75 Goldwing problem
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- Posts: 23
- Joined: Fri Jul 03, 2015 8:27 am
- Location: Michigan
- Motorcycle: 1975 GL1000KO Goldwing, 1974 CB750K4, 1976 CB750A Hondamatic, Super Sport, 1983 CB1000C Custom
75 Goldwing problem
Why would one side of the engine run hotter than the other side. After just 5 minites of idle the right side is much hotter than the left. They both have good spark and compression and are getting gas. Could it be a timing issue. Thanks.
- Ncscooter
- Posts: 53
- Joined: Wed Jun 17, 2015 11:20 am
- Location: North Carolina
- Motorcycle: 77 GL1000
76 CB400F
Re: 75 Goldwing problem
Timing would more likely be front vs. back since 1&2 are one coil and 3&4 are the other. How long has this been going on? Carb Synch? Carbs Clean? Compression? Valves adjusted proper?
Keep your expectations tiny and you won't end up so whiny.
- Maz
- Posts: 820
- Joined: Tue May 19, 2015 4:43 am
- Location: Kent, UK
- Motorcycle: 1975 GL1000K1
1976 CB500T
1979 CB750L
1990 Yamaha FJ1200
1993 Suzuki GS500E
Re: 75 Goldwing problem
Mixture? A lean condition would cause overheating.
Maz
Maz
Ironically, Common Sense is the LEAST common of all senses!
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- Posts: 23
- Joined: Fri Jul 03, 2015 8:27 am
- Location: Michigan
- Motorcycle: 1975 GL1000KO Goldwing, 1974 CB750K4, 1976 CB750A Hondamatic, Super Sport, 1983 CB1000C Custom
Re: 75 Goldwing problem
This a new start up after a rebuild. I rebuilt the carbs with new kits and found the carb air jets at 1 to 1.5 turns out so thats where I reset them when I reinstalled the carbs. Does this sound OK. I also hear some loud knocking coming from the engine, cannot pin-point it though.
- Maz
- Posts: 820
- Joined: Tue May 19, 2015 4:43 am
- Location: Kent, UK
- Motorcycle: 1975 GL1000K1
1976 CB500T
1979 CB750L
1990 Yamaha FJ1200
1993 Suzuki GS500E
Re: 75 Goldwing problem
It sounds like the bike is only firing on a couple of cylinders. That would explain one side being hotter (obviously the non-firing side will be cool) and, when these engines aren't firing on all 4, they sound like they're about to self destruct.
Check again to make sure you have fuel and spark on all 4 and check the temperature of the exhaust headers on the cold side as the engine warms up. If you test with a quick tap with fingers you'll soon find if they're warming up or not. Obviously take great care!!
Maz
Check again to make sure you have fuel and spark on all 4 and check the temperature of the exhaust headers on the cold side as the engine warms up. If you test with a quick tap with fingers you'll soon find if they're warming up or not. Obviously take great care!!
Maz
Ironically, Common Sense is the LEAST common of all senses!
- Ncscooter
- Posts: 53
- Joined: Wed Jun 17, 2015 11:20 am
- Location: North Carolina
- Motorcycle: 77 GL1000
76 CB400F
Re: 75 Goldwing problem
What he said. Assuming you have 755A carbs, 1 3/8 turns out is what Mother Honda recommends as a starting point. And synch. Is your tank and filter clean?
Keep your expectations tiny and you won't end up so whiny.