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Saltcreek
Flying Brick Rider
Joined: 22 Oct 2008
Posts: 957
Location: New Hampshire
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 Posted: Fri Mar 20, 2009 3:17 pm Post subject: Fluids |
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I know it's here somewhere but I can't find it. I'll be changing all the fluids soon, first time on my watch, and have bought Mobil 1 for the crankcase. I'm inclined to go synth for everything. What do others think and would it be a good idea to have a sticky on fluid options?
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Jim
1994 K1100LT Mystic Red, bfd, 37000 miles, sold 
2009 Wilderness Systems Zephyr 155 ST
2002 Litespeed titanium |
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RAL88
Flying Brick Rider
Joined: 28 Apr 2004
Posts: 736
Location: New Mexico Land of Enchantment and 365 days of riding USA
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| Posted: Fri Mar 20, 2009 3:51 pm Post subject: |
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I use Mobile 1 15W50 extended performace in the crankcase, Mobile 1 75-140 in the transmission and Mobile 1 75-90 in the final drive. I also add molybdenum disulfide powder to the transmission and the final drive for added lubrication.
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Rich
"If it ain't broke, take it apart and make it work better"
*************
'96' K1100LT-SE
'97' R850GS-R |
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Saltcreek
Flying Brick Rider
Joined: 22 Oct 2008
Posts: 957
Location: New Hampshire
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| Posted: Fri Mar 20, 2009 5:20 pm Post subject: |
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Why the heavier oil in the gearbox? Everything I've read calls for 80-90. What do you use for fork oil?
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Jim
1994 K1100LT Mystic Red, bfd, 37000 miles, sold
2009 Wilderness Systems Zephyr 155 ST
2002 Litespeed titanium |
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Flying Duck
PsyKotic Waterfowl
Joined: 27 Jan 2005
Posts: 10102
Location: Bumf***, WA
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| Posted: Fri Mar 20, 2009 5:52 pm Post subject: |
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If your tranny is notchier than a normal K transmission than the 75-140 will smooth it out a bit.
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93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
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Saltcreek
Flying Brick Rider
Joined: 22 Oct 2008
Posts: 957
Location: New Hampshire
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| Posted: Fri Mar 20, 2009 6:24 pm Post subject: |
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I have nothing to compare it to but it seems pretty smooth to me. If I miss a shift now and then I usually attribute that to a lack of focus.
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Jim
1994 K1100LT Mystic Red, bfd, 37000 miles, sold
2009 Wilderness Systems Zephyr 155 ST
2002 Litespeed titanium |
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RAL88
Flying Brick Rider
Joined: 28 Apr 2004
Posts: 736
Location: New Mexico Land of Enchantment and 365 days of riding USA
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| Posted: Fri Mar 20, 2009 6:50 pm Post subject: |
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I use the heavier oil in the trans hoping it might stay on the surfaces better. I started out using the lighter oil in the fd and then changed to the heavier. I found that my fd was running hotter with the thicker oil so Iwent back to the lighter oil. Now that I am also using the moly I might go back to the lighter oil in the trans next change and see how that is.
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Rich
"If it ain't broke, take it apart and make it work better"
*************
'96' K1100LT-SE
'97' R850GS-R
Last edited by RAL88 on Fri Mar 20, 2009 6:51 pm; edited 1 time in total |
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endoman100
Rider in the Sky
Joined: 26 Jan 2009
Posts: 338
Location: Hastings Fl.
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| Posted: Fri Mar 20, 2009 6:50 pm Post subject: |
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| Saltcreek wrote: | | Why the heavier oil in the gearbox? Everything I've read calls for 80-90. What do you use for fork oil? |
I use 15 wt fork oil because I'm 270 lbs seams to give me a smoother ride.
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In the words of the stones
Time Is On My Side
Yes It Is
1993 K1100RS
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RAL88
Flying Brick Rider
Joined: 28 Apr 2004
Posts: 736
Location: New Mexico Land of Enchantment and 365 days of riding USA
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| Posted: Fri Mar 20, 2009 6:54 pm Post subject: |
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I am using Honda SS-8 10w fork oil and seems to work for me.
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Rich
"If it ain't broke, take it apart and make it work better"
*************
'96' K1100LT-SE
'97' R850GS-R |
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Phil Marvin
Rider in the Sky
Joined: 03 Apr 2003
Posts: 1389
Location: El Paso, Texas, USA
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| Posted: Fri Mar 20, 2009 9:45 pm Post subject: |
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Hi,
I use Mobil 1 15w50 in the crankcase and BMW oil filters. I use synthetic 75w90 in the transmission and Castrol Hypoy 85w90 in the final drive. With all the final drive problems which have been reported, I'm going to use what BMW recommends. Remember, DO NOT put 4 quarts of oil in the engine. It WILL be overfilled. Put 3 1/2 qt. (with a new filter, 3 qt. if you aren't changing the filter) into the engine and go for a ride of maybe 10 miles. When you return, check the level and top off until the level is about at the middle dot, maybe slightly higher. I also use Autolite 4163 spark plugs and ff424 (or now, ff3424) fuel filters from Auto Zone. I use BMW 7.5 wt. fork oil. I currently use these in my 2 K75's, but I also used them (before the deer meet) in my 2 K1100LT's.
Ride Safe,
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Ride Safe,
Phil Marvin in El Paso, TX
'94 K75A/3
'95 K75RTP |
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Flying Duck
PsyKotic Waterfowl
Joined: 27 Jan 2005
Posts: 10102
Location: Bumf***, WA
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| Posted: Fri Mar 20, 2009 11:18 pm Post subject: |
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Phil:
There seem to be plenty of FD problems with other bikes but I think the 4V K FD's are pretty bulletproof.
I only use synthetic blinker fuild. 
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE |
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Phil Marvin
Rider in the Sky
Joined: 03 Apr 2003
Posts: 1389
Location: El Paso, Texas, USA
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| Posted: Sat Mar 21, 2009 12:04 am Post subject: |
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Hi, Drake,
Squeezed dead dinosaur blinker fluid is difficult to find. Where do you find the synthetic stuff? It must be frightfully expensive. Is it in the same area as muffler bearings and relative bearing grease?
See you at Hungry Dungee I!!!!
Ride Safe(ly),
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Ride Safe,
Phil Marvin in El Paso, TX
'94 K75A/3
'95 K75RTP |
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Saltcreek
Flying Brick Rider
Joined: 22 Oct 2008
Posts: 957
Location: New Hampshire
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| Posted: Sat Mar 21, 2009 8:00 am Post subject: |
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| Quote: | | Squeezed dead dinosaur blinker fluid |
Huh?
I think from what I read in the Clymer the fork oil is the same stuff as the hydraulic oil I use in my tractor. Clymer also says 5w.
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Jim
1994 K1100LT Mystic Red, bfd, 37000 miles, sold
2009 Wilderness Systems Zephyr 155 ST
2002 Litespeed titanium |
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Scott_Anderson
Site Admin
Joined: 05 Sep 2006
Posts: 3122
Location: Central Iowa, USA
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| Posted: Sat Mar 21, 2009 10:31 am Post subject: |
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| Saltcreek wrote: | | I think from what I read in the Clymer the fork oil is the same stuff as the hydraulic oil I use in my tractor. Clymer also says 5w. |
That's part of "tuning" your suspension. With the front forks you can change the springs and fluid for your individual riding style and body wt.
Heavier oil wt can stiffen up the compression and rebound ability a little bit. Kind of like turning the screw from S to H on the stock rear shock.
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Ride safe.
1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold) |
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Jim
Site Admin
Joined: 17 May 2003
Posts: 3841
Location: WHERETHEFUNNEVERENDS
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| Posted: Sat Mar 21, 2009 11:59 am Post subject: |
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| Saltcreek wrote: | | I think from what I read in the Clymer the fork oil is the same stuff as the hydraulic oil I use in my tractor. Clymer also says 5w. |
Clymer = Book of Lies.
I think BMW fork oil is 7.5 - I could be wrong. I use 10W - I like a slightly stiffer suspension.
You're probably fine with 5W if you're very small. Hydraulic oil is likely OK, too.
_________________
Jim
1997 K1100LTSE 94,000 - still has gremlins!
1995 R100RT Classic 16,650 crashed - repaired!
1992 K75RTP 46,000
"We shall not all die, but we shall all be changed."
Last edited by Jim on Sat Mar 21, 2009 12:55 pm; edited 1 time in total |
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Off the grid
Chaotic Good
Joined: 05 Jul 2006
Posts: 3414
Location: At the local taco truck waiting for Jo.
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| Posted: Sat Mar 21, 2009 12:03 pm Post subject: |
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Always wear a condom.
Oh wait, you're talking about the LT.
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Bane of your existence since July 2006
2007 Triumph Tiger ABS. "Sabertooth"
2009 Husqvarna TE610. "The dirty Italian mistress"
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FinnRS
Joined: 01 Dec 2007
Posts: 5
Location: Finland
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| Posted: Sat Mar 21, 2009 1:16 pm Post subject: |
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I use Valvoline Racing 20/50 in crankcase and Mobil HD 80/90 in gearbox an final drive. I think works fine.
In front fork Motorex 10, also fine with WP springs.
By the way couple of weeks here in Finland to start the season.
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Land of thousands of lakes - Finland |
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Flying Duck
PsyKotic Waterfowl
Joined: 27 Jan 2005
Posts: 10102
Location: Bumf***, WA
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| Posted: Sat Mar 21, 2009 1:19 pm Post subject: |
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Upon the recommendation of a fellow longtime K bike owner I use the Honda Red 10W oil. If filled to spec it jackhammers me on freeway cracks but found that loading each fork with about 10cc less than spec makes the suspension work great for me.
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE |
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Tim (Midland Section)
Flying Brick Rider
Joined: 08 Apr 2005
Posts: 960
Location: Pinxton, Nottingham, England.
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| Posted: Sat Mar 21, 2009 7:55 pm Post subject: |
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[quote="Jim"] | Saltcreek wrote: | | I think from what I read in the Clymer the fork oil is the same stuff as the hydraulic oil I use in my tractor. Clymer also says 5w. |
Clymer = Book of Lies.
I think BMW fork oil is 7.5 - I could be wrong. I use 10W - I like a slightly stiffer suspension.
You're probably fine with 5W if you're very small. Hydraulic oil is likely OK, too.[/quote
Yep 7.5 is the KLT recommended fork oil, never felt the need to change. We total 30 stones (420 Lbs) +
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Regards Tim,
Grey haired riders don't get that way by pure luck
1996 Guzzi Cali3 LAPD
1972 750 Commando
G6HRN
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Off the grid
Chaotic Good
Joined: 05 Jul 2006
Posts: 3414
Location: At the local taco truck waiting for Jo.
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| Posted: Sun Mar 22, 2009 1:01 am Post subject: |
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I always used 12-15w fork oil with Race Tech .95 springs.
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Bane of your existence since July 2006
2007 Triumph Tiger ABS. "Sabertooth"
2009 Husqvarna TE610. "The dirty Italian mistress"
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