All GS1150 owners please take one minute

[Anonymous]

Thankyou very much for digging up those torques for me W.o.D. Im sure I over tightend them. That cant help matters. Im new to the internet and still think its cool Im talking to someone in Australia. Whats the weather like where you are. Can you ride all year. Its just getting warm enough here to enjoy a ride. Talk to you later. oh and Gday Eh. LoL

 

[WifeofDink]

Thankyou very much for digging up those torques for me W.o.D. Im sure I over tightend them. That cant help matters. Im new to the internet and still think its cool Im talking to someone in Australia. Whats the weather like where you are. Can you ride all year. Its just getting warm enough here to enjoy a ride. Talk to you later. oh and Gday Eh. LoL

This internet thingy is cool isn't it, you think talking to Australia is cool talking to people in the US is even better 8)
It's raining here at present and we have had one nice day in the last 2 weeks, the forecast for the next week is rain, rain and more rain but we do ride all year round.
Howdy right back at you

 

[Hap Call]

...the component of the main clutch which has the springs on the back has rotational play in it. do you think that could cause this kind of vibration. I will eventually buy one if I keep the bike. I think they are around $250.00 but I dont want to spend that right now unless I was reasonable sure this peice would help.

You should not be able to rotate that gear at all by hand. APE will rebuild your clutch basket for about $200 plus S&H. I am surprised you have not heard an clutch rattling if that basket has play in it. Mine rattled like a box of marbles until I replaced it.

Hap

Hotrod, I started to think some more about what you had said about the component of the main clutch having rotational play...I want to make sure that we are talking about the same rotational play. The clutch basket (that is the part that has the springs on the back) will have some rotational play as a whole unit if you rotate it. This is because of gear backlash between the primary gear on the crank and the primary driven gear on the clutch basket. The Primary driven gear should NOT have any rotational play in relation cast aluminum part of the clutch basket because it is riveted to the clutch basket. These rivets have been known to come loose.

I do not want you to put out a lot of money on something that is in perfectly good shape just because I did not explain it very well or because I misunderstood what you were talking about!

Hap

 

[David Price]

Hotrod, I have a 85GS 1150E and I don't think mine vibrates at all. But it has what I describe as a buzz as I go up through the gears and rev's. It seems as though I can hear it as well as barely feel it,as a slight tickling in my hands. We may be talking about the same things, I don't know. But in any event, I hope you get to the bottom of it. .
Good luck, David

 

[Anonymous]

The vibration from my 1150 is surely the engine. Something connected to the crankshaft. By buzz, I think Hotrod ment a real fast vibration, not a buzzing sound. The vibration from my 1150 is a much faster vibration than from a tire out of balance, also much faster than the clutch hub would be turning, apprx. half the speed of the crank. It seems some 1150's, like mine and Hotrod's are very bad vibrators, some, like Dink's, noticible, but not too bad, and others like David's, barely noticible. Just a thought, has anyone replaced the pistons in an 1150? If so, did they notice any change in the vibration? I've ridden all sorts of GS's, and owned at least 10. This is my first 1150, I've wanted one since 1984, and am very happy with it now that I have it, but the vibes are very annoying, and the seat doesn't fit my butt near as well as the seats on any of my other GS's. I have an "83" 1100 E, that is a much more comfortable ride, no vibes, a great seat, more comfy riding position, But I still ride the "1150" most, I think it just makes me feel more macho and powerful. Any ideas? please help; Hotrod and I need it

 

[Anonymous]

Hi Hap everythings fine we are on the same page. And thanks for the concern. The play is between the basket and the attached gear. and Ican move it probably 0.150 in. Didnt take the time to look closely at this assembly so Im trying to picture what the springs do if the two peices are rivited together. Also trying to imagine how this play could become my nasty vibration but only starting at 3500 rpm. David you make me jealous. I can feel all the Potential in this bike and know I would love it if I get it sorted out. rphillips thanks for the reply. Does your vibe start at 3500 like mine. My bike is actually quite smooth up to that point, I can ride quite comfortably at 85 kph. (just over 50 mph) but thats it.

 

[Anonymous]

I tore apart the worst one of my two baskets, now I understand exactly how they work. I have a couple more questions for you all to consider. If I machine up some bigger heavier handle bar weights will it decrease vibrations further?.
My rotor is damaged to the point that I cant remove it with a factory puller, any ideas how to get it off. If worst comes to worst, I can destroy it to get it off because I have another one.
And some one mentioned in an earlier post about foot peg weights. Niether of my bikes have them. Can some one describe what they look like because I can easily make something up at work. Thats all for now and thanks again.

 

[Anonymous]

I tore apart the worst one of my two baskets, now I understand exactly how they work. I have a couple more questions for you all to consider. If I machine up some bigger heavier handle bar weights will it decrease vibrations further?.
My rotor is damaged to the point that I cant remove it with a factory puller, any ideas how to get it off. If worst comes to worst, I can destroy it to get it off because I have another one.
And some one mentioned in an earlier post about foot peg weights. Niether of my bikes have them. Can some one describe what they look like because I can easily make something up at work. Thats all for now and thanks again.

 

[Anonymous]

1150 vibration continued.

1150 vibration continued.

I tried to post this in the other 1150 vibration post I had going but it would'nt go............ this is in response to the last post in the previous vibration topic. I tore apart the worst one of my two baskets, now I understand exactly how they work. I have a couple more questions for you all to consider. If I machine up some bigger heavier handle bar weights will it decrease vibrations further?.
My rotor is damaged to the point that I cant remove it with a factory puller, any ideas how to get it off. If worst comes to worst, I can destroy it to get it off because I have another one.
And some one mentioned in an earlier post about foot peg weights. Niether of my bikes have them. Can some one describe what they look like because I can easily make something up at work. Thats all for now and thanks again.

 

[Anonymous]

sorry about the triple post, my screen said "no post for this topic" and I didnt know what was going on.

 

[Anonymous]

I own a GSX1100EFE (GS1150) and the only hassle I've had with bad vibes was with the front fairing, so I removed it. Now there are no rattling sounds and I can see so much, the stock fairing really does block your vision I found. Windblast isn't a problem it just makes riding more exciting!!

 

[Anonymous]

1150 vibration, specific cause or normal?

1150 vibration, specific cause or normal?

I'll throw out my two cents.
I recall hearing some info on the big bore kits available(1600cc @ up)
The thing that stuck with me was hearing ' you don't have to rebalance the crank with this kit'.
If you take this statement to its' logical conclusion you reason that the two inner piston sets at bottom dead center counteract the weight of the two outboard pistons at top dead center.
Quaint theory but obviously the vibration is increased but of a different type.
If you accept this reasoning that means when Suzuki developed the 1150 they did'nt compensate for the increased weight of the larger pistons by adding weight to the crank opposite to the piston.
The guys in the bike shop next door to my work rode these when the 1150s' were new and noticed this also. They say the 85 models were indeed rebalanced and vibrated much less.

 

[kz]

Hi!

I have big vibrations coming from the engine at my GS 1150/GSX1100 -84. The vibrations are so inconvenient that I avoid to drive at that speed.

At other speeds the bike runs real good.

The vibrations come between 108 - 122 km/h in 5:th gear.

The bike has the following history and the vibrations have been the same all the time.

1. I bought it as an EF with full fairing
2. I rebuild it with original part to an E-model without fairing
3. I replaced the clutch basket to a new one (due to the inner steel ring was loose)
4. I repaired the starter clutch and had to remove the rotor, so it is now mounted in an other position
5. I have had different type of tires (due to normal change)

All of this didn?t have any effect on the vibrations at 108 - 122 km/h

Hope you at least can make conclusions what not has helped.

 

[Carter Turk]

1150 Vibrations

1150 Vibrations

I have 2 1150's, one in an 83 1100 frame, with rubber mounts added, and one in the stock 1150 frame from 84. Both are 84 motors but the one on the 83 frame was beaten and crashed by the previous owner. The other only had 9K on it.

The beaten engine, I sent the crank to Falicon for super crank mods. I also had the stock hub reinforced at Falicon. Still after all this work, it still vibrated. Much more than my older 80 1100ET. The 9K engine is much smoother, but still a vibrator.

Somebody in these 3 pages of posts asked about using different pistons. I have MTC pistons installed. They have very long skirts with ceramic buttons instead of wristpins clips. They are 1230 pistons, that weigh roughly the same as stock. With these installed, the bike actually feels smoother than before. The vibes are still there, but are a deeper harmonic, more pleasant to live with.

Above about 83 mph (5000+rpms) vibes smooth out considerably on both bikes, almost to a point where you're wondering what's going on, why is it so smooth now, at this speed?

My rotor nut came loose once along with the magnet exploding, which caused vibration. 2 starter clutches broke all 8 mm allens. My clutch bolt loosened to finger tight, eventhough the locking tab was still bent over. All these instances caused noticeable vibration increases. Upon inspection of the latter, my inner clutch hub, the part that holds all the plates, is just hammered. Dents galore plus the splines that line up the hub on the shaft have widened. Time for a new one of those.

A gearhead friend also mentioned the size of the wristpins in the 1150 versus the 1100 as being larger causing more vibration and thus the need for rubber mounts. I also heard as someone else mentioned here about torquing the motor mounts so that the engine is sort of floating in the mounted postion, not leaning hard against any one set of mounts when torquing to spec. I
enjoy reading all the posts about our bike. Thanks Carter