Engine/Carb Parts Compatibility

[Demonthrall]

What engine/carb components could I just "drop in" my 82 GS550L?

-I assume any of the 1982 GS550 carbs/engine parts would be compatible

I am basically looking for a whole engine/parts bike if possible, and want to make sure I am not ruling anything out if possible.

Also, other than engine mounting, is it out the question to drop a 750 right in place? thanks

[Rudeman]

What are trying to accomplish?

[hampshirehog]

All the 550 stuff swaps right over. Squeezing a 750 lump in there is a lot of work - I've had a look at it but it ain't worth the effort. Easier to put on a 650 top end by the looks of things - I haven't done it but- check out this thread:

http://www.thegsresources.com/_forum/showthread.php?t=84029

And Suzuki Don is doing one at the moment.

[Demonthrall]

What are trying to accomplish?

One of the "bolt holes" on the engine crossthreaded and cracked off, so now there is an exhaust leak from one of the exhaust places. Used some aluminum putty to fix it, but it looks awful. Also, the top gasket was leaky, so I removed it and laid down a new gasket. This gasket now leaks, lol. I am new and learning still.

With winter coming in MN, I would like a parts bike so I can really dig in to this thing and take away some of the issues it has.

I figured while I was at it that I might not pass an oppurtunity to upsize anything.

I drilled the baffles and plan to do pods, followed by a rejet. I guess I am looking to squeeze all the horsepower out of it. A lot of people would say I should just sell it and get a 750 or something, but I dont even know If I could get a good price without some of the above issues fixed.

[Demonthrall]

All the 550 stuff swaps right over. Squeezing a 750 lump in there is a lot of work - I've had a look at it but it ain't worth the effort. Easier to put on a 650 top end by the looks of things - I haven't done it but- check out this thread:

http://www.thegsresources.com/_forum/showthread.php?t=84029

And Suzuki Don is doing one at the moment.

That does look like too much work. I guess I was wondering if a 650 or 750 would drop (as a whole) to fit my carbs and everything. I guess this means no.


While we're at it, are there any other gas tanks that would fit mine? Its just got those two grommets in the front.

[Demonthrall]

Basically I need a 1982 GS550 of some sort, right? I know the carbs have to be VM, but I wish I could get a different tank on there too

[TheCafeKid]

The 80-82 550 motors, whether from an E or an L, will interchange...You say yours has VM type carbs?? I dont think so if the engine is from the year you say it is. In 1980, ALL Suzuki bikes were using BS (cv) type carbs...Your bike likely uses BS32SS carbs..

If youve already drilled the baffles (probably wasnt a good idea, but, it IS your bike) and plan to go with pods, you will need to rejet NOW, rather than later, as it likely wont start at all without a rejet, and if it does, it will be VERY lean, and cause major problems. A Dynojet kit, if there is one made for your bike, is the BEST bet, as jetting the CV carbs by hand is an exercise in futility. If there ISNT a DJ kit made for your bike, you could run into some serious bad times....

[81gs1100]

If youve already drilled the baffles (probably wasnt a good idea, but, it IS your bike)....

Why isn't it a good idea? Who died and made you the opinion king?

By the way, I seen a pic of your bike cafe... (problably wasn't a good idea, but, it IS your bike)

Opinions are best kept to yourself, unless asked for!!

[Nessism]

I'll go on record as saying drilling out the stock muffler is a bad idea in my opinion. It will increase noise which is bad for all those that have to listen to your noise, it will change the carb mixture which means the bike won't run right until the bike is rejetted, and quite possibly the muffler durability will suffer by randomly drilling out metal. Just me of course but hogging out the muffler so it will make more noise is hack work. What's next, removing the shocks and installing struts?

[81gs1100]

I'll go on record as saying drilling out the stock muffler is a bad idea in my opinion. It will increase noise which is bad for all those that have to listen to your noise, it will change the carb mixture which means the bike won't run right until the bike is rejetted, and quite possibly the muffler durability will suffer by randomly drilling out metal. Just me of course but hogging out the muffler so it will make more noise is hack work. What's next, removing the shocks and installing struts?

So what your saying is you don't like loud pipes?

All Im saying is that opinion was not needed to get the point across. I'm just sick of everyone putting down anything they don't like themselves. (Not all on here, but life in genral) The guy was asking for fittment help not if anyone thinks his pipes are cool, a simple suggestion to rejet would have served best.

Now if it was a safety issue, like hey I just drilled holes all over my frame, its way lighter now.. GO ME!!! Then maybe a "Sir, that might not be a great idea.." followed by your reasoning.

But just because you don't like a loud untuned pipe doesn't make it a bad idea. BY the way it will not change the carb mixture, it will only change what mixture the engine needs to run well.

And once rejetted, the holes are brazzed shut and pipe rechromed the only thing is the sound. So do you think buying a Harley is a bad idea because they make noise? Oh and some Harleys are hard tails, so more reason its a bad idea to buy one.

[Nessism]

So what your saying is you don't like loud pipes?

So do you think buying a Harley is a bad idea because they make noise? Oh and some Harleys are hard tails, so more reason its a bad idea to buy one.

You catch on fast! Loud = BAD!!!!!

Oh, and Harley's do NOT make noise until some of the idiot owners remove the quite stock mufflers and install loud pipes, and Harley does NOT make hardtails, only bikes that LOOK like hardtails.

[81gs1100]

You catch on fast! Loud = BAD!!!!!

Loud is only bad sometimes..

7am at the track when the time trials begin at 10am.
When some POS blows your helmet off at a stop light on his POS Harley.
When trying to sleep.

Loud is good..

During sex.
And the other 23 hours 56 minutes and 44 seconds of the day.

[Demonthrall]

I drilled the baffles because it was silent and dangerous. I am 225 lbs, and with a 550cc motor, I cant really blast out of danger situations in traffic, so adding some noise to my bike increases my chances of not getting killed while in someone's blind spot.

It also made it throatier, which does sound better IMO. I fiddled with the mixture screws and it seems to be running fine at this point.

They do indeed make a jet kit CAFEKID, it is about 100 bucks, so I think I will pursue that this winter. Thank you very much for letting me know that anywhere from 80-82 are the same 550 engines, that is useful. Like I said, I am just looking around for part bikes right now.

I probably am mistaken about which carbs. My Clymer shows instructions for both, so I bet I am just confused.

[rustybronco]

But just because you don't like a loud untuned pipe doesn't make it a bad idea. BY the way it will not change the carb mixture, it will only change what mixture the engine needs to run well.

You may want to reconsider this statement. the engine requires a proper A/F ratio.
drilling the pipe may or may not change the AFR.

[mighty13d]

81gs1100,
TCK was just trying to help because as a rule, CV style carbs are a real PITA to jet right with a high flow exhaust and pods. If you read pretty well any post about trying to jet them, you will see how much of a pain it is. I know you've been around here long enough to read a few. Wouldn't it be easier to let someone know NOW how much of a long journey he's in for before he really gets into it? I know I appreciated it before I tried to throw pods on my 850.

Plus he didn't just come on and say someone was making a 'bad' decision and then leave. He gave him the information that he needed. Please cool off with the attitude. There wasn't any reason for the attack.