20 Most Recent 1998 Suzuki GSX 750 F (Katana) Questions & Answers

COULD BE A SMALL KNOB IN MIDDLE OF CARBS, A BIT CLOSE AND TIGHT.

check your oil level gas may have bypass your rings an over fill your crank case

It's likely a fuse. Either under the dash or under the hood.

go to www.katriders.com it is an excellent forum for katana riders they have interchange guides there that will help you.

using a car battery, especially while the car is running is way too many cranking amps for a 12 volt bike starter. remove the bike starter to have it rebuilt or replaced. Internally the main power wire inside the starter will be burned/broken. check fuses as well

THIS IS QUITE EASILY RECTIFIED, REMOVE THE FUEL LINE FROM THE TAP,SLOWLY TURN THE TAP FROM 1 DIRECTION TO THE OTHER, WHEN FUEL FLOWS READILY FROM THE OUTLET ON THE TAP, NOTE THE POSITION ON THE TAP AS FUEL WILL ONLY FLOW WHEN IN PRIME POSITION. {VACUME TYPE TAP REQUIRES ENGINE TO RUN FOR FUEL TAP TO OPEN, WHEN NOT RUNNING FUEL SHOULD ONLY EXIT THE TAP IN PRIME POSITION). REASON FOR FUEL FLOW WHILE NOT RUNING WITH TAP IN ANY POSITION, COULD BE DIAPRAM FAILURE IN TAP.

Good chance the spark plug wires are getting wet.

There is a manual for a 2000 model available freebie, this should give you a good guide.:
http://www.carlsalter.com/motorcycle-manuals.asp

need a new starter, or more information, like how long has it been sitting???

Good possibility, You can check the out put voltage of the pickup coil. This has to be done with a "peak reading volt meter". There are some commercially available adaptors to insert in a standard volt meter for this check. With adapter installed, meter set to DC volts the reading across the leads from the pick up coil should be 3-7 volts at cranking speed. You should also confirm that you have battery voltage with the key & engine stop switch on at the cdi box as well as a good ground. I believe on a Suzuki this will be the orange/ white for battery voltage and the black will need to have contininity to ground. Also the orange/white at each coil should have battery voltage with key and engine stop switch on.

Change your coil

Does this motorcycle have a radiator if so, make sure it's full if it is go online and see if there's a sensor that shuts the bike down when it gets too hot. Maybe there's something wrong with that

compresion tsest could be a slightly bent valve, or valve too tight, inlet side.

bad fuel ? clean out carby and filter then if no spark at the plugs start at coil

https://www.youtube.com/watch?v=rRQ45lT2d3c I would check the coils, leads and plug cap. Check the video to see how.