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1980 Suzuki Gs 550 L - Page 4 Questions & Answers
How do I unlock and tilt up the seat to get to the battery
Hi
There is a cable that comes down from the seat and is hidden behind the passenger handgrips. This cable is tied into the helmet lock on the bike.
You need to turn the key in the helmet lock in the opposite direction that you normally do for a helmet. This should release the lock on the seat.
Hope this helps. Please do rate my answer. Thanks.
Pilot jet plugged on 1980 gs550
there are two jets on the carb, a pilot jet and a main jet, if you can remove the bottom of the carb, be careful as there will be fuel in it ( turn off fuel tap first) then get a small flat head stubby driver ( or an ordinary one if the carb has been removed with a small flat head)
In the middle of the carb will be two ports which contain two screws( should be brass) idle jet and main jet. Undo and take these out one by one, dont get them mixed up. check them against a light source to see if they are blocked. If they are get an air line and a pair of pliers and hold the jet and blow the jet holeyou might be able to do it with your breath or use a valve of a tyre for some umph! then just do the reverse procedure.( dont forget to turn your tap on again) hope this helps
steve
Side stand light is on continuously
It's most likely the sending switch. I'm not familiar with that specific type, try seeing if it's a mechanical or electric switch. If it's mechanical you can try loosening it up with some WD40 it might just be junked up and sticking. If it's electric just find a replacement. The only other normal reason would be a short in the line/switch, but it's most likely the sensor itself.
Cylinder one and two have trouble firing, and
check the condition of the spark plug if it is black you must check the spark with a new plug, make sure there is no gas fumes present when doing the spark test. attach plug for cylider in quest to the wire use a jumper wire with aligator clips on each end to hook onto hooked tip of plug the hook the end of jumper to ground pull out the other plug wires so the bike won't start during check turn over the bike look for a blue or purple spark if you don't see this color (spark is white or yellow) the coil or wire from coil is bad, replace. If the spark is good the carb is flooding the cylinder and must be removed and cleaned.
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.
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.
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
I have a 1980 GS L 450 Suzuki that starts but
Hi and welcome to FixYa,
Almost always, your described problem would be the float needle not closing the inlet seat. This could be caused by a dirt, sand, contaminant, worn needle ends, grooves on the seat. Unfortunately, the only fix would be to pull down the carbs again and redo. Considerations are:
- ensure the pointed end of the float needle are not nicked, worn, necked, scratch;
- ensure that the inlet seat are perfectly round and smooth. You may need a very very fine abrasive material and a Q-tip or cotton buds and do a bit of lapping ( almost similar to valve grinding);
- ensure the float height is correctly adjusted;
- verify float is not punctured with fuel sloshing inside.
Good luck and thank you for using FixYa.
Alternator Wires
Hi and welcome to FixYa,
Being of the the same color indicates that they could be connected in any order to the rectifier/regulator. Additionally, being a 3 phase AC system, the diodes inside the rectifier/regulator would process the output of the alternator and 'sum' (no order required) them up to produce the DC voltage.
Good luck and thank you for using FixYa.
Hello
gas leaking out of the overflow tube is definately a float or float tang problem. if you are sure the tang on the float is adjusted probably, then the float may have a hole in it and it is no longer "floating" to shut off the supply of fuel. i'd remove it and submerge it in gas for a bit and look for air bubbles escaping and also see if it no longer floats after you release it from being submerged. if either happens, then replace the float.
running rich is an improperly adjusted air screw, wrong setting on the jet needle (long needle attached to the carb slide with a circlip), clogged airfilter or wrong jet (main or pilot) size. i'd try to find out the settings for these items and adjust accordingly.
hope you get it all sorted out and get this classic back on the road!
I have a 1980 Suzuki
clutch pushrod should just pull out as it should be a 2 piece clutch pushrod model, earlier models were 1 piece and you had to remove clutch cover and pressure plate to remove. hopefully the seal is ok.
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