GL1500 carb air jet solenoids


Information and questions on GL1500 Goldwings (1988-2000)
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spiralout
Posts: 1044
Joined: Sun Feb 17, 2013 6:41 pm
Location: Alabama
Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

GL1500 carb air jet solenoids

Postby spiralout » Sat Nov 21, 2015 3:50 pm



Looking for someone who has a running 1500 with the right inner fairing removed and access to the carb air jet solenoids to send me a PM or reply here. I have a question for you. Thanks.



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redial
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Location: Kapunda, SouthAustralia
Motorcycle: 1997 GL1500 Spectre Red Aspencade

Re: GL1500 carb air jet solenoids

Postby redial » Thu Dec 31, 2015 2:54 am

Spiralout, - did you ever get a response to this question?
Len in Kapunda

The world is not going to finish today, as it is already tomorrow in Australia and New Zealand, and other islands of foreign nations such as Guam and Samoa.

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virgilmobile
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Motorcycle: 1988 GL1500 I
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78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: GL1500 carb air jet solenoids

Postby virgilmobile » Thu Dec 31, 2015 9:05 am

Not today,but I did go over that in detail a couple of years ago on my 88 after replacing the bad vacuum and air lines.
I actually attached a lamp to each solenoid (for testing) to verify they operated.
In a nutshell...
one solenoid gets power and opens around 1500 rpm...near 2500 rpm,it shuts off and the second gets power and opens...Near 3500 rpm,they both get power and open.
There purpose is to help control airflow in the carb.I did notice just a VERY SMALL change in the engine when each was energized...

User avatar
spiralout
Posts: 1044
Joined: Sun Feb 17, 2013 6:41 pm
Location: Alabama
Motorcycle: 1975 GL1000 (gone)
1980 GL1100I (with '77 1000 engine)
1996 GL1500 SE

Re: GL1500 carb air jet solenoids

Postby spiralout » Thu Dec 31, 2015 1:39 pm

redial wrote:Spiralout, - did you ever get a response to this question?

I got one but no followup from him.
virgilmobile wrote:Not today,but I did go over that in detail a couple of years ago on my 88 after replacing the bad vacuum and air lines.
I actually attached a lamp to each solenoid (for testing) to verify they operated.
In a nutshell...
one solenoid gets power and opens around 1500 rpm...near 2500 rpm,it shuts off and the second gets power and opens...Near 3500 rpm,they both get power and open.
There purpose is to help control airflow in the carb.I did notice just a VERY SMALL change in the engine when each was energized...

Thanks. I know how they work and what their purpose is. I had a question about the CAJs sensitivity to pressure differences on the air intake side. I had been trying to diagnose the cause of an intermittent loss of the left three cylinders at idle when I noticed that with the engine idling, a slight vacuum or pressure (and by slight, I mean just blowing in to the hose with your lips an inch away) on the sub air filter hose would completely kill the motor. Both CAJs passed the vac and electrical tests, though. After posting this I replaced them with some used ones and they had the same sensitivity but the problem hasn't happened again. When I was doing all this I also discovered that the sub air filter box was doing jack sh*%. The way the box is made, it doesn't seal when snapped together and the intake air bypasses the foam filter by coming in through the seam of the two pieces. I tested this with and without the filter installed.




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