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Toro z master 74179 Serial 230005065
Kawasaki FH601V-AS23 4 Stroke Engine FH601V.
Nikki carburetor
26D 150037075 266-541
Replaced coils ,spark plugs, removed carburetor cleaned jets, checked choke functions, checked anti back fire valve.

There is fuel going upto the carburetor but not into the engine. This mower is kicking my behind. All help will be appreciated. I see a lot of write ups on Nikki carburetor for Briggs and Stratton engines not for kawasaki.

Maybe this service manual will be of some help to you. https://www.mymowerparts.com/pdf/Ka...AWASAKI-SERVICE-REPAIR-MANUAL-99924206002.pdf

Will it fire if you spray carb spray into the air intake? With the filter removed....

Scrubcadet10 said:

Will it fire if you spray carb spray into the air intake? With the filter removed....

Click to expand...

Yes it attempts to but backfires

I took the carburetor apart again today. I was trying to blow air in through the inlet keeping the float bowl facing down. The air was going through the passage into the float chamber. When I removed the float and needle valve air passes through. I ordered
16031-7001 Float $24.2

16030-7002 VALVE FLOAT $15.18

Float assembly

Hope you ordered a new needle also.

Attachment parts diagram exploded view.

Rivets said:

Hope you ordered a new needle also.

Click to expand...

Are you asking about the float needle valve yes.

I can't figure this out installed new float with needle valve. I tested it by blowing air through it air passes through. After installation it seems like fuel not going into cylinders. Spark plugs are dry.

Have you checked the operation of the intake valves? Check valve lash, push rods, rocker arms, or any valve related parts. Also, depending on runtime hours, may need go set valve lash.