Question about 1981 Suzuki Gs 550 L

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I have recently cleaned out the carbs on my 81 gs550, previously it started and ran but only on 3 cylinders which is why I did the carb work. After I put everything back together, the ignition button does nothing. No clicks or anything. All the lights work, and when I arc the terminals on the solenoid the engine turns over. But for some reason the starter button on the handlebar doesn't work. I check all the fuses, and they look good. Checked the clutch sensor and it looks good too. Also took apart the switch itself on the handle bar and cleaned it out really good, although it didn't look in very bad shape either. Not sure where else to look, and what could be causing it. Any ideas would help out a lot!

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Cleaning the carbs should have nothing to do with the switch not working, but look for the 3 yellow cables that are coming out of the starter that should be above the airbox maybe? not sure I had mine all over the place but if they aren't connected it will not start and I know sometimes things get knocked out from removing the carbs.

Posted on May 19, 2011

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Posted on Jan 02, 2017

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1 Answer

Hi I just got a 81 Suzuki gs550 and I cleaned the


Old bike, old bike problems
You NEED the air filter
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I recently changed the oil on my 2005 Honda Shadow 750 Aero, the next day riding home from work my bike died as if it was not getting gas. It immediately fired back up and I began to ride home, it happened...


If you have a fuel pump, that could be the problem. If the pump is not working, only 1 cylinder will get some fuel. Maybe water came into electrical part of the pump and shot the fuse, just check the pump operation.

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1981 Suzuki GS 650 GL gas leaking out of tailpipe


Hi, Sammy80918 you need "FIVE" things in order for a cylinder to run properly:
1. FUEL: in order to validate your not getting fuel spray some starting fluid into the air cleaner and hit the starter button, if it fires up and runs for a few seconds then you know you have a fuel delivery issue. Multi carb banks should be bench "SYNC"
2. SPARK: remove the spark plug and with it connected to the spark plug cable ground the threads to something metal you should see a bluish white spark if not you have a faulty spark plug, spark plug cable, ignition coil, condenser, CKP, ECM, sensor or the wiring in between.
3. COMPRESSION: you must have at least 80-100 PSI for most bikes, multi-cylinder engines should be within 10-15% of each other if not perform a leak down test you may have a burnt or bent valve or hole in the piston or broken rings.
4. CAM TIMING: confirm your timing marks are aligned to see if the cam chain or adjuster are worn out and the chain has skipped a couple teeth.
5. IGNITION TIMING: on older bikes check to see if your points have not closed up, timing plate has not become loose and confirm with a timing light for proper retard and advance functions, on newer bikes where timing is controlled by an ECM and is nonadjustable check you CKP, TPS, MAP, O2, sensor or its counterpart for integrity.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
81 GS550 exhaust fuel leak Motorcycle Forum
Carbs leaking Here is how to fix it
http://gsarchive.bwringer.com/mtsac/~cliff/storage/gs/GS650GManual.pdf service manual
OEM parts for Suzuki
http://gsarchive.bwringer.com/mtsac/~cliff/storage/gs/1982_Suzuki_GS650G_Owners_Manual.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


Oct 15, 2017 | 1981 Suzuki GS 650 GT

1 Answer

1985 yamaha maxim 700 wont start no fuel. however i have fuel in the lines all the way down to the tee where it seperates in to the carbs. tank appears to have some rust in it and i did replace the inline...


I had the same issue with mine, just recently purchased the bike, previous owner said it ran but has been in storage a year and a half. I filled the fuel filter and everything and it would **** down the fuel but never even attempted to fire. I came to find out that there are two lines that come off the tank, the one without the fuel filter has a vacuum on it. So what we did was pour a little fuel down that line to prime the engine because it dumps fuel straight between the carb and cylinder. Took about 3-4 attempts but it fired and ran, just had to set the idle from there. Hope that helps you.

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2 Answers

I have an 81 yamaha 650 maxim that will only idle with the choke on


WELL ITS SOUND LIKE YOU HAVE CLOGED JET IN CARB OR CACUME LEAK AT THE CARB BOOT NEED TO CLEAN CARB IF BOOTS OK

Mar 16, 2010 | 1981 Yamaha XJ 650

2 Answers

Starts ok but only running on two cilinders


What have you done if anything to check out this problem?
Several causes could be: 1. Not getting fuel do to clogged jet in the carbs for those cylinders. 2. Fould plugs in those cylinders. 3. Not getting spark to those cylinders/bad coil 4. no compression in cylinders that don't fire.
So run the bike and determine which cylinders are not firing for sure. use a squirtgun and hit the header with some water. running cylinders with smoke the water. non running will not. Then remove and replace the plugs.(look at old ones, all oily=bad) See if they are wet and shiny but not black...Not shiny=no fuel. Tear carbs apart and clean. Check to see if you have spark leave spark plugs unintsalled from motor but installed in spark plug boot. see if they spark when you start it. Do a compression check. wet and dry. could be rings or valves.
If the bike was sitting for a while then probably clogged jets...This is where stabil comes in handy or else drain the bike at the end of the season.

Nov 28, 2009 | 1983 Suzuki Gs 550 L

1 Answer

2003 ZR7S #4 cylinder running cool


Possibly yes; also may be a coil issue too. I had seen this same issue some time back with an older KZ650, in the end it was a coil. By stroke of luck working with the carbs put the wires back as required.
I hope this may have helped,
Tom

Oct 16, 2009 | 2003 kawasaki ZR-7 S

1 Answer

My royal star 1996 is burning oil on # 3 cyclinder


What is the compression on the cylinder compared to the other cylinders? It should be within 10%. Some causes can be - as you suggested - the valve stem seals. Also, the sleeve could be rusted, as the valves could have been open on that cylinder. Generally speaking, on a 4-cylinder motor 1 cylinder has both its valves closed, 1 has both open, 1 has an inlet valve open and one has an exhaust valve open at any given time. Another possibility is that the valve could be sticky - try Wynn's Valve Ease or a similar product.

Jun 17, 2009 | 1996 Yamaha Royal Star XVZ 1300 A

1 Answer

My 2003 1100 v star sat for 3 months without starting. I started it and only ran on one cylinder. I removed carbs and cleaned. Now it idles fine but doesn`t want to accellerate. We cleand all jets and...


sync 'ing the carbs you need either a manometer or two vacuum GAUGES. pREFERABLY A MANONMETER..iT'S A MATTER OF BALANCING THE CARBS TO HAVE THE SAME VACUUM AT THE SAME POINT OF THROTTLE OPENING.. WHAT IS YOUR LOCATION?

Jun 12, 2009 | 2003 Yamaha V Star 1100 Classic

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