Just got back from racing my truck this morning. First run on tarmac was good. Truck starts to move on a little trigger movement on the radio. Got 7mins run time, running it for about half the time on 3/4 throttle in circles. Tires were getting chewed, So moved onto the grass for second run.
This time I turned the main needle valve 1/2 turn CW. Engine started easily on starter. I put the truck on the grass, applied some throttle fast, and the engine just cut out. Set the MNV back to factory, restarted and bashed about on the grass. Found that aout 5 meters away failsafe kicked in and front wheels started moving from side to side very quickly and erratically. Is that what is called glitching? I had coiled the antenna wire around a small piece of cardboard and tucked it away by the steering servo. Receiver responded well when I was on tarmac but not on grass. I thought transmitter batteries were going flat (using dry cells, wasn't sure about voltage given by rechargable cells used in cameras etc.)
Anyway, uncoiled the antenna, and did a range test with engine switched off, and I got good range this time.
While I was trying to figure out what was causing the range and glitching/ failsafe issues, I messed about with the carb settings.
1/2 turn CCW from factory setting gave slow top speed and slow throttle response.
1/4 fCW rom factory and engine cut out while running. I still feel factory setting was best.
Then, with the engine switched off, and taking a break, I completely lost my settings on the carb because I I wanted to see how far out I could turn the MNV. I also removed the air filter so I could seen the valve shaped like a > which gets adjusted by the throttle servo. I tried to turn the LNV CCW to see how far I could get the valve to open. I didn't see the opening get any bigger after a couple of turns, and by then I completely lost the factory setting. So now both MNV and LNV have lost their factory setting. I turned the LNV in, until the top of the head is flush with the tube, and the same for the MNV.
Didn't run the engine yet. The reason why I made such drastic changes is because the engine was getting harder to start after the 3rd run on grass. It just wouldn't start for about 4 to 5 seconds, even though it was being turned over by the starter. How many runs does a glowplug lasts for? I noticed once while starting the engine that if I took off the glow starter, the engine cut out. Happened only once though.
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