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What the heck are these plugs for? See them on ebay frequently and I'm tired of guessing what they are!
YAMAHA XS650, XS1100 CARB PLUGS Item number: 4586131702
YAMAHA XS650, XS1100 CARB PLUGS Item number: 4586131702
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80 SG
81 SH in parts
99 ST1100
91 ST1100 -
Hey Dean,
What's funny is that George's description states they are for the 80-81 series, but the 80-81 carbs DON'T use the Pilot Jet plugs. Only the 78-79 use them, even though Yamaha's own parts online catalog shows the use of a "Screw" that goes over the pilot jet. The earlier carbs are supposed to get their pilot circuit flow thru a shared passage with the Main jet, and NOT directly thru the float bowl, so they are capped off. But in the later carbs, that passage was closed, and the pilot jets get their supply from the bowl, so they are NOT to be capped off!!
T.C.T. C. Gresham
81SH "Godzilla" . . .1179cc super-rat.
79SF "The Teacher" . . .basket case!
History shows again and again,
How nature points out the folly of men! -
Thanks TC, hope you had a good time at the Academy get together. I have yet to get to one!80 SG
81 SH in parts
99 ST1100
91 ST1100Comment
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My 78's both has screw caps rather than rubber caps. The Yama Plant must have decided that push-in plugs were easier in later 79 models...
Originally posted by TopCatGr58
Only the 78-79 use them, even though Yamaha's own parts online catalog shows the use of a "Screw" that goes over the pilot jet.Skids (Sid Hansen)
Down to one 1978 E. Stock air box with K&N filter, 81H pipes and carbs, 8500 feet elevation.Comment
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