Interesting restart issue


Information and questions on GL1500 Goldwings (1988-2000)
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mjsracing
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Joined: Thu Nov 01, 2018 7:16 pm
Location: Raleigh NC
Motorcycle: 2000 GL1500 SE

Interesting restart issue

Post by mjsracing » Fri Feb 08, 2019 1:38 pm



Hello. My 2000 GL1500 has just started acting up.

usually, when I'm done riding and parked in the garage I put it on the center stand. When ready to ride next, I open the enricher and it starts right up. Last ride, it started up as usual in the garage. I rode in to work and parked on the side stand on a 70F day. It was very hard to start for the ride home. The engine spun quickly, but it never fired for a while. I partially opened the enricher, then more enricher, and it started and ran fine. No issues. I didn't give it much thought other than to note that it was odd. The bike had cooled, but was not cold.

Next time I went to ride, it started right up as usual. It was almost 80F that evening and a 1 hour ride in heavy traffic to get to a meetup. About an hour later, when I was ready to leave a bike meetup, it was even harder to start. It spins the engine very well, but never seems to fire. Using the enricher, I got it started and it ran fine. The bike was still very warm.

Before this week, it always started very easily using the enricher if it was cold, and with just the starter when it was warm.

I'm looking for troubleshooting suggestions. Thanks!



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MikeB
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Re: Interesting restart issue

Post by MikeB » Fri Feb 08, 2019 1:54 pm

I don't think there is a problem with the bike to be honest. I've experienced things like this as well but it was never a big concern.
Ambient temperature, engine temperature, altitude and quality of fuel will all cause differing "symptoms".
My suggestion would be to run that fuel out and fill it up with a fresh tank of fuel and see how it goes.
You may be just flooding the engine.
MikeB
Tacoma, WA, USA

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virgilmobile
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Re: Interesting restart issue

Post by virgilmobile » Fri Feb 08, 2019 1:54 pm

If start with a load test on the battery.
Even tho they crank over ok,the voltage may be dropping off a bit too much to get a good spark.
It's the easiest thing to check.
Do you have a voltmeter to monitor the battery volts while cranking.?
I put one on mine..It still cranked ok but the battery fell below 10 volts...Couldn't get a decent spark to fire it off..

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MikeB
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Re: Interesting restart issue

Post by MikeB » Fri Feb 08, 2019 2:01 pm

virgilmobile wrote:
Fri Feb 08, 2019 1:54 pm
If start with a load test on the battery.
Even tho they crank over ok,the voltage may be dropping off a bit too much to get a good spark.
It's the easiest thing to check.
Do you have a voltmeter to monitor the battery volts while cranking.?
I put one on mine..It still cranked ok but the battery fell below 10 volts...Couldn't get a decent spark to fire it off..
Good point Virgil. I keep forgetting that a lot of folks do not realize that the GL1500 is a voltage/current hungry beast, especially on start up.
When someone leads me down a garden path such as "I think I have a fuel problem.. " I get tunnel vision.
MikeB
Tacoma, WA, USA

mjsracing
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Re: Interesting restart issue

Post by mjsracing » Fri Feb 08, 2019 2:59 pm

Thanks for the voltage test suggestion. I’ll check the voltage while cranking tonight.

I didn’t mean to imply a fuel problem. The reason I mentioned the enrichment was because it would crank but not fire until I moved the enrichment lever.

I’ll post results!

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virgilmobile
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Re: Interesting restart issue

Post by virgilmobile » Fri Feb 08, 2019 3:49 pm

Keep in mind..This is just the first step .
I don't want to mislead you into thinking I have the solution...

mjsracing
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Re: Interesting restart issue

Post by mjsracing » Fri Feb 08, 2019 5:55 pm

I understand the first step. Sometimes we get lucky, other times we have to go deeper...

Battery never dropped below 12.3V during cranking. Was over 13 with ignition on. Its a 2 month old battery so I think its in good shape.

Interestingly, the bike started cold without the enricher while I was cranking for the voltage check.

At this point, I'm going to assume that nothing too terrible is going on. Next ride, I'll see how it starts warm. If I have issues, I will loosen the gas cap to eliminate that.

Thanks for the suggesting thus far!

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joeincalif
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Re: Interesting restart issue

Post by joeincalif » Fri Feb 08, 2019 6:38 pm

I found that on my 98 SE when it was cold, first start of the day, all I had to do was crank the throttle 2 or 3 times BEFORE i pushed the start button and it started every time. didn't have to use the enricher at all and I know cranking the throttle does the same thing.
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Rodzim
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Re: Interesting restart issue

Post by Rodzim » Fri Feb 08, 2019 8:21 pm

I bet you have some water in the fuel or just bad gas quality. It happens more often than you think at small gas stations. Just run that tank dry and fill up at a busy gas station. Here in ga we have racetrac and quiktrip. Big gas station chains. They never had a fuel complaint that im aware of. Small gas stations have gas sitting in their tanks for weeks on end and they are not as well maintained as big chain stations.

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RockportDave
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Re: Interesting restart issue

Post by RockportDave » Fri Feb 08, 2019 11:52 pm

My 99 has the same symptoms. Right after a good tune up and carb rebuild, after sitting over night, it would start with half “choke” and when warm, would start with a touch of the starter. Lately with the engine warm, about every 5th start I will have to open the throttle to get it to start and it takes a few seconds to get to idle. I’ve only had it since last March so it could be the weather or as others have stated, not the best gas. It gets consistent 34-35 mpg with just me or two up. We don’t have many hills on the coast, but we do have wind.
I rarely use the center stand.
My voltmeter shows just under 12 volts when starting.
I plan to change the fuel filter soon and I run Seafoam about every 4th tank.
No complaints here, it’s 20 years old.
Dave
1999 GL1500SE 5th Goldwing through the years

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Mh434
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Re: Interesting restart issue

Post by Mh434 » Sun Feb 10, 2019 4:59 pm

By the way, anytime my bike sits for an hour or more, I need to give it a touch of "choke" or else I have to crank it for a bit. As others have said, twisting the throttle a bit before cranking helps, too. Although I haven't had my carbs off or apart, I expect they have accelerator pumps, so that little throttle twist before cranking gives a little shot of gas into the venturis. That can make the use of the "choke" unnecessary if the engine's still a bit warm.

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AZgl1800
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Re: Interesting restart issue

Post by AZgl1800 » Sun Feb 10, 2019 8:52 pm

Mh434 wrote:
Sun Feb 10, 2019 4:59 pm
By the way, anytime my bike sits for an hour or more, I need to give it a touch of "choke" or else I have to crank it for a bit. As others have said, twisting the throttle a bit before cranking helps, too. Although I haven't had my carbs off or apart, I expect they have accelerator pumps, so that little throttle twist before cranking gives a little shot of gas into the venturis. That can make the use of the "choke" unnecessary if the engine's still a bit warm.

yes, both carbs do have an accelerator pump.
and a full twist of the throttle dumps a short burst of fuel right down into the plenum to the intake manifold.
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Sadanorakman
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Re: Interesting restart issue

Post by Sadanorakman » Wed Feb 13, 2019 7:10 am

Mh434 wrote:
Sun Feb 10, 2019 4:59 pm
By the way, anytime my bike sits for an hour or more, I need to give it a touch of "choke" or else I have to crank it for a bit.
Reminds me of a Ford Escort MkII I had as a teanager. It was fitted with a twin-choke Weber carb, and after a hard drive on a hot summer's day, the residual engine heat would evaporate all of the gas from the float bowl! That used to take some cranking to get started then!


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