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Pinned So what have you done to your bike today?

Discussion in 'The Pub' started by kiffsta, Nov 3, 2013.

  1. Andych

    Andych Well-Known Member Premium Member

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    Sold my little fold up trailer a few weeks ago (still not picked up yet but is paid for) and managed to pick up a 6x4 box trailer with cage and rego till Feb $150 less than I sold the Fold up for :)
    There is a little bit of rust in the floor at the back but that is an easy fix.. the rest of the day has been taken up with Puppy proofing the back yard.. we bought a Puppy for my son who has had another setback with his fight to beat Cancer... All I can say is F#$K Cancer..... I need to find a window stick that says that :mad:
     
  2. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

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    Sorry to about your son's setback.
     
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  3. kiffsta

    kiffsta Administrator Staff Member Dirty Wheel Club Contributing Member

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    Sorry to hear about your son, my wife has been though it and I agree with you , **** cancer
     
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  4. Gizziracer

    Gizziracer Well-Known Member Premium Member Contributing Member

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    Yep, sorry to hear about that.
     
  5. Jo Verhelst

    Jo Verhelst Forty2 Premium Member Contributing Member

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    Yes cancer is a real pita, I lost my girlfriend to it a couple of years back, but also have some friends who recovered from it, so all the best wishes and keep your head up
     
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  6. Frankster

    Frankster See the World before you leave it Staff Member Premium Member Ride and Events Crew

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    Sad to hear that Andy. You're due some good news.
     
  7. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

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    I put the FZR back together today after sitting in piece's for 3 and a bit month's, it hasn't been ridden since the end of March too.
    So now i can re-register it after tea, and get back out riding again
    Daylight saving's started this morning as well.

    20191006_173122.jpg
     
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    Last edited: Oct 6, 2019
  8. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

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    Saturday I did a track day on the RS125 at Morgan Park. It was awesome: the track is great, the bike made you learn to ride more effectively. I was riding within an inch of both our lives... Mostly a matter of incompetency. Lots of fun but I think I'm too big for the bike.
     
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  9. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

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    My Bike:
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    Just checked with mylaps; first session best time was 2:04 (very slow), then got it down to 1:57, before a hot lap in the third session of 1:50.5 - my best time of the day, which is surprising, I thought I was getting faster, must have just cooked a corner in every other lap of of the day. I found a few ripple strips
     
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  10. Frankster

    Frankster See the World before you leave it Staff Member Premium Member Ride and Events Crew

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    Good work Shane. Any pics?
     
  11. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

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    None that I took, I couldn't multitask, but there were photographers there. I did find myself posing for photos when I saw them - it probably looked like a drunk guy pretending to be sober..

    There might be pics on the motorcycle sportsmen's site/FB.
     
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  12. sharky

    sharky Well-Known Member Premium Member

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    Try the thrust bearing in the clutch plate, they should be press fitted, most just fall out though. With the clutch pulled in, the push rod pushes against the thrust bearing which removes the rattle.
    20191008_114646.jpg
    20191008_115849.jpg
     
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  13. Frankster

    Frankster See the World before you leave it Staff Member Premium Member Ride and Events Crew

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    @sharky When you say "with the clutch pulled in", are you saying the clutch level is pulled in? If you are, then that's when the rattle is present. When you put the bike in gear and release the clutch, the rattle disappears as soon as the clutch grabs. Sorry, just wanted to clarify the issue.
     
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  14. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

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    It's starting to sound like ZXR just have noisy gearboxs
     
  15. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Multi-plate clutches are horribly noisy things. Listen to the dry clutch on a Ducati. Sounds like ten skeletons in a tin bucket. Many bikes have sound dampeners on the inside of the clutch cover for that reason.
     
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  16. ruckusman

    ruckusman Well-Known Member Premium Member Dirty Wheel Club

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    On the topic of the noisy clutch - I've got an FZR engine in peices ATM and just looking at the clearances through the drive train I'd say it's just movement between the various gears, from the primary drive gear onwards

    Consider that the FZR is a little different to the ZXR with the springs in the clutch basket, however - there is some lash on the primary gear reduction, then through the clutch basket and into the transmission. One the FZR there is considerable movement of the various gears on the shaft splines - mine aren't worn, it's by design.

    So thinking on that - with the clutch engaged, but no gear selected in neutral, several of the gear pairs are engaged but not locked in with the gears that are solid on the shaft - these all have movement on their respective shafts and will rattle backwards and forwards.
    When the engine is idling, it isn't turning perfectly, it's pulsing.

    I should also add that there is clearance on the primary drive gear and the basket on it's bearing, not heaps, but it will also rattle a little when the transmission isn't in gear and it's loaded.

    Now when you disengage the clutch, (pull the lever) it partially disengages the primary driven gear clutch basket from the first gearbox shaft, but clutch drag will still keep it moving somewhat - this will reduce the noise from the gears a little as they shouldn't be spinning as much (theory), but now you have the clutch plates free, more noise.
    You put it in gear; Now there is clutch drag spinning the transmission slightly, that's why the transmission clunks and the sprocket & chain jump a little.

    Now with the slight drag through the entire drive system out to the back wheel, all of the lash through the gear train is taken up, from the primary drive gear on through the transmission, additionally the clutch plates are all dragging consistently with the pulses of the engine somewhat damped by the springs/rubbers behind the basket. I believe sloppiness wear in these springs/rubber damper contributes to more noise, but a perfect damping here lessens the noise, it doesn't eliminate it entirely.

    Beginning to engage the clutch, all of the pulses from the engine are damped right through the drive train with the lash taken up and the noise diminishes(disappears).

    This is all just theory, but it wasn't until I saw the amount of movement (by design) through the gears in the transmission that the cause for the noise became evident.
    The engine cases are relatively thin, so it's audible, in comparison to the transmission on say a car AND all of the gears are straight cut in the bikes, from the primary drive on through - if you watch any V8 supercars you can hear the whine from the straight cut primary on their transmissions for comparison.

    With all of that said, I do have the clutch basket on an FZR apart to replace the damping rubbers to see if that does lessen the noise when everything goes back together, but having seen the clearances throughout the transmission I won't be thinking that I've done something wrong if it still sounds like a bag of spanners rattling because now I know what I'm hearing.
     
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  17. Frankster

    Frankster See the World before you leave it Staff Member Premium Member Ride and Events Crew

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    Good logic Ruckus. The rattle (in neutral) does not change if you give the engine a rev, but I haven't changed the idle speed to see if that has an affect.

    @ShaneP I've only ever had one ZXR engine rattle, so not sure it's a common issue, but if multiple forum members have had it, then it's something to get to the bottom of. The engine I used in the salt bike was silky smooth with standard idle rpm. Putting it in gear didn't produce any clunks or jolts. I was running 30W racing oil in that engine, so less "spin" affect, but still no noises from gearbox in any static/drive situation.
     
  18. GreyImport

    GreyImport Administrator Staff Member The Big Cheese Contributing Member

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  19. jmw76

    jmw76 Well-Known Member

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    My Bike:
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    Looking for some better shocks for my RC project.
    Kinda like the look/features of these but want to find out if anyone has had any experience with similar.
    Would like at least rebound and preload adjustment. Do not want a seperate oil reservoir.
    They need to be 330mm between eyes.
    I struggle to get sensible answers back from suppliers on spring rates, etc.
    My current shocks are just springs around a shaft. They are horribly underdamped.
    Would be nice if I could find something with a slightly better lead time also.

    https://www.ebay.com.au/itm/330mm-P...079680?hash=item215121a300:g:R0IAAOSwsrlcQa12
     
  20. Oigy

    Oigy Owner of many bikes, keeper of few :( Premium Member

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    A couple of years ago, I got some shocks of Ikon, a local mob from Albury I believe, rang them up, easy to talk to good service asked what sort of loads I was carrying, how I rode ect, got the shocks in a week, reasonable price and they worked brilliantly. Couple of weeks later, got a coupon for 60% of matching progressively wound fork springs which I took up. TOTALLY transformed the ride and handling of my bike. I know they do a large range and will also do special orders if required. Had me sold :)
     
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