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post #1 of (permalink) Old 04-05-2019, 05:00 PM Thread Starter
I think I was wrong once!
justwingnit's Avatar
Join Date: Jun 2012
Location: Cedar Lake, Indiana, 46303
Year: 1990
Make: GL1500
Model: 1990 GL 1500
Posts: 382
90 GL1500 Carb. Jetting Question

My 1090 GL1500 got to the point I was afraid to drive it,
It would not idle (could not turn idle adjuster, it was seized) on take offs I had to raise the rpm's real high and almost red line the thing to get it to take off from a stop, when I was slowing down and down shifting the engine would dye out.

I took the carbs off and found the accelerator pump was not working and when i got into the float bowls the idle jets were almost plugged up!

I un-seized the Idle adjuster, I got the accelerator pump working, but when I pulled the jets out I busted one, so I ordered a rebuild kit off e-bay.

Jets in side my carbs. are 158 mains and 60 idle the kit I bought has 155 and 158 mains along with 50 and 60 idle jets, I live in Chicago area and 99% of my ridding is at this altitude.

Why do they sell the 155 and 50's in same kit and (should I?) or (I should!) just put the 158 and 60's back into the carbs right??

Thanks for your help.


1990 GL 1500 just got her 3/8/16
1986 GL1200A Aspencade, from 6/1/12 to 3/1/2016 have rode over 28,000 miles on her.
1982 KZ 1100 may have put 10000 miles on it in 10 years
Multiple Yamaha XS 750 & XS 850 One had a vetter fairing, bags and trunk
Honda CB400 Drove from Chicago to Tulsa Ok in 1984
Honda CB250 Enduro loved it from street to dirt and back again all the time.
YZ 250 never raced but rode alot, First bike ever was a mini bike with a Brigs engine.
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