Zama W-26 Carb. Cleaning

It has been my experience that the spray carb and choke cleaners cause the rubber check valves to swell stopping fuel flow to the main jet and cause a no start issue. Or sticks open and will prevent priming because the primer will suck air.
 
It is contained inside of the brass insert in the center of this picture. Stick closed won't start, stick open won't prime. That is the outlet check valve, main fuel nozzle. Some have an inlet check valve that can cause other start/run issues.

1687539860339.png
 
StarTech said:
Only if you don't believe IL about the rubber check valve damage.

Here it is only soap and water in an USC. For preclean I use 2 cycle fuel mix as that is what the carburetor is designed to run on. And no hi air pressure used either as it damage the same check valves.
Click to expand...
Of course. My bad, forgot this was a 2 smoke carb. Deleted my poor info.
 
Yep soap & water for me as well.
One of my wholesalers used to be the Walbro distribuor & Oregon distributor
Unfortunately as B & S get out of making their own stuff and transittion into distributing other peoples products both of these have been taken over by B & S ,
And B & S Australia are not going to bring the new check valve safe carb cleaner that Walbro has formulated into Australia as they concentrate on selling through supermarket & mower franchised chains .
 
bertsmobile1 said:
Yep soap & water for me as well.
One of my wholesalers used to be the Walbro distribuor & Oregon distributor
Unfortunately as B & S get out of making their own stuff and transittion into distributing other peoples products both of these have been taken over by B & S ,
And B & S Australia are not going to bring the new check valve safe carb cleaner that Walbro has formulated into Australia as they concentrate on selling through supermarket & mower franchised chains .
Click to expand...
I have a case of the Walbro carb cleaner thinking it would be safe for the check valves. Nope. Still damaged the valves and renders the carb useless.
 
You must log in or register to reply here.
Back
Top