Author Topic: '86 K75S mission to accomplish better fuel consumption  (Read 7076 times)

Offline daveson

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Re: '86 K75S mission to accomplish better fuel consumption
« Reply #125 on: May 16, 2019, 07:27:55 AM »
I would think so too.

Installing a new one would show if there is a difference, but unlikely, I think.

Idle speed adjustment screw o rings? Suggestions not tried yet?
  • Victoria, Australia
  • Current;'86 K100RT Past; '97 Yamaha V Star 650 Yamaha V Star

Offline szabgab

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Re: '86 K75S mission to accomplish better fuel consumption
« Reply #126 on: May 16, 2019, 04:07:38 PM »
I would think so too.

Installing a new one would show if there is a difference, but unlikely, I think.

Idle speed adjustment screw o rings? Suggestions not tried yet?

The o-rings are fine Dave, as are the other rubber bits, I have liberally sprayed the whole area multiple times with starting fluid to check for leaks with no change in idle speed. I have even taken the MAF off again, sprayed the temp sensor with contact spray, taken the top off and sprayed the carbon track with contact spray - no change. Everything works as it should but something is amiss...
  • Budapest, Hungary
  • K75S 1985 model

Offline The Mighty Gryphon

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Re: '86 K75S mission to accomplish better fuel consumption
« Reply #127 on: May 16, 2019, 04:24:31 PM »
How far from bottom are the idle air screws?
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '91K100RS White/Blue, '89 K100RS Special edition White/Blue
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'91 K100RS "Moby Brick Too
'89 K100RS SE

Offline Laitch

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Re: '86 K75S mission to accomplish better fuel consumption
« Reply #128 on: May 16, 2019, 05:14:43 PM »
How many additional kilometers or miles have been logged on this moto since all the hand-wringing began back in February?
  • Along the Ridley in Vermont.
  • 1995 K75 72,000 miles
I wept because I had no radials until I met a man who had no splines.
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Offline szabgab

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Re: '86 K75S mission to accomplish better fuel consumption
« Reply #129 on: May 16, 2019, 05:19:36 PM »
How far from bottom are the idle air screws?

Number two and three are ~1.5 turns out, number one (closest to the front) some 3/4 turns. It is exactly as it was before, as weather has been really awful recently and I can not ride the bike to warm it up for a re-sync at a lower setting. Since I have been into the MAF (and removed, later replaced the fuel filter) my engine feels to be out of tune. Since both things would affect the overall mixture I just hope, I did not introduce some dirt into one of the injectors, when I ran the engine without the fuel filter for a very brief period of some seconds (basically checking, if cold engine idle improves without the filter).
  • Budapest, Hungary
  • K75S 1985 model

Offline szabgab

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Re: '86 K75S mission to accomplish better fuel consumption
« Reply #130 on: May 16, 2019, 05:22:25 PM »
How many additional kilometers or miles have been logged on this moto since all the hand-wringing began back in February?

According to fuelly and the recent fuel up, that has not been logged as of yet it has been 1173 kilometres. The total covered since owning the bike (from August onwards) has been 4146 kilometres, which surprises me a lot.
  • Budapest, Hungary
  • K75S 1985 model

Offline Martin

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Re: '86 K75S mission to accomplish better fuel consumption
« Reply #131 on: May 16, 2019, 10:26:13 PM »
Might be a candidate for an Italian tune up.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

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