1976 Honda GL1000

Finally I had some time to go mess with the GL again. After discussing it with my friend Ben from school it seemed like I was having a fuel supply issue. I ghetto rigged up a gravity fuel supply and hooked it right to the carbs, unhooking the fuel pump and turning the petcock off. After a little coaxing it fired up but wouldn't run without the choke, I also noticed that one of the exhaust headers was glowing red so I shut it down. A few more texts with Ben and I went back and made sure all the mixture screws were set to 2 1/2 turns out. After that I got it to idle with out the choke.

While I let it sit and idle for a bit running off the gravity feed I decided to test the fuel pump. I pointed the fuel hose into a gas can and turned on the petcock. Fuel shot out in a pretty even stream into the can so I shut everything down and hooked the fuel pump back up. It fired up and ran again.

Getting closer. Ben is coming over tomorrow to help and see if we can tune the carbs a bit better.
 
Hoosier Daddy said:
Sounds like you are making progress! Congrats

But this still is an issue...
Click to expand...

Odd thing is, today I didn't notice any of that. Could be I was too focused on other stuff since it was actually running. Tomorrow I will get it running again and check for it.
 
Love the GL's wish I could find a 1978 to replace the one I had bought brand new.
That bike was a blast to drive.
Good luck on the build look forward to seeing the progress.
 
Prepare for ventilation rant!

So, Ben came over today and we went to work. Got it running and "idling" on it's own and discovered the left side (cylinders 2 & 4) were not firing. The exhaust is cold and if you pull the spark plug wires off that side it didn't change the way the engine ran. We got out his timing light and spark tester. Timing looked a LITTLE off but not bad. Both cylinders have spark. We thought we would adjust timing but figured we would check the cam timing and compression first just to rule those out.

Rotated the engine to the correct mark and looked at the marks for both cams. The one for the left side looked a little off so we loosened the belt tensioner, slipped the belt off and got it as close to perfect as we could manage. Went up to autozone and got a compression tester. Got back and discovered that it doesn't come with an adapter that will fit my spark plug hole.

Tried to fire the bike back up and now it won't run. It'll kinda crank up but sounds like it's sorta running on one cylinder but has NO throttle response. I mean when I turn the throttle nothing happens at all. Only way we could get it to stay running was to shoot some ether into the intake get it cranked and then hold the throttle open to about 3000 RPM, then it sounded like it did earlier today. If I let it drop below that it'd just go back to chugging on one (I guess), have no response to throttle and then die.

WTF!!!!??? This fucking thing!
 
when you adjusted the left side cam you threw the timing of the points plate off someone may have set the timing with

the belt out of whack either way if you moved the left cam you now have to recheck the timing in relation to tdc
 
I suggest re-checking the belts again. VERY carefully! One more tooth off and you run the chance of valve and pistons trying to occupy the same space at the same time. After being certain of the belts and rotating by hand (I use the emergency kick-start lever), re-set the static timing. Static timing of the GL1000, done very carefully, is actually better than with a light, and you don't have to either have the special plug or sling oil out. Something that took me an extra week to learn was to check the condensers. Mine were bad, and were letting the points rapidly erode and lose contact.

Sent from my LePanII using Tapatalk 2
 
I went and refereed a roller derby bout last night and then got drunk at the after party. I feel a little better now.

Once it warms up a little today I'm gonna go back out to the shed and try a couple of things on the bike. I am gonna recheck that timing belt but it's about as close to perfect as we can get it. For some reason the left cam never wants to line up just right with the marks but it's like a half a tooth off, no way to line it up perfectly and the belt actually fit on the pulley.

The bike has a Dyna S ignition so I'm gonna read up on that thing and try doing static timing on it.

Somewhere I've gotta find a compression tester that'll fit this thing and just make sure I've actually got compression on those cylinders as well.
 
The "Half a tooth off" symptom is common, use the one with the closest to the mark. Take a look at how the tenioner works. Put the belt in the tooth so once it is released and applys the tension on the belt it rocks it slightly towards the mark.
 
before i give up and let them go at a half tooth off i pull the crank pulleys and inspect them

the pulley has the keyway cut into it and it only goes half the thickness of the pulley

they are meant to shear in the event of a cam belt break i guess

but if they have ever come loose they rock back and forth on the crank then the key way wears real quick and then

the pulleys are out the half tooth

so for all the time it takes remove the crank bolt and inspect the pulleys and the crank key way

some have been so bad that they have worn the key way in the crank and i have had to turn a new pulley around

back wards so it is on a good part of the key way when i reinstall the pulleys
 
+1 to verify crank belt pulley.
It's a fairly quick check and if it is off, you'll never get it right until it's fixed...
 
Oh hi john. You have a goldwing. Guess I'm a tad late to this party! A very late congrats, and I like the mags
 
Seems like the left bank ain't got no compression. Haven't verified that, things just seem to point in that direction. Instructor at school says the rings could be stuck to the piston and soak it in Marvel Mystery Oil. It's soaking.

If that doesn't work I can always make a boat anchor out of it.
 
do a leak down test or compression test

it may just be that the head gasket is blown between the 2 cylinders or you have stuck valves
 
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