1982 GL1100 startling fuel consumption


Information and questions on GL1100 Goldwings (1980-1983)
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Gnosistika
Posts: 24
Joined: Wed Jun 10, 2015 4:07 am
Location: Pretoria, Gauteng, South Africa
Motorcycle: 1980 BMW r65 (retired)
1982 GL1100 (Apple)

1982 GL1100 startling fuel consumption

Postby Gnosistika » Tue Aug 25, 2015 11:39 am



HI Guys,

I have read the posts trying to get my head around an issue that developed just recently with the bike.

Firstly - Three weeks ago I did 242KM (152 miles) on a full tank - Already fuelly. A week after that I only got 155km (96 miles) on a full tank. I discovered that there was fuel leaking from the diaphragm area. My question is, can this be the only reason for the terribly poor fuel consumption? What else should I be looking for? The previous owner did well over 320km (198 miles) on a full tank. The pump started making a strange clicking sound (although, I did read some guys call this the Honda sound.) - not sure I agree.

Secondly - There seem to be no power. The bike has become sluggish. Is this a compression issue?

Could these two issues be linked? They developed at roughly the same time.


Thank you all in advance,

and Mea Culpa for asking questions that have all been answered.


"Of all the the things I have lost, I miss my mind the most"

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RBGERSON
Posts: 2621
Joined: Tue Mar 09, 2010 7:57 am
Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: 1982 GL1100 startling fuel consumption

Postby RBGERSON » Tue Aug 25, 2015 8:09 pm

A leaky pump squirts fuel out the weep hole so yes it will drop youir gas mileage significantly as the hole gets bigger. Yep, other things could cause it as well..bad rings or valve settings, bad plug or poor spark, etc.etc.
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

User avatar
Gnosistika
Posts: 24
Joined: Wed Jun 10, 2015 4:07 am
Location: Pretoria, Gauteng, South Africa
Motorcycle: 1980 BMW r65 (retired)
1982 GL1100 (Apple)

Re: 1982 GL1100 startling fuel consumption

Postby Gnosistika » Wed Aug 26, 2015 3:31 am

Thank you RBGERSON.

I was hoping that there would be fewer possibilities, as I am new to Goldwing issues.
Ah well, back to checking everything :)
"Of all the the things I have lost, I miss my mind the most"

User avatar
RBGERSON
Posts: 2621
Joined: Tue Mar 09, 2010 7:57 am
Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: 1982 GL1100 startling fuel consumption

Postby RBGERSON » Wed Aug 26, 2015 7:59 am

If youir pump is leaking that's the first step as it is a fire hazard..they are available new from Honda $70? or on ebay for 20 or so..they can be rebuilt but not a simple process. checking the plugs for spark and compression are easy too. also look for dried gas on the top of you engine it = leaky carbs
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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dnehasert
Posts: 132
Joined: Sun Sep 27, 2009 11:25 pm
Location: Mesa AZ.
Motorcycle: 1982 GL1100 with Watsonian sidecar

Re: 1982 GL1100 startling fuel consumption

Postby dnehasert » Thu Aug 27, 2015 7:41 pm

Yes, check your plugs . I had an ignition coil go bad, and was getting about 22 miles per gallon. Replaced the coil and runs very good . But fix your fuel leak first.

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Gnosistika
Posts: 24
Joined: Wed Jun 10, 2015 4:07 am
Location: Pretoria, Gauteng, South Africa
Motorcycle: 1980 BMW r65 (retired)
1982 GL1100 (Apple)

Re: 1982 GL1100 startling fuel consumption

Postby Gnosistika » Sun Aug 30, 2015 4:29 am

Thanks Guys,

This helped tremendously. One step closer to getting the bike going smoothly.

I have not considered the plugs and coil. Superb advice.


"Of all the the things I have lost, I miss my mind the most"


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