Hey gang,
Ran on a great dirt track today, the temp was 93 and the humidty could kill a full grown man. The cars ran great early and then after a few laps started dieing. I tried to richen them up a bit and they simply would not run. As soon as they started this I chenged filters (well oiled) and tried again, but no luck. They would run great early and then started giving me trouble. Any tips on riching/leaning the motors? I donot want to burn them up, but unlike my boats which all tell how many turns out from factory the needle setting is, the JAto does not. Any pros have time to give a newb some tips on how to rich/lean the motor and how to check it before a run to ensure I have it right?

Thanks,

LRT

Try changing your gloplug
-OS-

Even if they start with no issue the glow plugs can still be the culprit? I thought they were only for starting. After some adjusting I have the wifes running great, but mine will not idle. It will start and run for 5-8 seconds and die. This is at any throttle setting. This can still be a glow plug issue? The whole lean/rich thing has me baffled. I know what the factory preset adjustment on the high speed needle is now, it is 4 turns from full tight, abd I set it back to this adjustment, but still no idle. There was one thing that concerns me though, after about 5 jumps I noticed a piece of plastic sticking out from under the body cover, it ended up being the air filter, which I quickly put back on. Could there be something (dirt, dust) in the carb now that is blocking the flow of fuel? If so how is the best way to remove something such as this? I guess I will take it into HobbyTown tomorrow and let them take a look at it, but any additional info on setting the carb would be appreciated.

LRT

Yes the glow plug is a spark plug on a glow engine. For the dirt and dust i would remove the motor and take it apart thoroughly with WD40. Lean means that the motor is getting ore air than fule. Rich means that there is more fule that air getting in ( This is better than running lean). Do you have a temp gun?
-OS-

Not a temp gun, but a temp probe that is very sensitive. It is on my multimeter and detects temp changes when the wind blows. This may not be the best thing to use after reading allot of the threads, so to Hobbytown I go tomorrow to get a lazer temp gun to check it out, as well as stocking up on new glow plugs. I was going to vpurchase 2-4 new plugs last time I was there but they were out and told me just to use some of the new ones I have put back for my boat, but the connector on the jato will not fit on top of my boat plugs. Will replace (If they have them in) and test tomorrow.

LRT

Also just to note that in the 20 or so tanks I have ran through I have left the high speed needle at the factory setting. When it started dieing today I adjusted to richen it up a bit, about 1/2 turn in and then back to factory. After it started giving me problems running I shut it down and brought it to the house. I do not want to fry my motor, so I may take the car and all to the LHS and let them see if they can get it idleing good again. How do you know if a motor is fried?

LRT