Bike won't start


Information and questions on GL1500 Goldwings (1988-2000)
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Kingston
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1998 GL1500
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Bike won't start

Postby Kingston » Fri Nov 14, 2014 10:35 am



It turns over fine and the plugs spark good, but it won’t start. I drained the gas and put in fresh gas, about a gallon (may I should add more?) Cranking it and cranking it with the choke on then checking the plugs, they aren’t wet. Is there a way to check that the fuel pump is working?
1998 GL1500



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WingAdmin
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Re: Bike won't start

Postby WingAdmin » Fri Nov 14, 2014 11:27 am

More often than not, the "cranks but won't start" problem with the GL1500 is due to a weak battery. GL1500's need a LOT of power to both crank the engine as well as have enough power to generate a hot enough spark to light off the engine. If the battery is not up to the task, it will crank the engine, but the voltage remaining available during the crank isn't enough to run the ECU/spark. A lot of time people will have their GL1500 crank, but as long as the starter is held down, it won't start. As soon as they let go of the starter, the engine starts: the engine is still spinning, but the electrical load of the starter motor has been removed, so the voltage jumps up, and the bike generates spark and ignites the still-spinning engine.

In any case, put a voltmeter on your battery posts and check the voltage while you are holding the starter down. You should definitely not see below 11 volts while cranking, and higher is better.

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virgilmobile
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Re: Bike won't start

Postby virgilmobile » Fri Nov 14, 2014 11:55 am

On my 88,I can open the gas cap,turn on the key and hear the pump cycle for about 1 second...oddly enough,if I cycle the kill switch to off then back to run,the pump will cycle again..
There's always the vacuum fuel shutoff valve/vacuum line and fuel filter to consider too...

And yes,my bike will crank(seemingly OK) and not start also...watching the battery volts,this happens when the volt meter drops below 10.2 volts or so during cranking...

A 30 minute charge at 6 amp got it going first try...My maintenance charger is junk.
Read here.. viewtopic.php?f=16&t=24625

Lastly,remember that the fuel shutoff valve is vacuum operated so do not open the throttle while cranking...there may not be enough vacuum to open the valve...at least so I think... :D

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Re: Bike won't start

Postby oldguysrule » Wed Dec 24, 2014 12:13 am

Kingston,

I recently went thru a similar issue with my 98 1500. Engine would turn over like crazy but would not start. After much investigation, including testing the fuel pump (which was fine), ECM, etc. I discovered the problem was with the Auto fuel shutoff valve as mentioned above. The Auto fuel shutoff valve is vacuum operated and testing it with a vacuum pump immediately identified a problem. When I removed it and tore it down I found the diaphragm had a large tear in it. Replacement part was $142 @ Bike Bandit.com. Problem solved.

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Uncle Fester
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Re: Bike won't start

Postby Uncle Fester » Wed Dec 24, 2014 5:21 am

I have ran into this same type of issue TWICE on my bike now, once on the old battery ( needed replaced) and once on the new battery (got drawn down by cold weather/parked outside too long) both time I was able to jump start it with my van (van turned off, batts connected) and both time it fired right off when I gave her the extra juice.
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Kingston
Posts: 15
Joined: Thu Sep 11, 2014 9:13 am
Location: Kingston, Ontario
Motorcycle: 2004 Honda 919
1998 GL1500
1919 Indian PowerPlus (bought new)

Re: Bike won't start

Postby Kingston » Wed Dec 24, 2014 9:20 am

The problem is solved. It's the battery, as soon as I let off the starter it starts right up, every time. I will be buying a new battery.
Merry Christmas to All.

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Mh434
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1981 GL1100I
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Re: Bike won't start

Postby Mh434 » Wed Dec 24, 2014 1:04 pm

Glad you got it! I'd recommend an AGM-type battery. They cost a little more, but are spill-proof, don't off-gas, have more capacity & live longer.

Plus, if you opt to go for a high-output alternator (something I resisted myself initially, but now highly recommend!), you'll need an AGM battery anyway. I installed a LActrical 95-amp alternator (you can find 'em on Amazon for around $137) & generic AGM battery, and I now don't have to worry about my bike's electrical budget.

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Uncle Fester
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Re: Bike won't start

Postby Uncle Fester » Wed Dec 24, 2014 1:08 pm

I am glad to hear you got it fixed, well, found the problem. . . .

I too recommend a AGM Battery, well worth the extra coin.


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