Honda stalled and won't start

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Feb 18, 2014 | 02:56 AM

#31

merryman

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From: Lancaster England

Pops and bangs indicate the valve timing out. That engine looks a lot like the one in the Fourtrax 250. If it is, there is a known fault with the timing chain tensioner on this engine. It can break, allowing the chain to jump a few teeth. You can only get at the timing marks on the cam by removing the clutch housing, and the tensioner is in there too, so you would soon spot a broken one.

Feb 18, 2014 | 11:04 AM

#32

ATVnoobie

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From: Sycamore al

It only backfires when the starting fluid is used. If I drain the oil I should be able to hear any broken parts right?

Feb 18, 2014 | 02:20 PM

#33

merryman

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I can’t see what just draining the oil will do. If you are sure the carb is OK, the valve clearances are right and you have a spark, the next step is to look inside the engine. You can get the clutch cover off with the engine in place. Watch out for bits falling off when you remove the cover.

Feb 18, 2014 | 02:24 PM

#34

ATVnoobie

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From: Sycamore al

I don't plant on taking it apart, till I get the cdi checked

Mar 21, 2014 | 06:36 PM

#35

ATVnoobie

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From: Sycamore al

I need to know how to set the carb back to its factory setting!

Mar 22, 2014 | 04:13 PM

#36

papa hogg scoot

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From: Notheast Alabama

Pilot setting should be at 2 turns out to start with then do an idle down procedure after engine runs bout 10 minutues..One more question is your starter turning fast enuff? Batt good and hot?

Mar 22, 2014 | 07:31 PM

#37

ATVnoobie

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From: Sycamore al

Ok thanks! A friend told me it has jumped time.

Mar 26, 2014 | 07:19 PM

#38

FarmLifeMS

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From: Holmes County, MS

Quote:

Originally Posted by ATVnoobie

I have a 03 honda 250ex, i was running almost full throttle, it suddenly lost power and was acting like it ran out of gas i turned it to reseve but it didnt help, it came to a stop and stalled, it had half a tank of gas, so i checked the oil, it was really low so i added less than a quart and it was at the right level, i put a new spark plug in it, gas is getting to the carburetor, it's getting a good spark, but it just will not start, I have cleaned the carb and jets to the best of my ability, it ran perfect till now, I have racked my brain to figure this out! Anyone know why it won't start

Have opened the drain screw at the bottom of the carb and let it completely drain? And have you checked your fuses? If ignition fuse is blown or the ignition switch is out, newer models will not crank.

Oct 15, 2022 | 08:06 AM

#39

Fishconsin

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Well did you fix it?

Quote:

Originally Posted by nachop

It is very easy to find TDC. Your machine has inspection covers to view the timing marks and to manually turn the engine over using a socket and ratchet/breaker bar.

did you get it fixed? I have the same problem on same wheeler. I thought i lost compression. Haven't had the time to look at it. This could save me hours! Lol

Oct 16, 2022 | 02:31 AM

#40

merryman

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From: Lancaster England

I would be amazed if it has "has inspection covers to view the timing marks" the 250 Recon doesn't and that is the same basic engine, yes it has one for TDC on the flywheel, but the one for the cam is inside the clutch cover and, as I wrote all those years ago, you can see the broken tensioner when you take off the clutch cover anyway.