cylinder 3 running hot


Information and questions on GL1100 Goldwings (1980-1983)
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winguyjo
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Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete. SOLD
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81gl1100i frame/82gl1100a engine/81cb900 bits. resurrection complete. naked. SOLD.
wing4 : 1977 gl1000 black w/ blue pinstripes; resurrection complete. SOLD
wing5 : 1977 gl1000 black w/gold pinstripes; nearly roadworthy when purchased, NOW RIDING.
wing6 : 1975 gl1000 blue; SOLD

cylinder 3 running hot

Post by winguyjo »



thought i had posted this earlier; sorry if it's a duplicate ...

i have a parts bike, 1981 gl1100 that i was hoping to salvage the engine from, but it's not looking good.
in addition to low compression all around (75-85psi) cylinder 3 is noticeably hotter to the touch than the rest, and there is white/blue smoke coming from the right bank.
i know that white smoke is coolant, blue is oil, but what would cause a single cylinder to run hot ?

p.s. i am new to goldwings and fairly new to motorcycles in general.

thanks
joe


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Maz
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Motorcycle: 1975 GL1000K1
1976 CB500T
1979 CB750L
1990 Yamaha FJ1200
1993 Suzuki GS500E

Re: cylinder 3 running hot

Post by Maz »

A lean fuel/air mixture will cause hot running. Maybe a problem with #3 carb.

Maz
Ironically, Common Sense is the LEAST common of all senses!
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dingdong
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Motorcycle: 1976 gl1000
1993 gl1500A
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Re: cylinder 3 running hot

Post by dingdong »

Possible blown head gasket.
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RBGERSON
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had every year from 75 to 83

Re: cylinder 3 running hot

Post by RBGERSON »

Yep blown head gasket can cause blue and white smoke and low compression. Air leak into a cylinder will lean it out and cause it to run hot check the plugs what color is it?? white = lean...

Low compression could be stuck rings which may loosen up with some running time..have you set the valves?? run for a few minutes check compression then pull the plugs add a little oil to each cylinder then check compression again if it comes up = ring issues if not valves issues.
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB
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winguyjo
Posts: 472
Joined: Sat Aug 11, 2018 9:26 pm
Location: b.c. Canada
Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete. SOLD
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81gl1100i frame/82gl1100a engine/81cb900 bits. resurrection complete. naked. SOLD.
wing4 : 1977 gl1000 black w/ blue pinstripes; resurrection complete. SOLD
wing5 : 1977 gl1000 black w/gold pinstripes; nearly roadworthy when purchased, NOW RIDING.
wing6 : 1975 gl1000 blue; SOLD

Re: cylinder 3 running hot

Post by winguyjo »

thanks for the feedback, everbody.
will try to spend a bit of time on it today to see what i come up with.


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