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Old 12-02-2013, 10:12 AM   #1
Silent Panda OP
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2011 990(SMR) won't start w/o jump

I know the rules say to take my SMR questions to Road Warriors but I thought this was specific enough to ask here...

2011 SMR 990 7200 miles
Bike needs a jump to start with either a fully charged LiPo (13.97v) or a fully charged stock battery. If the bike sits for a few hours. I only get engagement out of the starter. The start up sequence is ok and completes but bike acts like battery doesn't have enough ass to start it. Jump starting off of another bike battery is enough to light it off.

I have checked the relays and all fuses. The bike is charging properly when running.

I loaned the bike to a friend that killed the battery and had to have it jumped...issues started then. I have no details about how it was jumped.

I have pulled the fuse from the heat controller and battery tender lead just to be sure there wasn't a draw on the battery overnight. No love. Still needs a jump.

Any hints on where to look now?
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Old 12-02-2013, 10:30 AM   #2
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What is the battery voltage when you start the bike?
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Old 12-02-2013, 11:04 AM   #3
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I have not measured the voltage while jumping the bike...I will measure that.

Or at least try.
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Old 12-02-2013, 01:41 PM   #4
Peanuts
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Have you tried replacing the battery with another one? Totally replacing, not jumping.
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Old 12-02-2013, 01:57 PM   #5
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Quote:
Originally Posted by Peanuts View Post
Have you tried replacing the battery with another one? Totally replacing, not jumping.
I have replaced with fully charged stock and then re-replaced with fully charged LiPo...

I don't think the charging system or battery are to blame. I checked the connections at block, starter, relay...all are solid.
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Old 12-03-2013, 06:31 AM   #6
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Quote:
Originally Posted by Silent Panda View Post
I have replaced with fully charged stock and then re-replaced with fully charged LiPo...

I don't think the charging system or battery are to blame. I checked the connections at block, starter, relay...all are solid.

Is that a fully charged OLD stock battery that's been laying around, or a fresh one?

The fact it starts with a jump may point to a weak/damaged battery. Other issues could rob the little cranking current you have. Such as a worn starter relay, fuses, connections, wires. Any of these could have been hammered during the loan.

I'd go through each of these in detail looking for heat/corrosion.

Put an ammeter in the system and dissconnect/pull fuses on systems to find where the draw is. Try connecting a battery charger with the old fashioned ammeter in it and switching the charger on. Leave your bike switched off. The extra load of the leak (if you have a leak) may show when you pull that fuse etc.
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Old 12-03-2013, 10:00 AM   #7
Silent Panda OP
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Recharged old battery.


I have the same behavior with both batteries. I have jumpered the starter relay to be that wasn't it...I think there is an issue with the starter. Lead batt, LiPo batt, jumpered relay...all give the exact behavior. Basically the starter engages starts to turn the motor over and then disengages.
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Old 12-03-2013, 03:17 PM   #8
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Oh well. Could be starter after all. Couple of guys lately have found that.

I'd just hate you to change the starter only to find it was something further up the line.

Good luck.
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Old 12-08-2013, 04:37 AM   #9
dmn0507
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Quote:
Originally Posted by Silent Panda View Post
Recharged old battery.
An old battery, even if holds the charge and shows 12.5v can be too weak to start the bike, especially with cold weather.
Never tried LiPo batt. but from what i've heard they do not perform well in cold weather (warm up procedure required).

I'd still bet that your problem is the battery, if the starter needs so many amps to turn the engine (onboard battery + jump) it should be really in bad shape or turn into a fireball as soon as you crank it a little longer :-P.

+1 on measuring the voltage while cranking
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