FG MT engine stalls

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rctrucker

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I ran my FG MT yesterday with no issue. I started it up and bashed around in a large field today. Shortly after a roll over, the truck engine stalled. I then attempted several pull-start's without result. I noticed that when I pulled to start, there was no usual resistance. It's the odd smooth pull that I knew it didn't feel right. I checked the spark plug and it still produced spark fire as I pulled.

Can someone please shed me some light of where to check? I'm no where near a certified mechanics.

Thank you much,
rctrucker
 
Try a new spark plug. If it is black you will need to wire brush it clean. A clean plug will have a better spark then that of one that is black.
 
I will get a new spark plug tomorrow, but do you think the "odd smooth" pull to start is due to the black spark plug? I felt no resistance like I usually do.
 
Clean off the head and plug. Take the plug out and stick your finger over the plug hole. Is there any suck or blow.:blush: What does the plug look like? Funny thing is usually you will get it to seize before it looses all compression. You don't see anything like a crack or leak around the head or bottom end do you?
I'm still betting on its flooded out. You could quick try wire brushing off the plug, tip the truck upside down without the plug in and pull it over a few times to release the fuel in the bottom end and retry starting it all over again.

Good luck.:(
 
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I replaced the plug with a brand new one. But before doing that, I stick my finger over the plug hole and I could feel the compressed air blowing against my finger. I also turned the truck over with the spark plug out, put a towel over it and pulled 20 times. There was fuel on the towel. Then I turned it back, put the new spark plug in. Still, I felt like the compression wasn't enough for it to ignite the engine.

Is it possible I messed up the engine and/or the engine ring by running too lean? Time to look for a new engine?
 
not likely, unless it hit hard enough to maybe crack the intake manifold, or the cylinder. i would check the coil gap, it should be set at one business card gap.

you may also have a slightly flooded motor. and believe me when i say, it would likely be easier to talk the wife into a 3some with her hot sister than it would to get a flooded motor to start. lol

go thru the unflooding process, check the coil gap and see what happens
 
All of the above has been tried. I turned the truck upside down, took off the sparkplug with a towel over the hole and pulled for 20 times. The engine doesn't seem to have enough compression. What else should I try before I order the kit above for engine ring replacement?
 
if your sure its not flooded (sounds like you illiminated that possibiity) start looking close around the cylinder gasket. you may have a broken/blown clinder gasket.

compression is hard to "JUDGE" on these motors. i take it you put a new plug in, and checked the coil gap. you check the kill switch and make sure your getting spark?

if all that checks out, then i would pull the motor out and start a closer inspection.
 
A friend was driving the truck and it was rolled over hard. About a minute or two after that rollover, the truck engine stalled, so very possible that something like a cylinder gasket was broken.

Is it possible to work on the engine without having to take it off of the truck? I removed the pipe and the engine top cover so far and that looked like a possibility.
 
The plug was dry when removed. I haven't touched the inside of the cylinder yet. I only opened the cover so far and the fins are now exposed. I'm not sure how to proceed from there so decided to take a break for tonight :)
 
If the plug is dry inspect the fuel lines. If you are pulling and pulling and there is spark but no start then the plug should be wet. You have a fuel problem. maybe the fuel line was cut or pinched somewhere. When the motor stalled did it rev up right before it shut down? If so it probably ran out of fuel. Check the fuel primer bulb is there fuel in it?
 
I see. But even with no fuel, how does that cause the light compression upon the pulls? It's still notchy, but a lot easier to slowly pull without using much strength.
 
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