Anyone have or know of a link to this?
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TSB on pre ignition knock
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TSB on pre ignition knock
Greg
Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”
― Albert Einstein
80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.
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Hey Greg,
I remember finding it amongst the files on the Yamaha parts fiche site a few years ago. It referenced a problem with the vac. adv. unit on the later model bikes....IIRC the 81's, and that they actually had a different vac. adv. unit for the fix.
I also think I remember someone/Xsive posting a copy of it on our site, but I didn't make a note of it!
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!
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Greg
Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”
― Albert Einstein
80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.
The list changes.
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I would imagine the leaner burn needed a bit more advance....a bit sooner.
Coulda' just richened things up a bit, but guess that woulda' been counter productive for the emmissions gods. Bettin' largest percentage here don't have this issue due to second option, plus we get an little extra kick in the mid-range.81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.
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