FH601V-BS06 Carburetor

[StarTech]

Float needle seat may need polishing or recut. Takes a six counter sink of the angle to cut the seat and of course the float hinge would need bending to compensate for the increase needle seat depth. Polishing is something a DIYer can do but not the seat cutting. And of course a new carburetor body is one of last resort. Too Kawasaki does not provide replacement needle seats.

All it take is a hairline scratch to cause a leak.

 

[tmaslar]

So...do you believe that the bowl continuing to fill and overflow after shutdown is due to the float valve still not sealing after the float is up all the way and the float valve not sealing on the seat? If so. I will take it apart and check it with a magnifier and see if there is any dirt or scratches on the seat.

 

[txmowman]

So...do you believe that the bowl continuing to fill and overflow after shutdown is due to the float valve still not sealing after the float is up all the way and the float valve not sealing on the seat? If so. I will take it apart and check it with a magnifier and see if there is any dirt or scratches on the seat.

Without a doubt. Either a holed or cracked float, taking on fuel, or the float sticking.

 

[tmaslar]

Thank you! I will take it apart and check as soon as I get new gaskets for reassembly.

 

[sgkent]

have you tried getting rebuild parts?

 

[bertsmobile1]

Thank you! I will take it apart and check as soon as I get new gaskets for reassembly.

I use a pencil brush on a Dremel tool to clean the bottom of the seat
If that does not work then I get a drill marginally bigger than the hole in the seat and with the seat mounted in the drill press recut the hole
This has to be done in a drill press because the hole has to be dead square or the needle can not make a seal
Having done this the float will need to be adjusted
If this is sounding too difficult then any one of a number of specialist carb repair workshops can do it for you , should cost about 1 hour of their labour rate
The float needs to hold 7 to 10 psi fuel pressure

 

[tmaslar]

have you tried getting rebuild parts?

Yes,
Some are still available. The rebuild kit is not.

 

[tmaslar]

I use a pencil brush on a Dremel tool to clean the bottom of the seat
If that does not work then I get a drill marginally bigger than the hole in the seat and with the seat mounted in the drill press recut the hole
This has to be done in a drill press because the hole has to be dead square or the needle can not make a seal
Having done this the float will need to be adjusted
If this is sounding too difficult then any one of a number of specialist carb repair workshops can do it for you , should cost about 1 hour of their labour rate
The float needs to hold 7 to 10 psi fuel pressure

Thank you! I'll post when I get it apart and inspect the float, valve and seat.