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Author Topic: Trouble starting - Power loss - Cut off  (Read 3752 times)
a_morti
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« Reply #15 on: October 02, 2017, 09:04:36 AM »

Considering you've just had a dead battery, I'm going to go with charging system, as over voltage can fry them while under voltage can leave them dead too. Cdi could also be gone, but if so then as a symptom of charging system.

This is going to require some actual mechanic work to solve. GET A MULTIMETERS and diagnose it properly before swapping out parts and hoping again. Like I mentioned way up there.
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titsonfish
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« Reply #16 on: October 07, 2017, 07:20:46 AM »

Thanks for the advice. Got a multimeter now and commencing the checks on all wiring. Nothings worked up till now and it's made ever more difficult that the problem is sporadic.
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Dash
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« Reply #17 on: October 07, 2017, 07:29:02 AM »

Thanks for the advice. Got a multimeter now and commencing the checks on all wiring. Nothings worked up till now and it's made ever more difficult that the problem is sporadic.

Those issues are the worst. You'd almost prefer the crankshaft smashing through the cilinderwalls. At least then you know what the issue is. Electric gremlins are the worst.

Good luck man.
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titsonfish
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« Reply #18 on: October 10, 2017, 04:48:01 PM »

Problem solved (time may yet prove me a liar, but all has been going well for a couple of days) turns out it was corrosion of the kill switch connectors which caused it to sporadically activate and earth the electrics through the frame of the bike, causing rapid power loss and random shut off of the engine.

Hope this helps others.
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a_morti
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« Reply #19 on: October 10, 2017, 06:27:19 PM »

Good find!
I once unearthed a dead spider from same location which had been causing an intermittent circuit. Took a while to find that one.
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RVFRick
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« Reply #20 on: March 31, 2018, 09:21:55 PM »

Ok wanted to give an update. After bypassing the cut off switch, changing batteries, extra cables, grounds and a new LT4 starter I still had the trouble. Got a tune for the car and it has yet to not start since, Even if the battery is weak and is draggy cranking it will still start in a couple spins. After digging in the old tune the injectors were set on 42lb, However I have 36 lb. Now it makes sense. The PCm may have not fired the injectors enough for starting if set like this, but I may be wrong. Either way it starts and runs good now. Thanks

Injectors? Surely you aren't talking about a normal CB-1.
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Dash
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« Reply #21 on: April 01, 2018, 08:45:20 AM »

Did someone shove a Hornet engine in there? Injectors didn't excist back when the CB-1 was born  Grin
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a_morti
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« Reply #22 on: April 01, 2018, 11:31:43 AM »

Ok wanted to give an update. After bypassing the cut off switch, changing batteries, extra cables, grounds and a new LT4 starter I still had the trouble. Got a tune for the car and it has yet to not start since, Even if the battery is weak and is draggy cranking it will still start in a couple spins. After digging in the old tune the injectors were set on 42lb, However I have 36 lb. Now it makes sense. The PCm may have not fired the injectors enough for starting if set like this, but I may be wrong. Either way it starts and runs good now. Thanks

Injectors? Surely you aren't talking about a normal CB-1.
Every post he's made is nonsense then he hits us with a link to a non relevant FB page. He can take a walk.
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