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Discussion Starter · #1 ·
Hey everyone, bike will barely start. Some background info.

Just returned from an epic ride through the mountains of New England. Was awesome. Mount Washington Auto Road = no words to describe! Took 4 days and 1000 miles and the bike ran great.

On the last day of the ride the bike would barely start. What I mean is that it seemed like the battery had just enough juice to start the bike that one last time. The starter would spin just barely fast enough for the bike to catch on. But it kept starting that day, just SEEMED really really weak.

Some background: battery is a new Shorai lithium (LFX14L5-BS12) and it is putting out ~13.5V. Only electrical farkles on the bike is a set of Hyperlites LEDs (which I love) brake lights. I charged the battery for a full week on a wall charger, so I think it is fully charged, and the bike starts the same way.

Has anyone ever run into this before? I am thinking either this battery is bad (which it shouldn't be, it's less than a year old), the starter motor is bad, the charging system on the bike is bad, or there is some kind of parasitic draw on my bike.

Any thoughts? Or troubleshooting I can do to isolate?

Thanks in advance!
Ride safe.
Alex
 

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Well, this wasn't a Shorai, but they might all come from the Battery Factory of Love and Joy in China. Same chemistry, anyway.

Take a few minutes to read through these three posts. You should get some idea of what measurements to take and how to take them, if nothing else.

Battery Kaput
Battery Kaput, Part 2
Battery Kaput, Part 3
 

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By the by, at 13.5V (and not knowing anything else) I would suspect a bad/poor/loose connection somewhere between the battery, the relay, the starter motor, and/or ground.

There's also the possibility of a mechanical issue in the electric start system, which @pdwestman is better suited to speak to.

I think the 'deep-hole' issue was only on the '08s, but that might be worth checking if '09s were affected. If the shaft slips into the hole and comes out of the case side, that could cause a bind.
 

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I think you've covered the bases Tom.
And yes, many of the 2009's do or did have the 'Deep Hole' problem with the alternator cover which could allow mis-alignment of the starter reduction gears.
 

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Cranking problem

Didn't see this mentioned, but what is the voltage at the battery "while-cranking" the starter?
 

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If the OP reads the 'Battery Kaput' series he may come back with several numbers that will be of interest.
 
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