1990 Suzuki GSX 600 F (Katana) - Answered Questions & Fixed issues

Replace with good used, straighten to the original shape or order new from eBay, or thefind.com

somethin in the electics is off--that ECM may need to be programmed rite--its common when cars get theirs changed--but first chec any wiring flaws or the plug cables--coil etc--------a specialist can download data into the new computer--find a good shop

The fuses are located behind the right frame seat cover or under the seat.The fuses are protected by aplastic cover, which clips on or is secured bya screw.

Inspect the frame slider on the right hand side. ------------- Check around the headlight that the plastic is not rubbing against the headlight. If its rubbing then put little pieces of weatherstriping between the fairing and the headlight, just enough to see if it would work before pulling out the headlight. If it still makes the noise. Then you just have to pull the headlight out and put some good weatherstriping around it. ----------- Also inspect the the right lever, there is a small screw where the adjuster is.Inspect the lever and screw.If its got loose and making this noise.-------- Inspect if its coming from the fairing just above the headlight. Tightly hold or press down & pushed forward on the windscreen and see if it goes away. Based on the Service Manual this part of the fairing are only held by velcro on one end and double sided tape on the other end.
Solution: Put some thin high density foam (weather stripping) in that area to absorb the vibration. The noise should go away. ----------- This will help.Thanks.Helpmech.

http://katriders.com/wiki/index.php5?title=Service_Manual

The parts have been installed wrongly. Usually, the clutch plate suppose to fit firmly else combustion would not be achieved. Loosen entirely to asscertain the condition, install properly and tigghten in place. Refer with an auto bike technician when required.

I noticed you said you pulled the split pin out...not sure if you meant PINS or not, because there should be two pins holding the pads in place. Here's a picture of the schematic. Number 5 is your pads. There are two cotter pins (number 9) that come out. But I usually use a pliers with a curved nose to pull out the two spring pins that hold those in place (number 8). This should help you on your way. Good Luck and have a great day.

Bruno

Your carburetors sound like they are in need of cleaning.

Hi and welcome to the site,

Have you checked the yellow/white wire for +12. This wire supplies the dimmer switch.

Good luck and thank you for asking.

Try turning the idle screw assembly down it turns all 4 carbs at once.thumb screw attached to rubber hose just below fuel tank in the side of the cowl,also make sure you have free play in the cables at the throttle assembly

turn the coil lock nut counter clockwise to loosten

Probably easier to ask you local motorcycle shop.

Choke cable - The cable nipple attaches to a bracket on the choke shaft, pull on metal end of the cable (where it goes onto the carbs) until the bracket has moved enough to disengage the nipple (hold bracket, release cable & disengage)
Throttle cables - Loosen the cable adjuster at the twist-grip all the way. Next loosen the 4 clamp screws holding the carbs on, disconnect the vacuum hoses, then remove carbs lift them up & disconnect the cable nipples from their holders
Et Voila !

Ride safe
Bike-Doc
Please mark this as very helpful (if it has been!!)

Take a spark plug out and turn motor over with starter see for spark if any it's ok if not it is properly fuel pump turn key on and listen for fuel pump it is built into the tank and you will hear it. If you don't theres your problem.

5/8th deep well sparkplug wrench( socket )

is it in the crank case? then you probly want to remove the part of the case thats cracked and find a skilled aluminum welder to patch up the crack or else you can buy a new part of that case at www.cheapcycleparts.comsuzuki/katana or www.bikebandit.com/suzuki
just make sure you know what you are doing when taking it apart and be sure the gaskets are good and be careful not to rip them

hi buddy can you check if there is a spark and get back to me

Yep you got it a stuck float or possibly a plugged main jet, but more likely the float....and probably its not stuck, its probably bad and needs replaced, if there is fuel in the float itself replace it. Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

the neutral switch is inside the gear box, but the side stand can be seen from under the bike, the best way to check if its the problem is to pull both wires off and sort them out with a split pin or jump lead of some sort its more likley to be the side stand causing this problem as its a safty idear,,,
now who drives off with the side stand down,,,,,,me?

The MFG.'s name is stamped on the upper body of the carb.Usuallyl most are Kehin