Question about 1980 Suzuki Gs 550 L

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1980 GS550L Suzuki idling to high

When i start my bike, it idles to high. about 3 to 5000 rpms,how do you adjust the idle

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  • 168 Answers

Some bikes have idling screw on carb.have you check to see if your carb booths are seated and not sucking air.

Posted on Jun 12, 2014

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: Idle adjustment

If there is not a screw on the side of the carb then look at the top of the carb where the throttle cable connects. The fitting at the top of the carb is threaded and would adjust the carb idle. There may be a similer adjustment at the twist grip but I don't remember one there.

Hope you can rate this solution as a 'FixYa'

Posted on Mar 21, 2009

defadad
  • 351 Answers

SOURCE: Won't idle especially when hot.

not real sure but you may be sucking air from a hose or loose manifold





















Posted on May 23, 2009

  • 3567 Answers

SOURCE: Idle adjustment

OOPS< I forgot to give the site for the manual. :)

http://www.carlsalter.com/motorcycle-manuals.asp Most of the manuals are in English but some are not. There is no way to be sure without doing the download. You can always delete it if in a foreign language.

Posted on May 26, 2009

  • 52 Answers

SOURCE: leaks gas

the needle and seat in the carb isn't seating. First, shut off the petcock, and drain the fuel bowls with the screw on the bottom of the bowls. Let all the gas drain out of the bowls.Tap lightly on the carb with a small hammer, the refill the carbs, see if it still leaks. if it does, you need to pull the bowls off, remove the float and clean out the needle and seat, and put it back together

Posted on Jun 10, 2009

  • 3567 Answers

SOURCE: Proper start-up service for a 1980 Suzuki GS550L motorcycle.

Shoot WD40 into each cylinder to get them wet.
Change gearbox oil and oil filter. Use 10w40 motor oil in the gear box. Don't use any synthetic oils, oil marked "EC", or oil with "special" additives. Stick with the major brands; Pennzoil, Quaker State, Mobil or Shell. How bad is the rust inside the gas tank? I would consider a liquid tank liner if rusted. Google “ kreem fuel tank liner “ or go to www.http://www.4secondsflat.com/Fuel_Tank_Sealer.html

  • Lube chain or get a new chain (if needed)
  • Lube Throttle, clutch and front brake cables
  • Lube Speedometer cable
  • Grease the swingarm, axle and steering stem bearings.
  • Install a new battery
  • Clean, and balance the carbs. This will be the problem area. They will likely be gummed up pretty good. Be sure to install an in-line fuel filter before starting the bike.

Posted on Jun 11, 2009

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1 Answer

My Suzuki gs550l idles too low. How do I adjust the idle?


Hi Austin look for a metal knob between the middle carberator's turn it clockwise to raise the idle speed. Regards Jim...

May 03, 2015 | Suzuki Motorcycles

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Adjust carb idle


normal setting is achieved by turning the screws in till they stop then turn out 1 1/2 to 2 turns
if you have 2 screws set the same
start the bike and then adjust each screw in until you hear the rpms drop then turn out until you again hear the rpms drop the setting is 1/2 the number of turns beween in to die and out to die
do the same with the second screw and alternate until you have both screws set in the middle
you may have to adjust the idle setting as you do it as the fuel mixture will alter teh idle setting

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How to adjust the throttle slack on a 1980 gs550l suzuki


Don't ask such questions here is advisable to you, as setting your vehicle on anybody else's remote instructions maybe of harm to you and your vehicle, I'll suggest you to contact a Professional Mechanic to do so, he'll need your own experience at both RPMs and then will set one to your choice, according to your Test Drive at both.

Apr 26, 2014 | 1980 Suzuki Gs 550 L

1 Answer

My 1980 GS550 Suzuki idles to high, about 3 to 5000 rpms. how do i adjust the idle.


adjust off the cable so its slack ! then between the carbs there should be the idle adjuster screw and back it off till rpm is about 700 ! rev engine and see if it returns ok ! ? if not then remove carbs and free off the butterflys etc etc !

Apr 19, 2014 | 1980 Suzuki Gs 550 L

1 Answer

I recently bought a Suzuki gs 550 and need to reduce idle speed i don't know how to do this at the carb


the idle adjustment screw is located between the number 2 and 3 carburator float bowls bottom rear. I can bairly get my hand on it, but found that a flat blade screwdriver works fine for making ajustments. backing out the screw lowers the idle speed, while running it in increases it. To adjust make sure the motor is warmed up and the choke is off. Make adjustments from the right side (looking at bike from the back), by pushing with the screwdriver on the knurals of the adjustment knob, pushing knurals up backs the screw out, conversly down runs it in. Try for around 1000 rpms for your set speed. You want it to idle smooth and low, but you want it set so it won't die out when you come to a stop when you are riding. If you can not get the idle in this range, then there is some other problem needing attention. However, the idle at times may run a little bit higher than normal when you come to a stop after a hard ride, and should return to normal set speed after it cools down some. You should also make sure that the throttle cable is set at the proper tenion, if too tight, you won't be able to lower the idle. you may have to make adjustments a few times to get it right.

Jun 12, 2011 | 1980 Suzuki Gs 550 L

2 Answers

SUZUKI RF 600 R, problem with idle speed and cold start, i cant control trotle at idle speed, at higher rpm the engine is working without problem but when i rellease the trotle engine is stop. What can i...


If the bike starts up and the idle speed creeps to high revs all on its' own, this indicates an air leak somewhere between the center throat of the carb and the cylinder head. This is normally a rubber seal or rubber manifold that is old, hard and cracked. I am sure the carbs need to be cleaned, remounted and adjusted. This is a nightmare for the novice mechanic. Replace all rubber fittings and seals including hose fittings and hoses.

Aug 13, 2010 | 1995 Suzuki RF 600 R

2 Answers

Idles high drops to normal then increases again


either a vacuum hose has come loose or is worn/cracked, or you might have a leaking head gasket.
when engine is running at a normal idle,... spray some carb cleaner around hose fittings and the intake manifolds one carb at a time..if the idle goes up..there's your problem.

Oct 03, 2009 | 1998 Suzuki GSX-R 750 W

1 Answer

Proper start-up service for a 1980 Suzuki GS550L motorcycle.


Shoot WD40 into each cylinder to get them wet.
Change gearbox oil and oil filter. Use 10w40 motor oil in the gear box. Don't use any synthetic oils, oil marked "EC", or oil with "special" additives. Stick with the major brands; Pennzoil, Quaker State, Mobil or Shell. How bad is the rust inside the gas tank? I would consider a liquid tank liner if rusted. Google “ kreem fuel tank liner “ or go to www.http://www.4secondsflat.com/Fuel_Tank_Sealer.html
  • Lube chain or get a new chain (if needed)
  • Lube Throttle, clutch and front brake cables
  • Lube Speedometer cable
  • Grease the swingarm, axle and steering stem bearings.
  • Install a new battery
  • Clean, and balance the carbs. This will be the problem area. They will likely be gummed up pretty good. Be sure to install an in-line fuel filter before starting the bike.

Jun 11, 2009 | 1980 Suzuki Gs 550 L

1 Answer

Leaks gas


the needle and seat in the carb isn't seating. First, shut off the petcock, and drain the fuel bowls with the screw on the bottom of the bowls. Let all the gas drain out of the bowls.Tap lightly on the carb with a small hammer, the refill the carbs, see if it still leaks. if it does, you need to pull the bowls off, remove the float and clean out the needle and seat, and put it back together

Jun 10, 2009 | 1980 Suzuki Gs 550 L

2 Answers

Bike won't stay running without the choke out.


I also own a 1980 GS550L that had a similar problem, first thing I did to fix it is to add a can of seafoam to a half of tank of gas or less. The bike can run on pure seafoam if needed. Let it run for 3-5 minutes and shut if off. Let it sit for another 5 minutes then start the bike and take it for a ride. After 20 or 30 miles go ahead and fill the tank up with gas. Within a tank or so you should start noticing it idleing better and more power. On the GS550 the choke self adjusts as you use the throttle. There is no need to push it in the rest of the way. Even if you are extremely hard on the bike opening the throttle all of the way it will never go all the way in unless you push it all of the way in. I own two GS's and niether of which prefer to idle if I push the choke all of the way in. Once I did this and learned just to leave the choke alone and let it stay where it self adjusted as I rode the bike it has never stalled since at a light. You should be able to pick up a can of seafoam at any local autozone or advanced autoparts. Most likely your idle circuit on the carb is currently gummed up and the choke circuit is all that is that is working. Myself and freinds have used Seafoam to solve this problem and just about anything with a motor that was parked with gas in for an extended amount of time without any stabilizer added. It's well worth the $8 versus pulling the carbs apart.

Mar 28, 2009 | 1980 Suzuki Gs 550 L

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