Author Topic: XS500 various questions  (Read 1173 times)

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Offline Frijec

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XS500 various questions
« on: June 12, 2017, 10:56:43 AM »
I have a few questions for you guys:

- what spark plugs do you run?
- what caps do you use? 5ohm, 1ohm or no resistance?
- What are you jets on your setup?
- when you loosen the pilot mix outwards, does it give more air or more gasoline? (BS38 carbs)

I hope you can shed some light on my issues...

Offline guylr

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Re: XS500 various questions
« Reply #1 on: June 12, 2017, 11:21:02 PM »
1. It calls for D8ES but I think I'm using D8EA because you can't get D8ES anymore and it works the same.
2. Stock 11K ohm (11,000 ohms) plug caps.
3. I can't find where I wrote it down but I believe I'm running a 125 main and a 32.5 pilot on my E model which are one step over stock because, you know, "Ethanol".
4. Turning the pilot mixture screws out on 500s adds fuel for a richer mixture. Here's a tip on how to tell what a mixture screw does on Mikuni carbs. If the screw is on the airbox side of the slide it's a air screw. If it's on the engine side of the slide it adjusts fuel.

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

Offline dankeller

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Re: XS500 various questions
« Reply #2 on: June 13, 2017, 02:58:28 AM »
I have an xs500e (1978), with a stock setup, including airbox.

1. Spark Plugs: The manual calls for D8EA. But I can only get DR8EA.
2. Caps: I use the stock caps. I don't know their resistance.
3. Jets: I use stock jets. Main = 132.5 pilot = 42.5 (these are BS34 carbs).
4. Mixture screw: when you turn counter clockwise, loosening out, the mixture gets richer (more fuel); if you turn clockwise, tightening screw in, the mixture gets leaner (less fuel).