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Post by joe on Mar 1, 2017 19:41:38 GMT -6
Alright, need some help from the pros. Fired up the bike after sitting idle a few weeks, fired right up and idles great. Let it warm up a bit and bliped the throttle it revved up hesitated then died. Pushed start and nothing, tried a couple more times and it fired up. Did this a few times and finally it just quit. It's definitely electrical. Jumped the starter solenoid and it cranks. I read through some old posts and bypassed all the safety switches by grounding the brown/white wire from the ignitor box straight to the frame. I'm lost when it comes to electrical stuff, i used the multimeter and poked at some wires to measure resistances. Seems like the start switch and kill switch are working properly as pushing them off and on is changing the continuity. Any advice would be awesome thanks
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Post by joe on Mar 2, 2017 18:44:58 GMT -6
So after studying the wire diagram for a while and doing some google-ing i bypassed the start safety switch (the one in the clutch handle) and sure enough she fired right up. Tested it a few times with the jumper then permanently spliced the wires and all was working. Fired her up let it idle then when i revved it up, same deal, it just died and once again pushing start does absolutely nothing, no clicks, nothing. Next step is to bypass the start safety relay. I don't really see a point in having a relay to activate the solenoid anyway. Any thoughts here guys?
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Post by joe on Mar 2, 2017 20:05:56 GMT -6
Just bypassed the starter relay and bam, fires up. Then it died and once again pushing the button does nothing. Any chance the ignitor might be on its way out? Would that prevent the bike from cranking? It'll idle all day but as soon as you give it gas it craps out. I don't know if it's a vibration issue or voltage increase or what.
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Post by Blaine on Mar 2, 2017 21:48:51 GMT -6
Just bypassed the starter relay and bam, fires up. Then it died and once again pushing the button does nothing. Any chance the ignitor might be on its way out? Would that prevent the bike from cranking? It'll idle all day but as soon as you give it gas it craps out. I don't know if it's a vibration issue or voltage increase or what. Possibly the ignitor.....That would be my guess. |
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Post by joe on Mar 3, 2017 19:55:29 GMT -6
It must be the igniter box. I bypassed all safety switches pulled a plug, jumped the starter solenoid (wires from the start button not arcing the starter motor terminals) and no spark. There's one wire that runs from the kill switch into the igniter so that explains why the start button does nothing. Plus whether the box is plugged in or not the headlight and dash lights will still come on. I tested the leads on the box and I'm not getting the readings the manual calls for. After looking closely at the igniter it's obvious the po had it apart at some point. There's silicone and broken plastic all around it. After opening it up i see he gooped some kind of caulk on a large portion of the circuit board (that's going to be fun to clean up) i guess I'll attempt to repair it before throwing in the towel and trying to find another.
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Post by joe on Mar 5, 2017 15:56:05 GMT -6
So after all that confusion it ended up being a loose ignition switch (the guts in the plastic housing) i never got a key with the bike so everything was bypassed and the plastic ignition housing was stuffed into the headlight bucket. I guess the vibration rattled something loose. Lesson learned, continuity readings are great but make sure to check for voltage (duh). I'm still not sure if the ignitor is ok though, all the pin readings the manual gives you isn't jiving with the box so after i wire up my new under seat ignition switch we'll see what happens
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Post by joe on Mar 5, 2017 17:36:40 GMT -6
And success! Ignitor box is fine. Not sure how since almost none of the pin values match the service manual but whatever. Also noticed that since this bike has a slow coolant leak at the pipe running into the valve cover if it sits for days and you don't clean the plug before firing it up the little bit of coolant in the cylinder instantly fouls the plug, maybe that could help the next guy who starts a 'one cylinder won't fire' thread
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Post by Blaine on Mar 5, 2017 18:43:56 GMT -6
And success! Ignitor box is fine. Not sure how since almost none of the pin values match the service manual but whatever. Also noticed that since this bike has a slow coolant leak at the pipe running into the valve cover if it sits for days and you don't clean the plug before firing it up the little bit of coolant in the cylinder instantly fouls the plug, maybe that could help the next guy who starts a 'one cylinder won't fire' thread Simple to change to o-ring on the coolant pipe......14mm. |
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Post by joe on Mar 6, 2017 5:12:33 GMT -6
Yeah i read that in another thread i just need to stop being lazy and do it
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