Author Topic: Finally started! Few queries  (Read 225 times)

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Offline Joffa1

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Re: Finally started! Few queries
« Reply #15 on: January 13, 2020, 08:04:20 PM »
I had the limiters off when I removed the screws and blasted with carb cleaner then I gently seated the screws and adjusted them out then I put the limiters back on.

Isnít it possible previous owners have done the same when they cleaned that circuit out and put the limiters back on?

Not doubting your diagnosis Iím just very surprised that the carbs would still be varnished. They were clean as a whistle when I went through them.

Offline guylr

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Re: Finally started! Few queries
« Reply #16 on: January 13, 2020, 08:32:47 PM »
I'm going on the symptoms you listed. I've heard them many times before  ;) I was on the Yamaha tech line during the worst of the "Green Slime" days of 1983-85 when thousands of overstocked units that had been warehoused with fuel in the carbs for extended periods hit the dealerships at blowout prices. It was pretty awful and taught the factory not to crate the bikes with any fuel in them. At first we sent out bulletins instructing dealers to just inject some carb cleaner into the carbs and then drain it out after a few hours. Didnít work.

Guy
Now Retired Yamaha guy. Cut me and I bleed "Cinquasia Red"

Offline Joffa1

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Re: Finally started! Few queries
« Reply #17 on: January 14, 2020, 09:17:56 PM »
Interesting. No worries wonít hurt to take em apart and clean again. Thanks.

Offline Joffa1

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Re: Finally started! Few queries
« Reply #18 on: January 15, 2020, 11:53:06 PM »
Just quickly Guy as I thought youíd be the best person to ask...

Are there any differences in engines between the Ď76 XS500C and the Ď78 XS500D/E?

Iím thinking about picking up a second engine for my Ď76 and I thought I read somewhere that the later model engine I.e. 78 and on had some design improvements?

Be keen to hear your input. Thanks again.

Offline guylr

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Re: Finally started! Few queries
« Reply #19 on: January 16, 2020, 01:12:36 PM »
Higher compression, round exhaust ports, BS34 MkII carburetors with larger volume airbox, "improved" point cam governor, externally adjustable balancer chain and improved camchain adjuster.

Guy
Now Retired Yamaha guy. Cut me and I bleed "Cinquasia Red"

Offline Joffa1

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Re: Finally started! Few queries
« Reply #20 on: January 16, 2020, 09:54:45 PM »
Excellent! Thanks.