Help with my 84 250r it's shutting off

[Jesse'sGirl]

Hey guys, I'm having a problem my 84 r is shutting Off when it gets hot after riding it for 30 mins, what to do?

[30rack]

Does it run correctly and consistently?

Are you able in any way to replicate the shutting off issue? such as a throttle range, gear, something?

Are the engine and carb set up correctly?

[3wheelerfan1991]

Sounds like electrical to me.
I've had issues with coils before. After it gets hot, it sputters, goes slow, then dies.

[Jesse'sGirl]

it doesnt sputter when it shuts off, it kinda just dies.
about the shutting off, i hav'nt went out for that long of a ride yet, but im hoping to go tonight. im not sure if the carb is set up 100% but im pretty sure the enginne is.. as for i did all the work myself, and the only thing is that my 5th is not working also. i was pretty sure it was all right. ill also post a picture of my spark plug. theres a DG fatty and a stock can, is that ok to run. is there a differents in the jetting or fuel? i have the stock pipe too but its cracked atm.

[RIDE-RED 250r]

Make sure the fuel tank vent is clear. If not, as fuel is run out of the tank enough vaccum builds to cause fuel flow to stop

[Jesse'sGirl]

yes its clean.

[atc300r]

I run a Cobra headpipe with the stock silencer on my 83 250r/300r.It runs great .

[Jesse'sGirl]

Alright, should it sound like it has a cam when idling?

[yaegerb]

If you did all the engine work yourself you will need to tell us about it. What is the compression, are you using aftermarket reeds, any carb upgrades, etc.

[Jesse'sGirl]

It's all stock as far as I know, it's bored over 6th and I put new crank bearings and seals in.

[RIDE-RED 250r]

yes its clean.

Ok, if you don't have a fuel supply/metering problem then it's likely you have an ignition problem.

How long do you have to let it sit before it will run again?

[Jesse'sGirl]

Well I just went for a ride and after 45 mins, on the way home it die. And I had a bottle water with me and I put it on the motor and then it started. The time before that I let it sit for 10 mins or little longer. I'm gonna go try a different stator, I don't, have another coil. What do u mean by fuel supply metering problem?

[Jesse'sGirl]

My airscrew is at 1 1/8 and my needle (clip) is in the middle, i also just put a new carb kit in. Br8es Is the right plug too be running right?

[Jesse'sGirl]

here also the picture of my plug.

[RIDE-RED 250r]

Well I just went for a ride and after 45 mins, on the way home it die. And I had a bottle water with me and I put it on the motor and then it started. The time before that I let it sit for 10 mins or little longer. I'm gonna go try a different stator, I don't, have another coil. What do u mean by fuel supply metering problem?

By fuel supply I am referring to a problem with the fuel tank valve, vent, needle and seat and/or float in the carb not letting fuel in from the tank.

By metering, I am referring to proper float adjustment or if the float is sticking. If the float height is too high or the float is sticking it could cause it not to let enough fuel in for the gnein to keep running. Basically the fuel suply can't keep up with what the engine is consuming and eventually running low enough for the engine not to run.

Sparkplug pic is a little fuzzy, but if it's kind of gray in color you are too lean. I can't really put my finger on if it is mainly black or if it's kind of grayish. But the fact that cooling the engine with water made it run again suggests you are overheating it. Very possibly due to a lean condition.