My 2005 Katana is stalling left and right

Help with spark Plug placement/firing order - KatRiders.com

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Dec. 7, 2005 - Hello my son has bought a 94 Katana GSX600F he removed all the spark plug wires and dont know how to put the new ones on also he only ... 11 posts · Left coil is for 1 and 4 , right is for 2 & 3 . Are the leads still hooked up to the coiils ...
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Diagrams

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Using the choke as you did,mentioned in your problem,you have flooded the carburetor. DO NOT USE THE CHOKE,ONCE THE TRACTOR IS RUNNING. Choke is used to start the motor only. When you run with the choke on,the motor gets to much gas and the plug(s) get fowled up and gas comes out of the carburetor. Remember the motor is hot,when gas comes out of the carburetor,the amount of over flow (flooding),could cause a FIRE. Lay off the choke,clean the spark plug(s),they will most likely be fowled up. The filter will be soaked with gas,remove the filter,soak up the gas,using a handy wipe,let filter dry out. Once dry replace filter. You should be good to go. Remember,do not over choke,use when starting a cold motor,usually when motor is hot from running,you may not have to use the choke at all. Hope this helps. Sincerely,Brad Locke

Your carburetor needs cleaned. It is dirty/has debris in it. If it has a bowl that is. If it has a diaphram (carburetor mounted on the fuel tank), replace the diaphram. They go bad.

I hope this helps get you going.

there is a reason the oil light is red, it means stop now!!! my guess is the engine is very badly damaged, only a teardown will tell you how bad

Well one area I recommend you to check is the power jets in the carb. Overall check your jettings because you are starving on high end. To test try closing your choke half way and see if that gives you more pull ower over 6K rev. Good enough?

this sounds more like a fule problem to me, try striping the carbs out and clean all the jets out, also check the fule it reaching the carbs and its not a blocked fule tank or filter as this bike is just not getting any fule to the engine after cleaning the carbs it should run ok, but just to be on the safe side get some cleaner and tip it into the fule tank also

your carbi will need a clean first and tune as well . air filters will need cleaning to allow full air intake .
Make sure to have clean spark plugs too

The pilot jets in the carbs are clogged. This is usually a result of the bike sitting for 30 days or more with gas in the carbs. It evaporates and leaves a substance behind that clogs the pilot jets. The carbs will need to be cleaned to resolve the problem of running on choke and stalling off choke. The pilot jets meter fuel at zero to 1/4 throttle opening.

sounds like you have to remove the carbs and give them a good cleaning.