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Thread: Oil filler cap on R bike

  1. #1
    RIDERR1150GSADV
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    Question Oil filler cap on R bike

    I am new to this generation of oilbikes and this forum,my last bike was more than 20 years ago, and I have heard about the oil filler caps comming off the bike. Is there a better than factory alternative?

  2. #2
    Focused kbasa's Avatar
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    Re: Oil filler cap on R bike

    Originally posted by rider1150RT
    I am new to this generation of oilbikes and this forum,my last bike was more than 20 years ago, and I have heard about the oil filler caps comming off the bike. Is there a better than factory alternative?
    Welcome!

    I've never had a problem with those, but there have been reports of the oil sight glass popping out. It's not happened to me, but I carry a spare when I tour.
    Dave Swider
    Marin County, CA

    Some bikes. Some with motors, some without.

  3. #3
    Megalodon fish's Avatar
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    Re: Oil filler cap on R bike

    Originally posted by rider1150RT
    Is there a better than factory alternative?
    I like the Moto Techniques leakproof cap.

    "No one wants advice -- only corroboration." -John Steinbeck

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  4. #4
    Miserable Mark MarkF's Avatar
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    How does it work?

    Does the threaded fitting insert into the cylinder head with the same 2 prong half turn? Or does it require some modification?

    Mark

    P.S. I've never had my OEM cap move even slightly.

  5. #5
    Focused kbasa's Avatar
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    All of ours kind of ooze a little oil around the filler. I'm not sure if it's the chimpanzee that puts the oil in the bike or if the cap is actually seeping.

    Dave Swider
    Marin County, CA

    Some bikes. Some with motors, some without.

  6. #6
    El Dookey loves to ride. 99007's Avatar
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    No oozin' while I'm cruisin'

    I am 3k miles into my second R bike (turned the other one in with 12,500 miles in July). I haven't had any oil seepage or oozing from either bike.
    This discussion has me worried? Do those caps really pop off? Yipes.
    Don't winterize; Rounderize!
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  7. #7
    Focused kbasa's Avatar
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    I've never heard of an oil filler popping off, but I have heard of oil level sight glasses popping out.
    Dave Swider
    Marin County, CA

    Some bikes. Some with motors, some without.

  8. #8
    RIDERR1150GSADV
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    Thanks for all the replies!
    I did not mean to scare anyone with the question but I had read about this potential problem and while reading this forum I found out the sightglass is a weak point??? Well I guess I'll get a spare and look at a different cap too!
    It is better to be safe than sorry and having a few spare parts isn't bad anyway

  9. #9
    Megalodon fish's Avatar
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    Re: How does it work?

    Originally posted by oilhed
    Does the threaded fitting insert into the cylinder head with the same 2 prong half turn? Or does it require some modification?

    Mark

    P.S. I've never had my OEM cap move even slightly.

    Totally different. You have to remove the valvecover, pop out the plastic thingy, then the threaded insert gets pushed in (o-ring) and tighten the set screws (use locktite!!)
    "No one wants advice -- only corroboration." -John Steinbeck

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  10. #10
    Manhattan Rider
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    I have never heard of losing the oil cap. As long as seal is good and the cap is properly installed, you shouldn't lose it. If your concerned, purchase an extra for a couple bucks and keep it under your seat. I doubt you will ever need it.

    Almost every stock oil cap leaks oil, even with a new seal. My RT has about 60K, so I ride it in all weather. However, I like to ride a spotless bike. The one exception is a small amount of oil leaking around the oil filler cap. For some odd reason, a little bit of oil on an oilhead seems appropriate. I wouldn't have it any other way. If I ever purchased one of those fancy caps, I would probably squirt a little bit of oil around the cap for character.
    Last edited by Ken Krumm; 08-29-2003 at 11:40 AM.

  11. #11
    RIDERR1150GSADV
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    Cool

    I like the caracter part of some oil on the engine:cool:
    As long as it is just a little, I am kinda anal about cleaning my bike too.
    I will keep an eye peeled on the cap however, although it does appear it is not comming off that easy after reading the reply I got on my original question.

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