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Fuel Fuel Delivery

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July 24th, 2017, 02:30 PM   #51
Joined: Jan 2017
From: Sweden - Sjömarken

Posts: 61
Thanks: 12

I Ride: Husaberg FE600 1994, Yamaha FZS1000, Beta Tr33
It starts, IT STARTS!!!

I currently have a 46 pilot jet but I can probably go back to original 52 since I'm 3,5 turns out on the 46.

So what happened? During my jet try outs I snapped the kick start return spring. Taffy supplied one in no time but when I had it apart I took a good look at the decomp action on the kick start shaft. In my mind, and since I had tried just about everything, I thought that it opened the valves to much and for a too long duration when set according to the owners manual (2 mm play). When slacked too much the cable could jump which is no good either.

So I took the shaft to the lathe and turned down the decomp cam about 1-1.5 mm in diameter. This way I can reduce the play on the decomp. I fitted a manual decomp in addition but on the 600 really need the kickstart decomp too in my mind, otherwise it just stops when it meets compression half way through the kick motion.

So - find TDC, manually release the compression, go just past TDC, release kick all the way up and kick through the whole motion. Started right up cold with choke. Ran it hot and restarted without choke.
Thanks from tourist
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