carb synchronization


Information and questions on GL1100 Goldwings (1980-1983)
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grofovi
Posts: 9
Joined: Wed Jul 05, 2017 8:21 am
Location: Prague
Motorcycle: 1982 GL1100A Aspencade

carb synchronization

Post by grofovi »



Hello, can me somebody advice, where is mistake?

3 and 1 is ok vacuum circa 50
4 and 2 is max vacuum 4-5 only

Can you tell me where is mistake?

Thank you Ales


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RBGERSON
Posts: 3233
Joined: Tue Mar 09, 2010 7:57 am
Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: carb synchronization

Post by RBGERSON »

You need to adjust the vacuum on 2/4 with the adjuster screws..if you can't change then maybe you have a vacuum leak..valves set wrong?, what's your idle set to? bike warmed up?, on center stand?
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB
grofovi
Posts: 9
Joined: Wed Jul 05, 2017 8:21 am
Location: Prague
Motorcycle: 1982 GL1100A Aspencade

Re: carb synchronization

Post by grofovi »

it looks vacuum leak - I tried test with gasoline and I have to do repasse of carburetors.

Bike is on center stand, warmed, idle is going well only when vacuum is non balanced, when I try to balance vacuum - idle is wrong.

Vacum is not spliced between left and right valves, only right are working well.
User avatar
RBGERSON
Posts: 3233
Joined: Tue Mar 09, 2010 7:57 am
Location: SCOTTSDALE, AZ
Motorcycle: 98 SE GL 1500
had every year from 75 to 83

Re: carb synchronization

Post by RBGERSON »

Adjust 2/4, reset idle, adjust again reset idle and it until it's right. But if you have a vacuum leak yoiu can't synch the bike. There are two adjusters on the left side..one for 4 and one for 4 and 2. adjust 4 first then the two of them. You match 4 to 2, then 1 to 3 and then 4/2 to 1/3
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB
grofovi
Posts: 9
Joined: Wed Jul 05, 2017 8:21 am
Location: Prague
Motorcycle: 1982 GL1100A Aspencade

Re: carb synchronization

Post by grofovi »

There is leak, because it is not possible meet carbo synchronization and idle!

I will change seals under suction, after I will test leaks (wash by gasoline potential leak places) and will see, naw seals under order!

Thanks and BR Ales


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