Ignition problem need help

[cliffno350]

heres the problem the front cylinders arent firing, and the tach quit I pulled the conector on the left side to the pickups and have 126 and 128 ohms on the gray and orange and 129 on the w/r and w/g to black. did the conector cleaning and pulled the tci and the solder joints are all bright and no cracks. bike has been in side for three months, anyone got any ideas? I dont have a spare.

[cliffno350]

still need any ideas

[Squeeze]

Didi you check the Power Supply to the Coils ?

 

Should be a red/white Wire to the yellow Connectors of the Coils.

[cliffno350]

I think I have power to them though as the back two are cool to the the touch and the front two are so hot you cant touch them after less than five minutes running on back two cylinders and still no fire to the plugs on front two.

[Eck]

My..

Front coils are bad..

Others will chime in..

HEY JEFF,

Where the heck are you when fellow brother neds help...

Quit showing off your new PINK outfit and help this guy..

[mm482]

Coils will be warm to the touch under normal operation. If the front coils are getting hotter than the rear coils, it is because their primary circuit to ground in the coil is not being interrupted. When the primary circuit to ground is interrupted, the magnetic field collapses into the secondary circuit of the coil and exits the coil wire to the spark plug. The coil will have a short time to cool, and then it starts all over again. If the ignition system doesn’t interrupt the voltage going through the primary, the coil will get so hot is will self destruct. I would guest you have a bad crank sensor or bad TCI.

Earl

[GeorgeS]

Check the resistance thru the 40 amp main fuse ( open it and tighten the two small allen head screws )

 

Check the resistance thru the Ing Switch , On - OFF contacts.

 

Check the resistance thru the Engine Kill Switch on rt. handle bar.

 

Pull pig tails from the coils, make sure there is 12 volts on each R/W wire, at the coil.

 

Clean the 2 pin plugs going to each Coil. ( I think they are yellow )

 

Use Electrical contact Cleaner, and give the Ing. Switch and the Kill switch a bath, and blow out with compressed air.

 

I assume it was running OK, when you parked it ???

 

IF so, try 1/2 can of Sea Foam in the gas. Its worth a try.

[cliffno350]

tci I guess bad want to check a couple more things but that makes sense the front coils not being interupted making them get hot.

[cliffno350]

Yes was running well when I parked it and had done "most " of the thing you mentioned, how ever I remembered that a budddy of mine has a parts bike parked behing his barn and the TCI was still in it and I grabbed it and put it in mine and bam that was it runns like it is supposed to. so now in the market for ntm TCI caouple on ebay Ill watch

 

Thanks everybody was about to have an issue......

[mm482]

Good to hear you found the problem.

 

Earl

[Dano]

You might send the 2 guys on ebay a message and see if they'll give you a buy-it-now price. I saw them 2 and thought they looked pretty good.

Good luck, Dan

[cliffno350]

I think I saw a guy on here that rebuilds TCI if he could post here and or pm me Ive got one that needs repair,

 

Thanks Guys