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  • I'm back

    Well......I've been haunting the forum since my last zed departed the shed, just to keep an eye on what's going on. .....and to make sure Dex is behaving himself.. sort of.
    I am now the proud owner of a Grom, Moy's nephew bought it at an auction and decided to sell it on. I've been doing a few bits on it but still have to do the rattley timing chain. Seems thats a common problem with them.
    Once I thought I was wrong, I was mistaken

  • #2
    Well ,,
    there goes the quiet and sane approach on the forum .

    good to see you about peter .
    its engine oil madge ,,,
    Your soaking in it ,,!!

    Comment


    • #3
      What is the issue with Grom timing chains ? Iíve done around 8,000 kms on mine with no issues .

      Good to see you canít kick the addiction Peter.

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      • #4
        Well, apparently the tensioner has a rubber knob on the top that's not up to the task. I'm in the process of dismantling it now see we'll see what's inside.
        Once I thought I was wrong, I was mistaken

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        • #5
          Here is a replacement button and a complete replacement cam chain tensioner set:

          http://www.yuminashi.eu/heavy-duty-c...sx-sf-grom-sf/

          http://www.yuminashi.eu/heavy-duty-c...110cc-engines/
          Classic Honda 50's Australia - Visit our online store at - www.classichonda50saustralia.com.au

          PERFORMANCE, REPRODUCTION AND OEM PARTS TO SUIT OLD AND NEW HONDA AND OTHER 4 STROKE MINIBIKES AND MOTORBIKES INCLUDING KAWASAKI, YAMAHA AND SUZUKI.

          Parts to Suit: Honda Z50A, Z50J1, Z50JZ, Z50R, Z50JDM, Z50M, QA50, QR50, MR50, XR50, CRF50, ATC70, CT70, CZ100, MSX125 (Grom), ST70, SL70, XL70, TRX70, XR75, XR80, TRX90, Kawasaki KLX110 and Z125 models to name a few.

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          • #6
            Thanks Jaimie, apparently Honda knows of the problem, the replacement part is stronger. Had a hold up on the job, I didn't have the right flywheel puller......grrrr. It's supposed to be here thursday / friday, so should be able to fix it on weekend.
            Once I thought I was wrong, I was mistaken

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            • #7
              Well, I got a flywheel puller and got that off. Seems the chain has virtually no tension, like the tensioner has topped out in its slide.
              I'm making a sprocket holder to get cam bolt undone then I can get the chain out and compare it, the tensioner arm etc, with the new one.
              Once I thought I was wrong, I was mistaken

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              • #8
                How many kilometres has your bike done Peter ?

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                • #9
                  It's got 23,000 ks.
                  I put the new chain and tensioner end in....... still the same rattle. So i can discount the timing chain.
                  Might need more investigating. Been checking other bits but all seems fine. I bought it second hand so I know nothing about its history.
                  Once I thought I was wrong, I was mistaken

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                  • #10
                    I remember the days of the old cbr 1000 cam chain issues. Honda came to the party and replaced them for free.
                    Save the monkeys

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                    • #11
                      Well the news is grim with the grom. Stripped it down on weeked and found a frizzed piston and a seized gudgeon pin.
                      Once I thought I was wrong, I was mistaken

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