ok, 3 or 4 misc. questions


Information and questions on GL1100 Goldwings (1980-1983)
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oldgold82
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ok, 3 or 4 misc. questions

Postby oldgold82 » Wed Jul 18, 2012 8:18 pm



Alright, so first off I have a problem which I have posted about before. I have a hesitation under heavy load usually in higher gears 3,4,5 that when I open the throttle a good amout the motor falls on its face and then slowly pulls out of it. Quite a few people suggested that it was the carb slides, so I pulled the caps off and cleaned them (they were quite dirty) and it seemed to help but it is still there. There is a post somewhere on this site were someone showed on a bench how well they should slide but mine weren't quite that smooth so maybe I need to pollish them more or maybe look somewhere else? Runs great otherwise at idle and at speed

Also, the right side of my exhaust has a leak between the muffler and the collector that is slowly driving me nuts, is there a gasket in there?

Number 3. I just changed the oil for the first time and had trouble reading the site glass. I know it has the little wiper thing but I still cant hardly see anything. I saw someone on here had a dipstick conversion, where do I get one of those? Also, topping off the oil do I check the level while on the center or side stand?

Number 4. Do these things come with some sort of oddball spark plug size? I have both small engine and automotive spark plug sockets but neither of them fit. I know these are not original 30 year old spark plugs but maybe a metric OEM replacement?

Ok, thats all I got for now. Thanks



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littlebeaver
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Re: ok, 3 or 4 misc. questions

Postby littlebeaver » Wed Jul 18, 2012 10:09 pm

1. A major air leak in the vacuum advance unit may cause a serious vacuum leak at number three..pull the hose off the number pipe, block it off with something and ride it, if the problem goes away and you have full power back, then you know something new, if everything stays the same your problem is elsewhere, check intakes and the orings there.. .. .. Bad wires or coils maybe.. could be many things. sounds like a vacuum leak to me.. 2.[exhaust] Yes, there are copper crush gaskets that are at the headers for the exhaust, can be bought on ebay or the honda shop.. 3.[oil dipstick] JC Whitney used to carry these but I don't know if they still do.....4. I think it's 18mm on the spark nut.. good luck.. :D

oldgold82
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Re: ok, 3 or 4 misc. questions

Postby oldgold82 » Thu Jul 19, 2012 5:50 am

littlebeaver, I think you are on to something with your assesment of a vacuum leak. The problem was something that seemed to start happening out of the blue and the more I ponder it the more it makes sence. I've done a few searches on this site and, correct me if I'm wrong, but the vacuum advance is not related to manifold vacuum but total air flow in the manifold? I'm not really sure how that works, but I can deal with that. I didn't find many good pictures of what I'm supposed to be looking for and don't know where really any of my vacuum lines are routed or where this "cannister" is that appears to be a common problem, or for that matter where this vacuum is even sourced from. You said you to pull it off of number 3, is that off the carb somewhere or the manifold? Thanks again for the help, it is HUGELY appreciated.

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Re: ok, 3 or 4 misc. questions

Postby detdrbuzzard » Thu Jul 19, 2012 6:33 am

jc whitny still carries the dip stick kit, i just got one for my nieces wing
'99 ST1100, '93 se
'75 cb750k, '79 cb 750f, '79 cb750 superK
cb 450sc, sunL70
'06 st1300a
.... william

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Re: ok, 3 or 4 misc. questions

Postby scotterichmond » Thu Jul 19, 2012 8:21 am

I will be watching this post very close, because I have the exact same issue. I found that if I drop a gear I can go through it , or back off the throttle and get back on it , I can work through it too !

Scott

P.S. do you have the Honda manual?

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scotterichmond
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Re: ok, 3 or 4 misc. questions

Postby scotterichmond » Thu Jul 19, 2012 9:32 am

Ok I tried some things to isolate the system that is causing this issue. I am pretty sure it is not a fuel issue. I gave it full throttle at 50mph and it acted up, I pulled the choke some and it was worse. Tried shutting off the fuel to lower the level in the carb, mno change, (aqt any lowered level of fuel)
So it is either skark , coils , wires/ resister ends ( good plugs , perfect color) or vacuum/ timing? maybe.

just sometime you could try too !

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littlebeaver
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Re: ok, 3 or 4 misc. questions

Postby littlebeaver » Thu Jul 19, 2012 11:47 am

The PG pulse generator is located on the rear of the engine, The vacuum advance is part of that unit, I would test the unit for sure... So how do you do that without a special hand pump...get the engine running, pull the hose on #3 carb that goes to the PG unit, hold your finger over the pipe on the carb and suck on the hose that goes to the PG and listen to see if the engines idle goes up..If it does then your vacuum advance is probably ok if not it's blown out...., but if you want to test it proper use a mitty vac type hand pump on it to see if it's holding a vaccum..Heres a photo of one that's been taken apart..

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Re: ok, 3 or 4 misc. questions

Postby virgilmobile » Thu Jul 19, 2012 1:05 pm

This is for a point of interest only.
The gl1100 carbs vacuum advance system is not manifold vacuum.is is air flow vacuum and is ported to all 4 carbs behind the slides.
The vacuum line has near 0" of vacuum at a idle and will go to near 5" at a open throttle.
This line advances the timing further than the bikes mechanical advance system.
The pulse coils are fixed fm one spot and can not be adjusted.If the idle timing is off, it is adjusted by the vacuum canister coupler shaft( turning the canister)

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Re: ok, 3 or 4 misc. questions

Postby littlebeaver » Thu Jul 19, 2012 2:24 pm

Yes, and especially under a load the vacuum advance kicks in .. I rebuild the entire unit and used a diaphragm and canister out of a v8 and it works perrrrrfectly... :lol: My timing marks are perfectly set too [turned canister ]..I learned a lot playing around with these units..Bike runs well too..Now I have install after market coils out of a 04 dodge Neon.. :shock: :shock: I need to test ride it today..It might or might not melt out my spark ignitors in my 81, but it's a test..I will never really know if I don't try it for myself.. :D

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Re: ok, 3 or 4 misc. questions

Postby virgilmobile » Thu Jul 19, 2012 3:24 pm

One last thing I'll say,I ran the 1100 for 8 years.it only really ran exceptionally well after I fixed the leak in the vacuum canister AND polished the slides and caps till they stopped sticking.I did show this in a post video of what they should be like.After assembly,one slide was still sticking(I use a shop vac to test them) so I rotated the cap 180* to free it up

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littlebeaver
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Re: ok, 3 or 4 misc. questions

Postby littlebeaver » Thu Jul 19, 2012 7:02 pm

Fella's I have learned a lot from this man, he speaks the truth....My 81 ran like crap until, like virgil said he fixed the vacuum advance and more than likey cleaned up the spark advancer with some brake cleaner,, Lightly oil it too..I did that , then I cleaned the slides like Virgil said, and I pulled the slow jets and cleaned them, and I set the timing, and I set the float heights, and changed my plugs and wires, and fired that girl up, then I balanced the carbs with a sync. gauge and I'm good.....I have 14.32 at idle now with my conversion...And I ran the bike with the 04 neon coils tonight and it ran like a raped Ape..no kidding, I was in 3rd and looked down and I was going 75 already, Santa Maria :shock: I was moving..Ignitors are pretty warm though..they are not melting out yet though... :lol: :lol: I will test it like it is..

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Re: ok, 3 or 4 misc. questions

Postby virgilmobile » Thu Jul 19, 2012 7:23 pm

I thought my 1200 was fast.The nut that test drove my 83 pulled away frpm me like I was dragging an anchor.Crazy coonass had the nerve to tell me it wiggled a little above 85 mph but smoothed right out after he pegged the speedometer.The dial only goes to 85
This was a 1 mile test drive too.
I didn't sell it to him.What a nut job,he'd probably would have blamed me for every ticket he got on it.

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Re: ok, 3 or 4 misc. questions

Postby littlebeaver » Thu Jul 19, 2012 7:49 pm

for those that don't know it, Virgil is from Louisiana, if Virgil said he was a crazy Coonass you can bet your bottom dollar he was.. There are some really wild folks there in La. :lol: :lol: I can't say enough good things about Virgil, I've learned a lot of good stuff from him..You guy's listen to him because he has never steered me wrong. Him and WingAdmin. have really good track records for that.. Virgil I'm working on a extractor tool for the idle jets on the 80'-81 models..I think you'll like it..I am currently waiting on a set of old carbs to test my tool on..I will have four jets to pull that have been there for some time now..What a test.. :D these carbs are are in aweful shape..

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Re: ok, 3 or 4 misc. questions

Postby scotterichmond » Thu Jul 19, 2012 9:37 pm

I have tested my vacuum advance it is bad(just sucks air and won't hold a vacuum)
How is it changed and where can I get one? Do you have to pull the engine?

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littlebeaver
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Re: ok, 3 or 4 misc. questions

Postby littlebeaver » Thu Jul 19, 2012 10:13 pm

You can find a canister on ebay, I would ask them if they have tested it and will it hold a vacuum first though...Many guys have removed these and operated on them, they have patched the holes in the diaphragm..put it this way fella's out of ten that I opened up I have found holes in nine of them..they age and get holes some holes are large..If your vacuum advance is no good then you should just go ahead and plug the pipe at number three or the hose, so your not sucking just air..that will be fine until you get the PG fixed all proper and such..How does one remove one...two ways ...pull engine or pull swingarm..I just pull the swingarm.. Now some on another site are claiming they can just take out the pivot bolts to the swingarm and get it out that way. but I remove the whole thing....But that's me I don't like fighting with stuff..Can't buy these new anymore..Might just have a small hole or a large one..open it up and you will see..

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Re: ok, 3 or 4 misc. questions

Postby virgilmobile » Fri Jul 20, 2012 7:57 am

I'll make one suggestion....When you remove the whole assembly from the engine,scribe a line from the pulse coil mounting plate all the way to the casting.

The reason....When the vacuum canister is removed,the connecting shaft it threaded onto it.When it is replaced,the marks will allow you to set the pulse coils(timing) exactly where they were.

Just 1 turn of the canister can change the timing a few degrees.

The "mechanical" part of the ignition advance system should be removed,cleaned and lightly lubed.
****** Be especially watchful of the tiny guide pin in the shaft that keeps the mechanical advance locked in place*****
Mine was pointed down and fell to the floor..I didn't see it at first.I just noticed it was missing when I went to put it back on and the mechanism just spun around.

And also,the mounting plate for the pulse coils rides on a ring of bearings in the casting.They need cleaning and a touch of oil too.Mine were rusted solid and the vacuum wouldn't move them.
They don't rotate very far,maybe 10* or so,whatever the stroke of the vacuum canister is.

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Re: ok, 3 or 4 misc. questions

Postby scotterichmond » Fri Jul 20, 2012 8:20 am

next question.
is there going to be any adverse effect riding the bike with the hose plugged . I would think the timing just would not advance the little extra you need at the right time. ( just till I can fix it properly)

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Re: ok, 3 or 4 misc. questions

Postby virgilmobile » Fri Jul 20, 2012 8:42 am

Nope.You just won't get the full benefit of the max timing advance....but you didn't have that anyways.
Not plugging the hole won't make a difference either.Been there done that exact thing.
The hose that goes into #3 carb is just where it enters the system.The port is routed through the plenum to each carb and pops out a little brass tip just inside the inlet.

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Re: ok, 3 or 4 misc. questions

Postby scotterichmond » Fri Jul 20, 2012 8:47 am

So bottem line here is if I want to get rid of the BWAHHHH with wide open throttle and a load I need to change the advance device?

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Re: ok, 3 or 4 misc. questions

Postby virgilmobile » Fri Jul 20, 2012 9:18 am

Bottom line.
If you want it to run like OEM
Make it OEM
If the timing isn't working right,fix it
If the slide pistons stick,fix it
Etc, etc
Get it back to factory specs and it will run that way.

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Re: ok, 3 or 4 misc. questions

Postby scotterichmond » Fri Jul 20, 2012 10:21 am

virgilmobile wrote:Bottom line.
If you want it to run like OEM
Make it OEM
If the timing isn't working right,fix it
If the slide pistons stick,fix it
Etc, etc
Get it back to factory specs and it will run that way.

Agreed 100 %

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Re: ok, 3 or 4 misc. questions

Postby virgilmobile » Fri Jul 20, 2012 10:43 am

Just to be clear.OEM to me means within factory specs.even if I have to use aftermarket parts or a fizbit bearing from a 37 Whipit.this includes the mods I do.certainly the electrical system was better when it was brand new.I just restore it to OEM.I might have to rig up something,but the end results are the same

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Re: ok, 3 or 4 misc. questions

Postby littlebeaver » Fri Jul 20, 2012 11:26 am

Me too, that's why now I have 14.23 at idle with everything justa blastin away [Alt. Conversion] I also mod. that vacuum advance as said earlier, If you you don't block it off it can and will suck in dirt and dust..Don't need that...Here's a photo of my mod. canister for the vacuum advance, I had to change out the spring in it and refasten the arm that activates the system,, yes I had to do some figuring and tapping and dieing but it works well oh and measuring too... :lol: I just fastened the bottom section of the oem canister to the after market one..I used JB Weld to seal it back, It has been on the bike and working for a few years now with zero issues...Or you can just patch the holes...
maybe yours looks like this
maybe yours looks like this
Attachments
after market vacuum advance for a v-8
after market vacuum advance for a v-8
Last edited by littlebeaver on Fri Jul 20, 2012 11:35 am, edited 2 times in total.

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Re: ok, 3 or 4 misc. questions

Postby WingAdmin » Fri Jul 20, 2012 11:30 am

I see nobody addressed this, so...oil should ALWAYS be checked/filled/topped off when the bike is on the center stand, not the side stand. Filling the oil on the side stand will cause the crank case to be drastically overfilled, which can cause damage to the engine.

As for plug types, have a look at this thread: Recommended spark plugs. I personally always use NGK's, and I got my 1100's plugs at the local NAPA store.

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Re: ok, 3 or 4 misc. questions

Postby echinus1988 » Sat Aug 08, 2015 10:15 pm

I just started reading through this subject because I have been told I most likely have a vaccuum leak.

1982 GL1100 Aspencade. rebuilt carbs using randackk kit.

I have been told I have a classic vaccuum leak. Idle won't set right, it's either too fast or too slow, misfire at speed when I crank the throttle. So I sealed the carb runners and made sure those didn't leak.

So I can't find the leak, I finally sprayed back at the pulse generator and viola! The engine revved. I changed location and hit it again, this time spraying away from the carb area. It revved again. So I have my hopefully last leak narrowed down to the advance on the pulse generator.

So I think I saw Little Beaver rebuilt hers? Is this a fairly easy process or better to find one? Does sucking on the tube actually work to increase engine speed and verify if the advance is actually working or not? I'll try anything to verify before I decide to pull the engine or the rear wheel/swing arm/etc... I actually have taking the engine out down to about 1.5 hours and 1.5 to put back in. Just a pain.

If I can ask, I am having an over heating problem on my 1980 GL1100. I just ran a cleaner through it today but I checked my water pump and it wiggles back and forth. I would think it shouldn't. I pulled it hoping to verify but I can't really tell. Should it wiggle or be firm, not movable? I have seen antifreeze on my floor but thought it was because I didn't have a new seal, maybe the weep hole though now that I think about it. So I am looking at replacing the water pump and hope that may affect my over heating problem. If the cleaning and pump dont, then I assume I will have to pull the radiator and have it cleaned out. The Aspencade has no heating problems so I do know how it should work.

Thanks for any help as usual. This is a great site!




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