Now it won't crank By mrtjet (Read 384 times)

[mrtjet]

I was working on getting my 2007 jmstar 250 started yesterday. All the lights work. It was cranking fine.now it won't crank at all unless I jump across the starter seloniod. The brake lights work. I held the front brake while cranking it. I have noticed a yellow wire with a round connecter near the front brake lever. When I ground the plug with the key on and jump across the starter seloniod it cranks but no spark. Ignition coil is my guess. I don't want to keep buying parts until it finally has spark. I have it on the center stand. I even took the two wires off of the starter button and touched them together while holding the brake, nothing. It was cranking fine at the beginning of all this and then it just stopped cranking again unless I jump across the seloniod. I'm thinking and hoping that yellow wire has something to do with this. Help please and thank you. Ed.

[jct842]

My first boss had the answer for that.............go back to the last thing you did before that happened. I am going on 74 years old by the way.

Go to our library, scroll down on the home page. You will find generic diagrams. You need to have a multi meter and test light and know how to use them. I would be very careful about blindly grounding things too. If you get to reading here there have been discusions that have diagrams on how the starting circuits work. When the brakes are on is the only time the start button can work, so you need to trace the wires on it to the solenoid. And be sure all plugs are firmly still connected.

[mrtjet]

That's the strange thing about it. All I did was turn it on and crank it. I stopped went to do it again. And it doesn't crank. I do know that when I got the bike I had to connect the wires to the start button so maybe something else came loose near that. I even touched those two wires together but no go.

[cyborg]

Jun 14, 2016 11:32:49 GMT -6 mrtjet said:

That's the strange thing about it. All I did was turn it on and crank it. I stopped went to do it again. And it doesn't crank. I do know that when I got the bike I had to connect the wires to the start button so maybe something else came loose near that. I even touched those two wires together but no go.

Either the solenoid control power went away or the solenoid itself may have went bye bye,,, try running a jumper from the battery to the control "hot side",,, if it turns over you know it's the control wire

[cyborg]

That would be the positive side,,, but you knew that already,,,

[cyborg]

Or pop a fuse?

[mrtjet]

How would I go about bypassing the kill switch on the handlebars? Solder the two wires together? Or cut them from the switch and tape the ends? If I get this thing to crank again there is still the lack of spark. I'm sure that will be another lovely thing to figure out. I would love to ride this thing. Can't wait to get better mpg's then the 14 my Silverado gets.

[mrtjet]

I got my jmstar 250 to start and run. Took it for a few laps around my small yard. What fun but i noticed it was running hot. I parked it and noticed it was leaking coolant. Went to turn it off, turned the key and it kept running. To get it to run I cut the green wire on the kill switch. And then jumped across the seloniod. I thought the kill switch was grounded not letting the starter turn and killing the ignition. So I cut the green wire on the kill switch. Now it runs if I jump the starter seloniod. But I can't turn it off. I pulled the plug wire off, that stopped it. Can someone point me in the right direction? That you Ed

[cyborg]

Sounds like either the kill switch is faulty and grounding out inside or a wire for it rubbed thru and its grounding in the harness,,the kill switch is a normally open switch,,,when you push it or turn it it completes the circuit to ground,,,,

[mrtjet]

That's why I cut it. But now I have to jump the seloniod slot start it and pull the plug to kill it. I'm sure your right it's time to pull some plastic off and start looking. Cyborg thanks for your help and all the others that chimed in!? Ed

[cyborg]

I'm afraid you are correct,,,time to investigate