My XJ 600 refuses to start. I checked the battery and the spark plugs. I believe there's water in the carburetors. It has been staying unused for too long in winter. Besides, it stands outside under a cover that tends to retain moisture, if that matters.
I found the carburetors purge screws:
When purging I obtained a layer of close to transparent liquid (water ?) with a yellow layer on top of it (gas ?). I suppose my assumption (water in the carburetors) is correct. The picture is not that good.
I tried to start the engine again. No success. Purged again. Same output.
I then checked the gas tank output by unplugging the pipe after the gas valve. When on
PRI position, the gas flows and it looks fine, homogeneously yellowish.
On the left, the sum of all carburetor purges (not as transparent as said above because the can was dirty already), on the right, gas from the tank:
Tank looks OK (there might be water in the reserve, though, I can't tell from that test)
Water in the carburetors but I won't get it out in one go. Looks like I need several start/purge cycles. There must be water not only in the carbs themselves but also in the pipes above, in the gas pump, etc.
Are those conclusions correct?
How should I proceed? Should I keep on starting/purging and it will be fine after a few cycles? Or is there another method to flush the water with gas without actually trying to start the engine? I left the valve on position
PRI but even after two hours or so, nothing would come out of the carb purges.
(I lack both skills, tools and time to take the carbs off and clean them, so either I can get away with this by purging in place, either I push the bike to the repair shop.)