called the Frog, cost me $100 and I built it myself. Never seen so many parts for such a small unit. Had lots of fun with that thing. The cost of parts made me sick.

This picture is what mine looked like, but it's not mine.