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Engine/Carb Parts Compatibility

  • Thread starter Thread starter Demonthrall
  • Start date Start date
D

Demonthrall

Guest
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 said:
What are trying to accomplish?
Click to expand...


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.
 
hampshirehog said:
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.
Click to expand...


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.
 
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
 
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....
 
TheCafeKid said:
If youve already drilled the baffles (probably wasnt a good idea, but, it IS your bike)....
Click to expand...

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!!
 
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?
 
Nessism said:
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?
Click to expand...

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.
 
81gs1100 said:
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.
Click to expand...

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.
 
Nessism said:
You catch on fast! Loud = BAD!!!!!
Click to expand...

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.
 
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.
 
81gs1100 said:
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.
Click to expand...
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.
 
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.
 
rustybronco said:
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.
Click to expand...

No, the statment is correct, just interpeted wrong. I was saying a pipe change will not change the mixture. In order to change the carbs mixture you need to make adjustments to the carb. The pipe will just flow differently in turn the engine may need more fuel to match the more air it is flowing. Yes, you have to adjust the carb to get the proper air/fuel ratio afterwards.

The guy said modifing the pipe will change the carbs mixture... It will not, the carb will retain the same as it always has, but the engine may require more or less air/fuel ratio after a pipe change making the engine run lean or rich.
 
Changing the pipe may or may not affect the volume or air flowing through the carb.
needles and jets are capable of flowing only so much fuel. if you change the air flowing through the carb you will be changing the mixture (A/F).

to properly run, the engine still requires the same A/F. that does not change.
 
Just to be devils advocate both rustybronco & 81gs1100 are wrong :lol:

Carbs rely on a vacum to suck the fuel/air mixture through them & into the engine, the scavenge effect created by the exhaust partly controls this ! drilling the exhaust will not change the carbs mixture settings as such but will effect the ability to scavenge effectively hence the probable need to rejet to suit ;)

tone :)
 
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