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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: JonoK75 on June 21, 2015, 04:58:55 AM

Title: K75RT Won't Start..help please
Post by: JonoK75 on June 21, 2015, 04:58:55 AM
Hi all, I'm going the KBike brains trusty can help me out. . Started the bike. .no problems. . Went for a good 1hr ride parked on side stand and left out for a couple of hours..  tried to start the bike and got nothing. .. checked kill switch. . Bike in start position... all the usual lights on the dash on. .pulled clutch and still nothing. I ended up bump starting the bike to get it home and have read through a bunch of forums to narrow down the issue but have hit a dead end. . So far I have checked all fuses, battery fully charged,  pulled apart the starter motor (cleaned bushes) all seems ok, checked starter relay (connections haven't fused. .looks ok) and checked plugs. .when I try to start the bike. . I can't hear the fuel pump. . Could that be the issue?  Also I can't hear the click of the relay.. any advice would be great the next step is to pass it onto the pro's.. which would more than likely cost a bomb! ! Thanks
Title: Re: K75RT Won't Start..help please
Post by: Inge K. on June 21, 2015, 05:46:11 AM
Check the starter signal circuit:
The connector for the RHS switch assy you find on the right side under the tank.
With ignition on you should have 12V+ at the black/green wire when the neutral lamp is lit or the clutch is pulled.
When you push the starter button you should get 12V+ at the black/yellow wire.

If the previous is OK, check that the signal reaches the starter relay...12V+ at the black/yellow wire.

If also this is OK, check that you have ground signal to the starter relay coil at the brown/red wire.
If no ground, the problem is the ignition ICU at the headstock which grounds the starter relay coil,
but also check in that ende of the wire.
Title: Re: K75RT Won't Start..help please
Post by: JonoK75 on July 03, 2015, 11:29:03 PM
Thanks Inge.K! You're below suggestions helped me find the issue. . It ended up being the clutch switch.. I bridged the connection under the tank and all sorted. . My only other question is. . Now that I've bridged the connection will this cause any issues down the track? ? Thanks Jono