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The only thing I didn’t change is that dime size plug. Just cut corners for time. This carb has no high speed jet. I rebuilt it as I would and have any carb. But I’m thinking they had to change something else when they eliminated that jet. Maybe that’s my problem but I will pull that aluminum plug first.
This is a JW 22. Do you think a carb from an earlier model, say JW 17 might work?
While at this, here is another problem. I set the JW 22 aside and cleaned up a JW 16. Lower end seals, etc. Mag was good but I rebuilt it’s carb using the same foreign carb kit that I used on the JW22. Hooked everything up, opened the fuel valve…and…fuel poured straight through the carb and onto the floor. What the…..???
OK, I’m confused. Let’s not get too deep into this and create more confusion. How does the engine run once started? If it runs and idles nicely, a plugged up carb seems very unlikely. How does it start after shutting it down for a few minutes?
Did you check the choke linkage? How far are you advancing the throttle when trying to start it cold? If you are starting it in the “start” position, perhaps the cam pick up is not set properly and the throttle is closed…But, I think these carbs open the carb a bit when the choke is on, so maybe cam pick up is not an issue here.