1980 GS1100E: Can't keep her running

[bluehwy]

#4

3 and 4 are really clean?

[bluehwy]

Air jets

#2's is a lot further in than 1,3,&4? This is #1

[bluehwy]

Air jets

This is #2

[bluehwy]

Valves

#1 looks really clean. Do the valves look dirty?

[bluehwy]

Valves

#4 it looks like a screw is about to fall out?

[Agemax]

#4 it looks like a screw is about to fall out?

i cant see a screw . what screw are you referring too?

[Guest]

Those are not pictures of the inside of the carbs, just the throats.
Your head has been ported.

[bluehwy]

Those are not pictures of the inside of the carbs, just the throats.
Your head has been ported.

Right, I haven't broke them down yet. Trying to see if there are signs of problems as I go.

[bluehwy]

Right, I haven't broke them down yet. Trying to see if there are signs of problems as I go.

I don't know what it means to have a ported head. Please explain.

[bluehwy]

i cant see a screw . what screw are you referring too?

towards the top right there are threads sticking down. It looks like the bolt/screw has needle size holes in it.

[Agemax]

towards the top right there are threads sticking down. It looks like the bolt/screw has needle size holes in it.

those are the vacuum ports used for synching the carbs. there should be a bolt in there blocking off the hole or an adaptor for attaching the vacuum hose on. if it is an adaptor it should have a blanking plug on it

[bluehwy]

Those are not pictures of the inside of the carbs, just the throats.
Your head has been ported.

why the stains in #1 and less in #2 and 3&4 are clean?

[bluehwy]

those are the vacuum ports used for synching the carbs. there should be a bolt in there blocking off the hole or an adaptor for attaching the vacuum hose on. if it is an adaptor it should have a blanking plug on it

Ha, sorry, my bad. That was lame of me. I know what those are. I was focused on the picture and didn't use any of my brain.

[Maddevill]

Hmmm

It looks like #1and #2 the float level is high enough that fuel is backing up into the airbleed system then being sucked past the slides . That's why both the slides on those cylinders have fuel residue on them. You need to check the float levels on at least those two. Of course I could be out of my mind....

Mad

[bluehwy]

It looks like #1and #2 the float level is high enough that fuel is backing up into the airbleed system then being sucked past the slides . That's why both the slides on those cylinders have fuel residue on them. You need to check the float levels on at least those two. Of course I could be out of my mind....

Mad

I'm nervous about taking this on but for good measure I'm going to break them down completely. I am very thankful for you guys and helping me understand what is going on along the way!