You might consider this item: GL1200 Carburetor Repair Manual written by Howard Halasz
This Tech Tip is provided courtesy of Howard Halasz – noted early ‘Wing Guru. Howard is a frequent contributor of technical columns and other information to GWRRA’s Wing World Magazine.
It is very important that the hose routing and connections at the bottom side of the GL1200 carburetor assembly should be as follows:
1. Vacuum hose from #4 intake pipe connects to plastic tee and to vacuum ports at air cutoff valve and anti-afterburn valve.
2. Vacuum hose at #4 carburetor vacuum port is routed toward front of carburetor assembly, then up to tee fitting near the electronic ignition module.
3. Large slow air supply lines should be routed from air cutoff valve to slow air pipes between carburetors 1-3 and 2-4. See FIGURE 1 below.
FIGURE 1
It is also very important to label the ends of all vacuum hoses when you remove them from the carburetor assembly so that you will remember where they connect when it is time to reassemble your carburetor assembly. See FIGURE 2 below.
FIGURE 2
Howard Halasz, Wing World Technical Contributor – Houston, TX
I have a 1986honda goldwing aspencade gl1200 ,have a vacuum line that’s not hooked up it’s coming from the ignition unit where do I need to hook it up to the vacuum tee between cards 2@4 or on the bottom of card number 4 with a tee fitting
I’n not getting spark from right coilto plugs . can not find anything wrong that not working ? would the vacuum line from carb to the module be causing this ? did clean carbs . if I use the module on another bike it works , change the pickup coil . coil good I’m lost what else but wiring .
Useful info. Fortunate me I found your website by chance, and I’m stunned why this accident didn’t came
about in advance! I bookmarked it.