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Thread: 92 k75 about to go (maybe) buy one. What should I look for.

  1. #31
    Rally Rat
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    Quote Originally Posted by cele0001 View Post
    . I will leave the valve adjustment for the next oil change. It was running fine.
    Only a few ounces of oil will escape during a valve check. No need to empty the oil.

    A K75 will "run fine" even with out of spec valve clearances, but you will experience less than optimum performance, poor fuel economy and increased parts wear.

  2. #32
    Instigator cele0001's Avatar
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    Quote Originally Posted by timtyler View Post
    Only a few ounces of oil will escape during a valve check. No need to empty the oil.

    A K75 will "run fine" even with out of spec valve clearances, but you will experience less than optimum performance, poor fuel economy and increased parts wear.
    I don't mind doing the check, but since I don't have the shims or the tools needed to complete the job if I have to change the shims it seems like inviting one of those "bike down" for a month scenarios. I will see if somebody in the area has tools and shims and do it then.

    EDIT: I could probably improvise the tools
    I want to be unique, just like everybody else.

  3. #33
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    You really need to do the check to get a baseline and know if everything is OK. If a valve or two needs adjusting, you can put the cover back on and ride it (if it's not crazy bad) until the tools show up and you can schedule the adjustment to your convenience. It's much better KNOWING where things stand, than just hopeing that everything is OK. You want to make informed decisions.

    If you wait until it starts running poorly, you've already started doing some damage.



    LONG MAY YOUR BRICK FLY!

    Ride Safe, Ride Far, Ride Often

    Lee Fulton Forum Moderator
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  4. #34
    Instigator cele0001's Avatar
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    Intake 0.006. 0.007. 0.007
    Ex. .012. 0.009. 0.009
    One bucket 3. Has 245 on it, I can't see anything on the other one
    I want to be unique, just like everybody else.

  5. #35
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    You're in fairly good shape, although #2 and #3 exhaust are a little tight.

  6. #36
    Instigator cele0001's Avatar
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    92 k75 about to go (maybe) buy one. What should I look for.

    I have to find somebody in the area with tools and shims, until then I will ride. If shim says 245, which one do I need to make it right. I guess 240
    Last edited by cele0001; 04-15-2014 at 02:31 AM.
    I want to be unique, just like everybody else.

  7. #37
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    .05mm = approx. .002". Shims only come in .05mm increments, so a 2.40 would give you about .011". Any more and it would be too loose.




    LONG MAY YOUR BRICK FLY!

    Ride Safe, Ride Far, Ride Often

    Lee Fulton Forum Moderator
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  8. #38
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    If you don't already have the shim tools or don't want to spring for the more expensive ones because you don't anticipate using them much, there used to be a guy that was making them. Don't know if he is still making them. You'd need to call or email him first to check. The quality was good for keeping a couple of bikes in shape for their life time. If you were going to make your living doing valve adjustments, you'd want the better ones. Kind of a Snap-on vs Harbor Freight kinda deal.

    Here's my comunication with him from 6 years ago:

    Hi Lee
    Yes, I have BMW "K" engine Valve Adj tools available for the 2 valve "K" engine.
    The 2 Pieces are made from 3/16? Laser cut steel. Working contours are identical to factory tools. Tools are new. Tools come w/ instruction sheet.
    $27 S/H included.
    Clutch pilots for K's are available also. New, from steel
    $18 S/H included.
    ?Pay Pal? to Polepenhollow, Cashiers Checks, Money Orders and Personal Checks accepted.
    I ship as soon as Pay Pal is posted or the check arrives.

    Thanks, Good Luck and Good Riding.
    Kenneth Lively
    318 S Hart St
    Palatine Il 60067

    polepenhollow@yahoo.com
    847-561-8555


    If you DO get in touch with him, please advise us of his latest status.



    LONG MAY YOUR BRICK FLY!

    Ride Safe, Ride Far, Ride Often

    Lee Fulton Forum Moderator
    3 Marakesh Red K75Ss
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  9. #39
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    Riding impression

    Well I had the K75RT for about 3 months now and I put about 500 miles on it.
    Riding impressions.
    RT in Florida heat, not a good thing. Burns the hell out of the legs. I would venture to say that this bike would be perfect in 30-40 degree weather.
    Storage is nice.
    Engine runs smoothly . My oil level inspection window is still black. I was hoping it would "self clean" itself but no luck.
    There is s small leak of gear oil coming from I assume input shaft seal (which is bad since I was in there recently. Oh well, practice makes perfect.
    Brakes are good but can not compare with my 04 Rockster.
    Handling is OK but again cant compare with the Rockster.
    Gearing is not really set for US highways. The bike is screaming at 90mph and I dont think it can go much faster than 100.
    Side cases are nice. Are there two different sizes since I think mine is about an inch wider than the "regular" k75 case?
    I think my tank breather is clogged since it blows off heavily when I open the tank. Are there areas to check?
    Overall a nice bike but not really something with a lot of "soul".
    Ill give it a year, see what happens, I think it might redeem itself in cold weather (Naked bike in 40degrees is no fun).
    I want to be unique, just like everybody else.

  10. #40
    Instigator cele0001's Avatar
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    I know I appreciate long term updates so here is one.
    K75RT gets ridden more than any other bike in the stable.
    I have 83 gl1100a, 04 Rockster, 85 V65 Sabre and the K.
    It is the "easiest" bike to ride. v65 wants to kill me, Rockster is fun but I am always illegal, and the Goldwing is too much (heavy) most of the time (nice highway cruiser).

    From a mechanical standpoint it has been pretty reliable.
    I changed rear brake pads (should have done it sooner).
    Didn't do anything to fix the odometer.
    I am getting 150 miles to 4 gallons of fuel, maybe somebody can let me know if that seems normal.

    There is a small leak at the "oil pan",is it a gasket or silicone seal?
    There is also a transmission oil leak that is coming out of the clutch housing and I think it is getting on the clutch as well since it feels very "grabby" at times. Usually when I first start riding and it gets better with time.
    If I go back in, which parts should I get in advance? I am not really understanding which seal can leak gear oil on the clutch. It should be the "pushrod" seal but open to suggestions. I dont want to go back in there any time soon.

    Other than that I am liking the bike. I am planning a cross country trip for fall next year and I decided to take K75 over the rest of the bikes in the garage. It just feels like a good friend.
    I want to be unique, just like everybody else.

  11. #41
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    For the engine heat I got 2inch foam pipe insulation and cut to fit between the tank and the side body work and that blocks the excessive heat

  12. #42
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    Quote Originally Posted by cele0001 View Post
    Side cases are nice. Are there two different sizes since I think mine is about an inch wider than the "regular" k75 case?
    I think my tank breather is clogged since it blows off heavily when I open the tank. Are there areas to check?
    The third generation integral bags (the ones with the bump pads and the roundel ABOVE the reflector) are an inch wider than the previous two generations.


    There are two nipples on the bottom of the tank about 8" forward of the right rear corner. The forward nipple is the tank breather. The rear one is the rain drain for the filler cap area. If there are hoses connected to them, they can get kinked. Ideally, there should be a black plastic cup attached to the frame below the nipples with a hose attached to the bottom of the cup draining to the right rear peg plate. This eliminates the hoses attached to the nipples, BUT the tank vent hose goes to the crankcase, so this must be capped so that you don't have a vacuum leak.




    LONG MAY YOUR BRICK FLY!

    Ride Safe, Ride Far, Ride Often

    Lee Fulton Forum Moderator
    3 Marakesh Red K75Ss
    Mine, Hers, Spare

  13. #43
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    Quote Originally Posted by cele0001 View Post


    I am getting 150 miles to 4 gallons of fuel, maybe somebody can let me know if that seems normal.

    There is a small leak at the "oil pan",is it a gasket or silicone seal?


    There is also a transmission oil leak that is coming out of the clutch housing and I think it is getting on the clutch as well since it feels very "grabby" at times. Usually when I first start riding and it gets better with time.
    If I go back in, which parts should I get in advance? I am not really understanding which seal can leak gear oil on the clutch. It should be the "pushrod" seal but open to suggestions. I dont want to go back in there any time soon.

    Normal

    Oil pan is sealant. Oil filter cover is O-ring.


    There are four seals that can leak oil into clutch housing:

    Engine oil:
    rear main seal
    O-ring behind nut that holds "flywheel" to output shaft (most common)

    Tranny gear oil:
    input shaft seal
    clutch pushrod seal on rear of input shaft

    Fix it soon or you will be buying a new clutch disc, pressure plate, and clutch cover.



    LONG MAY YOUR BRICK FLY!

    Ride Safe, Ride Far, Ride Often

    Lee Fulton Forum Moderator
    3 Marakesh Red K75Ss
    Mine, Hers, Spare

  14. #44
    Instigator cele0001's Avatar
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    Thank you for your reply lee. I am sure it is gear oil that is coming out.
    Transmission input shaft seal should not leak on the clutch plate. It should just go straight down? Push-rod seal should be the only possible culprit, and from my reading the job can be done without transmission removal. Is this correct? If anybody has first hand knowledge, I would appreciate the input.
    Thank you
    I want to be unique, just like everybody else.

  15. #45
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    I would think that it would be VERY hard to replace the pushrod seal without removing the input shaft from the transmission. That's the only way that I have ever replaced that seal (usually while repairing other things on customer's transmissions).

    There MIGHT be a special tool for pulling that seal with the tranny in place, but I'm not aware of one.




    LONG MAY YOUR BRICK FLY!

    Ride Safe, Ride Far, Ride Often

    Lee Fulton Forum Moderator
    3 Marakesh Red K75Ss
    Mine, Hers, Spare

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