MPG


Information and questions on GL1100 Goldwings (1980-1983)
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penntoy123
Posts: 48
Joined: Sun Jun 12, 2011 5:01 pm
Location: jacksonville, nc
Motorcycle: 1982 GL1100A Aspencade

MPG

Postby penntoy123 » Thu Apr 05, 2012 5:59 am



I've seen many posts concerning MPG. I had my carbs rebuilt and sync'd, brakes rebuild, front master cyclinder rebuilt, rear suspension and shaft rebuilt and lubed. I am still getting 23 mpg with my 1982 Aspencade. I plan on pulling the exhaust this weekend to make sure they are not clogged. Any other ideas?



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RBGERSON
Posts: 2625
Joined: Tue Mar 09, 2010 7:57 am
Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: MPG

Postby RBGERSON » Thu Apr 05, 2012 8:11 am

Check your plugs what do they look like should be a nice light tan..if wet, sooty or black = carb or spark issues.

Check the top of the engine..any dried fuel?? = leak

Dragging brake..check after ride is one hot?? be careful it will burn you if it is.
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: MPG

Postby dnehasert » Thu Apr 05, 2012 9:32 am

A bad ignition coil or wires would cause poor mpg. If you find 1-3 or 2-4 plugs are fouled, that is where to look. Check your service manual for info. Doug

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Johnyy Smoke
Posts: 600
Joined: Sat Nov 26, 2011 6:44 am
Location: Se Minnesota
Motorcycle: 1980 GL1100
Vetter. "Its like Deja Vu all over again".

Re: MPG

Postby Johnyy Smoke » Thu Apr 05, 2012 2:36 pm

Check compression-below 130 can equal terrible gas milage.Send us the results.Regards,Johnyy

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penntoy123
Posts: 48
Joined: Sun Jun 12, 2011 5:01 pm
Location: jacksonville, nc
Motorcycle: 1982 GL1100A Aspencade

Re: MPG

Postby penntoy123 » Sat Apr 07, 2012 2:48 pm

I bought a compression tester from Harbor Freight and all four cyclinders measured 60, the plugs were black and smelled of gas. I looked for the spark and all seemed good. I will try to put some 30wt is a cylinder to see if that does anything.

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SteveB123
Posts: 842
Joined: Thu Apr 05, 2012 9:29 am
Location: Winchester, Ontario, Canada
Motorcycle: 1982 1100I, 60A Poorboy, MSD coil

Re: MPG

Postby SteveB123 » Thu Apr 12, 2012 2:48 pm

penntoy123 wrote:I bought a compression tester from Harbor Freight and all four cyclinders measured 60, the plugs were black and smelled of gas. I looked for the spark and all seemed good. I will try to put some 30wt is a cylinder to see if that does anything.


60 PSI on each cylinder is trouble...but having it EVEN on each cylinder leads me to wonder if the cam timing if off a tooth.
Black plugs means a rich mixture for any number of reasons, starting with a plugged air filter.
Current:82 GL1100 Interstate, 60 Amp Poorboy, MSD coil
Previous: 93 GSX1100F Katana
82 GL500 Silverwing

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penntoy123
Posts: 48
Joined: Sun Jun 12, 2011 5:01 pm
Location: jacksonville, nc
Motorcycle: 1982 GL1100A Aspencade

Re: MPG

Postby penntoy123 » Thu Apr 12, 2012 4:10 pm

I was thinking the same thing that the belt may be off a tooth, I do have poor top end (above 50 mph). I will be stripping it down tonight, verify the timing belt, then adjust the valves. On Saturday, a good clean up and a ride. I did change the oil to a synthetic, plus I added Marvins Mystery oil. I think it's doing it's job, I am hearing some valves (clacking) at high rpms, at least that is what I hope I am hearing. The bike was sitting for sometime before I bought it. If this doesn't fix it, then it may be time for rings, but I am not convinced it the rings though, doen't burn oil and no smoke. While I have it apart, I'll finish the rear brakes. It's been real nice here in North Carolina, no time for the bike to be down.

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Johnyy Smoke
Posts: 600
Joined: Sat Nov 26, 2011 6:44 am
Location: Se Minnesota
Motorcycle: 1980 GL1100
Vetter. "Its like Deja Vu all over again".

Re: MPG

Postby Johnyy Smoke » Fri Apr 13, 2012 3:57 pm

While your in there-sync the carbs and adjust valves.Good luck.Regards,Johnyy

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1988jeep
Posts: 18
Joined: Sat Mar 03, 2012 9:12 pm
Location: rocky point nc
Motorcycle: 1983 honda goldwing, 1981 honda custom cb650

Re: MPG

Postby 1988jeep » Tue Apr 17, 2012 11:51 am

wow sound like me I live in carolina 10 miles out side wilmington I have a 83 aspencade 1100A it too had set up for long time Im haven trouble with 1 cylinder running comes and goes while I ride Im on my second tank of gas with that same oil in crank case and sea foam in the gas its got better but I feel Im getting low miles also hopen to go for a ride later today good luck with yours
on the ride of life I preferr to do it on a goldwing ride safe

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britman
Posts: 150
Joined: Tue Mar 09, 2010 5:58 pm
Location: saint louis
Motorcycle: 83 goldwing and an 82 naked goldwing

Re: MPG

Postby britman » Wed Apr 18, 2012 8:37 pm

So if its running rich how do you adjust that




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