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Hard starts

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Old Sep 7, 2016 | 05:12 PM
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Default Hard starts

I have brand new Harley stock plugs in my 2010 Street Glide and I have a brand new Harley Davidson battery. I also plug the battery into a tender every night.
I'm a big proponent of plugging the battery into a tender every night. Once on a previous Honda I was at a restaurant and left the key on for 90 minutes. I thought I was going to be stranded. The bike fired right up.
Anyway, I was having hard starts before replacing the battery and spark plugs. I thought new hardware this would solve the problem. I rode almost daily and it can occur intermittently or multiple times in a day.
Has anyone else come across this problem and found a solution? I did buy the bike used from a guy this past June 2016. He was negligent on maintenance, but I believe I've got everything up to snuff.
 

Last edited by EdsRoadGlide2017; Sep 8, 2016 at 07:57 AM. Reason: Just so it reads more clearly
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Old Sep 7, 2016 | 06:59 PM
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Acr's or lack thereof, failing compensator, weak starter would be my initial assumptions.
 
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Old Sep 7, 2016 | 07:06 PM
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I have had a couple of hard starts in what I call hot weather 90 plus. Stopping for gas it sometimes turns over like it is looking for fuel. My buddies did the exact same thing three weeks ago as we rode along the west coast. It only does it to me when it is really hot. I think the fuel is vaporizing in the fuel bar between the cylinders when I stop the engine. If I give the throttle a little twist as I hit the start button, problem goes away
 
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Old Sep 7, 2016 | 07:17 PM
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Define 'Hard Starting'..

Does it just turn over and cough/or not??

Or does it barely turn over, and thunk?
 
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Old Sep 7, 2016 | 07:23 PM
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What new hardware? Battery and plugs?
 
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Old Sep 8, 2016 | 07:47 AM
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Originally Posted by nfe
Define 'Hard Starting'..

Does it just turn over and cough/or not??

Or does it barely turn over, and thunk?
It turns over strongly and coughs. It just seems like it's having a hard time "catching" to start.
 
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Old Sep 8, 2016 | 07:48 AM
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Originally Posted by themensh
What new hardware? Battery and plugs?
Yes, that's all I meant. Battery and plugs.
 
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Old Sep 8, 2016 | 07:55 AM
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Originally Posted by Salmo pass
I have had a couple of hard starts in what I call hot weather 90 plus. Stopping for gas it sometimes turns over like it is looking for fuel. My buddies did the exact same thing three weeks ago as we rode along the west coast. It only does it to me when it is really hot. I think the fuel is vaporizing in the fuel bar between the cylinders when I stop the engine. If I give the throttle a little twist as I hit the start button, problem goes away
Mine has done it early in the morning after sitting all night and throughout the day. Thank you for your reply.
 
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Old Sep 8, 2016 | 08:23 AM
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Check ground wire, Don't know if it applies to yours, but my 97 did that, was corroded ground wire
 
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Old Sep 8, 2016 | 09:20 AM
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That's what my '09 was doing (@ 15k miles) especially on hot starts before I replaced the compensator. Ron
 
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