Intermittent starting problem - Wrist Twisters
 
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post #1 of 13 Old 09-22-2008, 08:53 AM Thread Starter
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Intermittent starting problem

This morning I left for work on my 919 stopped and filled the tank then rode about 7 miles and stopped for breakfast when I came out the bike would turn over but not start. I checked the kill switch. I tried it with the kick stand up and in neutral with the clutch in. The battery seemed to be fully charged. I cranked it several times until the battery drained. Called the wife and she brought the truck, ramps and straps. Got home and hooked it up to the battery tender and after just a couple minutes it fired right up.
Once before I went to start it after getting gas and it would not start right away. But that time it did finally start before completly draining the battery.
I don't know if it is just a coincidence that I've had this happen twice only after getting gas.

Any ideas?

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post #2 of 13 Old 09-22-2008, 08:58 AM
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did you hear the fuel pump when you turned the key on??



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post #3 of 13 Old 09-22-2008, 09:12 AM
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good qustion. and did it atempt to fire or just spin?

2007 CB919 37 mi Aug 20 2008
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post #4 of 13 Old 09-22-2008, 09:23 AM Thread Starter
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Yes I did hear the fuel pump and it would not attempt to fire only spin. Then once I got it off the truck and hooked up the battery tender it started normally.

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post #5 of 13 Old 09-22-2008, 12:34 PM
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Quote:
Originally Posted by hawkeze View Post
This morning I left for work on my 919 stopped and filled the tank then rode about 7 miles and stopped for breakfast when I came out the bike would turn over but not start. I checked the kill switch. I tried it with the kick stand up and in neutral with the clutch in. The battery seemed to be fully charged. I cranked it several times until the battery drained. Called the wife and she brought the truck, ramps and straps. Got home and hooked it up to the battery tender and after just a couple minutes it fired right up.
Once before I went to start it after getting gas and it would not start right away. But that time it did finally start before completly draining the battery.
I don't know if it is just a coincidence that I've had this happen twice only after getting gas.

Any ideas?
Did it in fact fire up but only turn a couple of revolutions and would not sustain running? Mine does this when the air temperature falls below 50°F. It is very, very cold blooded? What was the air temp when you tried to start it the first time? ...and what was the air temp in your garage after you charged the battery?

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post #6 of 13 Old 09-22-2008, 12:47 PM Thread Starter
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No it never fired, only spun. Temp was 65. I thought it may have been flooded so I tried starting with the throttle open, without any luck.

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post #7 of 13 Old 09-22-2008, 07:17 PM
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Was the "spin" speed slower before hooking up to the battery tender?

If so, then you may have a bad battery.

BTW: This bike is fuel injected so opening the throttle has no effect until it starts, which will result in some high rpms if held.

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post #8 of 13 Old 09-22-2008, 07:55 PM
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Quote:
Originally Posted by karlb63 View Post
Was the "spin" speed slower before hooking up to the battery tender?

If so, then you may have a bad battery.

BTW: This bike is fuel injected so opening the throttle has no effect until it starts, which will result in some high rpms if held.
+1
How old is the battery ?

-Mark-
There's gold in them hills
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post #9 of 13 Old 09-22-2008, 07:59 PM
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Recent thread....sounds real similar and ended up being the battery

https://www.wristtwisters.com/forum/s...ighlight=start

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post #10 of 13 Old 09-22-2008, 08:35 PM
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You have a PCIII on it?

A few guys on Fire Blades had the same problem. The PCIII was the cause.
They had to open the throttle and bump the starter to get it to fire.
This technique wasn't always successful.

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post #11 of 13 Old 09-22-2008, 11:31 PM
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Mine has done this with the previous PC3 I had. I say previous cuz I have had 4. The 4th one was a winner!


stories:

https://www.wristtwisters.com/forum/s...ead.php?t=6899
https://www.wristtwisters.com/forum/s...ead.php?t=3924
https://www.wristtwisters.com/forum/s...&highlight=pc3

I am sure I could find more with time.. but you get the idea.

- Rev. CYCHO -

tires.... it's what's for dinner!
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post #12 of 13 Old 09-23-2008, 05:44 AM Thread Starter
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The spin speed was normal for the first several attempts to start. It seemed like a strong battery to me. It is an 06 and the first owner must have let it sit alot because it only had 694 miles on it when I got it this past April so it could be a bad battery but it sure cranked the engine many times before it died. This morning it started fine and I rode to work.

No PC on my bike either.

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post #13 of 13 Old 09-24-2008, 06:04 AM Thread Starter
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It started fine after work yesterday and this morning. The battery seems strong to me, but like I said the previous owner didn't ride it much so it must have sat alot. And I just put a lead on it for the battery tender Monday. It seems odd that the only times I've had a problem is after I got fuel though.

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