Not starting this spring


Information and questions on GL1500 Goldwings (1988-2000)
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hazelwoodgarage
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Not starting this spring

Postby hazelwoodgarage » Mon Apr 07, 2014 10:46 am



I have a 1988 gl 1500 with 140000 miles, I tried to start it the 1st time for this season today, it spins over but won't fire, I can smell gas so it's getting that, I noticed last year if the bike sat for a week, it wouldn't start when the starter was spinning over the motor but when releasing the start button it would fire. If running it every day it wouldn't do it. I'm thinking that's what's happening now too, have any ideas?



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ct1500
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Re: Not starting this spring

Postby ct1500 » Mon Apr 07, 2014 11:10 am

A weak battery will cause the problem and old spark plugs will contribute to it. When was the last time plugs were changed?
This is what I do
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virgilmobile
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Re: Not starting this spring

Postby virgilmobile » Mon Apr 07, 2014 11:57 am

A+++1 on a weak battery.
Look when you crank it.The tach should start to move after the engine has turned a full revolution.
If it stays at zero,there's no spark.
The ECM needs a good 10.2 volts and a full turn of the engine to start the spark process.A weak battery can fall below 10 volts at the ECM pretty quick...the computer can't process the pulses and will not fire the plugs at all.The quick cranking allows the battery to maintain the volts just long enough to fire it off.
I actually measured my battery at just above 9 volts while cranking the engine.Obviously it wouldn't start either.

Dogsled
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Re: Not starting this spring

Postby Dogsled » Mon Apr 07, 2014 5:14 pm

I guess you can't put one word in on this forum........ 'CHOKE'. Sounds like the bike is turning over but just won't fire, CHOKE.

A weak battery would cause the bike to NOT TURN OVER.

Maybe we need more info ;

lets see, you smell gas but no fire....flooded cause of no choke.
Sounds like the bike is turning over well just won't fire....like when it gets flooded

Don't leave out details, too hard to figure what's wrong. Nohing said about a slow turn over like battery low......everyones assumptions here are correct according to you original post.
"Fight until hell freezes over, then fight on the ice"

hazelwoodgarage
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Re: Not starting this spring

Postby hazelwoodgarage » Mon Apr 07, 2014 6:57 pm

The battery was charged good, it's like spinning the motor takes to much power because when I would release the start button, the engine would fire, my nieghbor stopped by today, he owns a 94 Goldwing, he says his does that too sometimes, wouldn't start when starter is spinning but when taking thumb off start button the engine would fire, he said gold wings do that sometimes
Mine decided to start this afternoon too.

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artgrantz
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Re: Not starting this spring

Postby artgrantz » Mon Apr 07, 2014 7:03 pm

I'll put my 2 cents in with the weak battery crowd. The load caused by cranking the engine causes the battery voltage to drop, when you release the start switch it takes the load off of the weak battery and the voltages rises to the point where it can supply the spark and the engine catches just before it stops spinning. Mine did the same thing until I changed the battery.

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virgilmobile
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Re: Not starting this spring

Postby virgilmobile » Mon Apr 07, 2014 8:10 pm

Same answer again and I proved it.To me at least.
When mine had this exact problem,I measured the battery volts during cranking.At that moment it dropped to 9.4 VDC then would pick up to over 10.8 volts as soon as I stopped.
I cut the power wire to the ECM module and applied 12.5 volts from a sepetated battery and cranked the engine.Even tho the cranking volts still dropped to 9.4 volts,with 12.5 volts on the ECM the bike fired up right away.I also noticed that the tach moved well during the cranking.

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WingAdmin
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Re: Not starting this spring

Postby WingAdmin » Mon Apr 07, 2014 9:56 pm

hazelwoodgarage wrote:The battery was charged good, it's like spinning the motor takes to much power because when I would release the start button, the engine would fire, my nieghbor stopped by today, he owns a 94 Goldwing, he says his does that too sometimes, wouldn't start when starter is spinning but when taking thumb off start button the engine would fire, he said gold wings do that sometimes
Mine decided to start this afternoon too.


Like Virgil said, this is a classic GL1500 problem, and points directly to a weak battery. It has enough power to spark the plugs, or enough power to crank the engine, just not enough power to do both at the same time. It cranks the engine, and as soon as you let go of the starter, there is enough power to spark the plugs, and because the engine is still spinning, it starts up.

A nice new AGM battery will fix the problem.

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dingdong
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Re: Not starting this spring

Postby dingdong » Tue Apr 08, 2014 7:10 am

Me too on the battery. "Replace" your battery preferably with an AGM. The problem will go away.


Tom

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