JDX8 wont start

JDman21 · Post by **JDman21** » Mon Feb 19, 2007 6:27 pm

My carb is clean and has a new kit in it. I have good spark at plugs. Plugs seem to be getting wet, so it must be getting gas, but it wont even fire. Im lost Any ideas?

Danzig · Post by **Danzig** » Mon Feb 19, 2007 7:43 pm

Do you have spark at the plugs?

JDman21 · Post by **JDman21** » Mon Feb 19, 2007 7:48 pm

Danzig · Post by **Danzig** » Mon Feb 19, 2007 7:55 pm

What color is the spark?

JDman21 · Post by **JDman21** » Mon Feb 19, 2007 8:18 pm

The spark is more of a blue. There is a little orange, but more blue. A while ago my battery was running low and I had the battery charger on it. When It pulled them off I hit something and every since then my electric start doesnt work without putting a battery cahrger on it. Right after I put the charger on it works though.

Danzig · Post by **Danzig** » Mon Feb 19, 2007 8:23 pm

How is the fuel filter?

JDFanPa · Post by **JDFanPa** » Wed Feb 21, 2007 4:26 am

compresion???? good spark+gas and no fire

eppjd · Post by **eppjd** » Wed Feb 21, 2007 10:47 am

Did you try putting some fuel down the plug holes (not a lot), it should fire if there is spark.

JDman21 · Post by **JDman21** » Wed Feb 21, 2007 9:03 pm

I had about 120psi in both.

harleysportster · Post by **harleysportster** » Wed Feb 21, 2007 10:13 pm

Did you check the exhaust for a blockage.

JDman21 · Post by **JDman21** » Wed Feb 21, 2007 10:46 pm

Changed lines and carb spacer. Got it to fire a couple times, but really no luck. I would hit the gas and nothing would happen.

HoosierDeereMan · Post by **HoosierDeereMan** » Thu Feb 22, 2007 3:58 pm

Can you give us some history on this sled? Is this a machine that you had running in the past or is this one that you just bought and put a carburetor kit in prior to running? This is just from my own experiences, but it seems that the setting the book gives for the idle circuit never applies to me. I think on the Walbro it tells you 7/8 or 1 round out. I don't remember exactly. From your earlier post I had a similar problem. I had the idle circuit set too rich. I would choke it and pull my guts out and the engine would never hit. I removed both plugs and turned the key off. Make sure the key is off or the spark will ignite the gas soaked rag! I put a rag over both spark plug holes and pulled the rope 3 or 4 times, this blew all the gas out of cylinders. I reinstalled the spark plugs, pushed the choke in, turned the key on and held the throttle 1/2 open. Pulled again and it would start. It would run fine until it loaded up again. Pumping the throttle would cause it to die. I had it set too rich. I had to turn the idle circuit in 1/4 of a turn at a time repeating the same steps until I could get it to run. I think in the end I was maybe 1/2 to 3/4 a round out on the idle screw. Another clue to my problem was that I had 2 cycle gas leaking at every exhaust joint and out the muffler. If you do get it running make sure to check the color of your plugs after a little run.

JDman21 · Post by **JDman21** » Thu Feb 22, 2007 8:32 pm

I think I've had the sled for 4 years. 1st year ran good. 2nd year never ran good at all. Last year after I got it working good it worked great. This year got in out got it running great. Probably the best it ever ran for me. But no snow so I put it away for a month or two and got it out again and wouldnt start. All my problems Ive always had were carb problems. Except between my 2nd and 3rd year I swapped engines because of crank shaft seals. The engine that was in it wasnt the stock JDX8 motor and the one I put in is.

JDman21 · Post by **JDman21** » Thu Feb 22, 2007 10:16 pm

There is some oil on the exhaust side of the engine. That cant be good. I took the exhaust manifold off to see if it would start maybe the exhaust was plugged. It didnt start.

HoosierDeereMan · Post by **HoosierDeereMan** » Sat Feb 24, 2007 4:59 pm

What year is your JDX-8 and what engine does it have?