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 Post subject: S1 won't idle
PostPosted: Fri Sep 09, 2016 10:59 am 
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I initially thought it was the carb, cos the pilot air hole was filled with oil that had dribbled out out from around loose breather bolts. Anyway, sorted that out but it still won't idle consistently. It will for a few seconds, then it'll pop and bang and die. I've noticed that when it's misbehaving the rev counter is flicking around, shooting up to 3k then back down again. Should I be looking for an electrical problem, rather than a fuelling problem?


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 Post subject: Re: S1 won't idle
PostPosted: Fri Sep 09, 2016 7:28 pm 
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Bonzo wrote:
I initially thought it was the carb, cos the pilot air hole was filled with oil that had dribbled out out from around loose breather bolts. Anyway, sorted that out but it still won't idle consistently. It will for a few seconds, then it'll pop and bang and die. I've noticed that when it's misbehaving the rev counter is flicking around, shooting up to 3k then back down again. Should I be looking for an electrical problem, rather than a fuelling problem?

There's a clue in there somewhere... ;)

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 Post subject: Re: S1 won't idle
PostPosted: Sat Sep 10, 2016 1:32 am 
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rik wrote:
There's a clue in there somewhere... ;)


lOl Yes, I realise that. What should I be looking for and where :?:


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 Post subject: Re: S1 won't idle
PostPosted: Sat Sep 10, 2016 6:39 am 
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I seem to have made it worse now. Cleaned all the connectors that looked a bit dodgy, now I'm not getting a spark at all :headbang:


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 Post subject: Re: S1 won't idle
PostPosted: Sat Sep 10, 2016 8:15 am 
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I have the manual, doing the idiot proof testing bits (mostly continuity, I can do that lOl )

Tested the coil resistance as per the manual - both primary and secondary coils in normal operating range.

Long plug cable resistance 7170 ohms - ok
Short cable - 6000 ohms, not OK, should be 1625 to 3796 ohms.

So I need a new short cable, but I wasn't getting a spark on either plug :sad1:


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 Post subject: Re: S1 won't idle
PostPosted: Sat Sep 10, 2016 8:43 am 
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Take both leads to the local Harley shop, they will have Sportster ones that will fit. Probably a few dollars I guess.

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 Post subject: Re: S1 won't idle
PostPosted: Sat Sep 10, 2016 9:18 am 
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03 wrote:
Take both leads to the local Harley shop, they will have Sportster ones that will fit. Probably a few dollars I guess.


Yes, I will, but unfortunately bike shops aren't open on saturday afternoons over here (regulations :roll: ) lOl

Anyway, I put the coil and leads back on, and it fired up, it's even idling, no tacho flickering either :shock: :dance:


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 Post subject: Re: S1 won't idle
PostPosted: Sat Sep 10, 2016 10:30 am 
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set fire to it
go to the pub
job done
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:twisted:

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 Post subject: Re: S1 won't idle
PostPosted: Sat Sep 10, 2016 11:22 am 
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Check CPS wiring under/behind the starter.

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 Post subject: Re: S1 won't idle
PostPosted: Sat Sep 10, 2016 1:40 pm 
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Maz wrote:
Check CPS wiring under/behind the starter.


I disconnected that to do some of the easier troubleshooting stuff, everything looked OK in that area. Anyway, took it for a quick spin, seemed OK, just the tickover was a bit high. Hopefully just need to tweak the tickover/ pilot screw settings a bit now and it'll be OK. No sneezing on the quick test ride, which was the first time in a long time :P


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 Post subject: Re: S1 won't idle
PostPosted: Sat Sep 24, 2016 6:05 am 
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03 wrote:
Take both leads to the local Harley shop, they will have Sportster ones that will fit. Probably a few dollars I guess.


Apparently they don't. They've ordered me a Buell front one from the East coast, $9.60. For that price I thought I may as well get a rear one as well, but it turns out the rear one is obsolete Image


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 Post subject: Re: S1 won't idle
PostPosted: Sat Sep 24, 2016 7:02 am 
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Bonzo wrote:
03 wrote:
Take both leads to the local Harley shop, they will have Sportster ones that will fit. Probably a few dollars I guess.


Apparently they don't. They've ordered me a Buell front one from the East coast, $9.60. For that price I thought I may as well get a rear one as well, but it turns out the rear one is obsolete Image

I guess it all depends what part numbers you use. I definitely got a set of Sportster ones that fitted, I have no idea the part number I used I'm afraid. I might have it at home somewhere, but that's not exactly helpful right now. The coil is the same, just a matter of lead length.

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 Post subject: Re: S1 won't idle
PostPosted: Sat Sep 24, 2016 7:21 am 
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03 wrote:
I guess it all depends what part numbers you use. I definitely got a set of Sportster ones that fitted, I have no idea the part number I used I'm afraid. I might have it at home somewhere, but that's not exactly helpful right now. The coil is the same, just a matter of lead length.


I suspected that, but I wasn't in a position to argue with the HD guy behind the desk lOl


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 Post subject: Re: S1 won't idle
PostPosted: Sat Sep 24, 2016 8:13 am 
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Bonzo wrote:
03 wrote:
I guess it all depends what part numbers you use. I definitely got a set of Sportster ones that fitted, I have no idea the part number I used I'm afraid. I might have it at home somewhere, but that's not exactly helpful right now. The coil is the same, just a matter of lead length.


I suspected that, but I wasn't in a position to argue with the HD guy behind the desk lOl
Yep, I'd suspect the same too. Over the years there must be dozens of not quite the same HT leads across all the different variants of the XL Girlster.

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 Post subject: Re: S1 won't idle
PostPosted: Sat Sep 24, 2016 2:31 pm 
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Bonzo wrote:
03 wrote:
I guess it all depends what part numbers you use. I definitely got a set of Sportster ones that fitted, I have no idea the part number I used I'm afraid. I might have it at home somewhere, but that's not exactly helpful right now. The coil is the same, just a matter of lead length.


I suspected that, but I wasn't in a position to argue with the HD guy behind the desk lOl


Was that because his IQ was in single figures? lOl lOl

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