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Thread: Noise on start up

  1. #1
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    Noise on start up

    I have a 1969 R60\US with 11,000 miles on it that will give a squeek\ squal from the engine when it is started. Not for long and just the first time. What might be going on?

  2. #2
    Administrator 20774's Avatar
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    Do you have any sense from where in the engine the noise is coming from? Front, back, top, bottom, right, left? How long has this been doing it? Does it happen all the time - in the summer, winter? Does it happen only on the first start of the day when the bike sits overnight or does it happen every time, even after a short gas stop?

    About the only thing I can think of is engine breather at the front of the engine, or possibly something in that cavity.
    Kurt -- Forum Administrator ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

  3. #3
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    Rear main seal???

    Have you just recently had a rear main seal installed? Some of the new ones will squeak a little until they are broken in or warmed up.

    What condition are your generator brushes in? At times and under certain conditions they will make a noise similar to squeak or rubbing noise.

  4. #4
    Long Range Rifleman
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    Have you checked the alternator belt tension?

  5. #5
    Rally Rat
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    Belt tension?

    Quote Originally Posted by NI5L View Post
    Have you checked the alternator belt tension?
    Please take this to the Oilhead forum.
    Boxerbruce

  6. #6
    Cam Killer marchyman's Avatar
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    Quote Originally Posted by NI5L View Post
    Have you checked the alternator belt tension?
    The generator is driven directly by the crank.

  7. #7
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    The noise comes from the rear middle of the engine. I don't sart and ride this one often but the first time then it's fine from there on\day. Doesn't sound awful just something i don't want to get away from me. The bike has to be 100 % orignal seals and all with no leaks. Sounds a little more than a dry seal but am no expert.

  8. #8
    Curmudgeon At Large Bobmws's Avatar
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    How long does it sit between rides? Maybe a bit of moisture/rust at the clutch plate?
    Bob Weis
    '04 K12RS - Hannigan Hack
    www.earplugco.com

  9. #9
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    If it's brief, could it be the starter sticking?

  10. #10
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    Clutch is not pulled when i start it and the noise only last 3-4 sec and it does sit for long periods between starts.

  11. #11
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    Wild guess but easy to check - see that the bolt in the center of the generator armature is firmly screwed in - if the armature were loose on the tapered crankshaft end it might squeal till it found its center

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