August 22nd track day cancelled - Sportbike Forum: Sportbike Motorcycle Forums
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post #1 of 27 (permalink) Old 08-16-2004, 03:08 AM Thread Starter
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August 22nd track day cancelled

BBQ,
It has been cancelled: http://www.msportbike.com/phpbb/viewtopic.php?t=602
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post #2 of 27 (permalink) Old 08-16-2004, 04:24 PM
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Drat!

That's a bugger, wanted to go up this weekend and test the bike.

I'm told it's fixed. No more wobbles, fade and bottoming out


Is the 5th September really the first time we can get on the track??
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post #3 of 27 (permalink) Old 08-16-2004, 05:02 PM Thread Starter
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Re: Drat!

Quote:
Originally posted by Boycie
I'm told it's fixed. No more wobbles, fade and bottoming out
Oh poor guy, I'm sure there is something else you can complain about!!
Seriously, for your sake I hope the problems are gone though.
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Is the 5th September really the first time we can get on the track??
That's the word. Let's see.
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post #4 of 27 (permalink) Old 08-16-2004, 06:01 PM
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Cheeky Monkey

Well champ, the bill probably!!!

I don't know what they have done, but they did mention flying brake parts in from Aus so I hope we're talking seal kits only.

It seems all my woes were down to sticky pistons and I hope they're right! One or more of them weren't returning properly. Not sure how that caused the vibration but certainly pad wear and fade seems logical.

That being the case, then here's a list of things I didnt need to buy over the past two months or so:

1 x New Disc
1 x Set wheel bearings
1 x Head stock bearing
4 x Sets of pads
18 x Gallons of brake fluid

The good news was the front suspension, nought wrong with it. I'm afraid the bottoming out was down to poor setup. I only have myself to blame!

As a bonus, they found some minor stuff with engine. Valves needed adjustment badly as they well out of spec. Pots 2 & 3 were being fed treakle instead of fuel mixture which wasnt helped by the overgenerous fuel map I had downloaded from the web!

They say they've re-calibrated the injectors from 'cake mix' to 'fuel' but even so, the map was a bag of wank and I have had to promise never to be smart and try 'shot-in-the-dark' mapping again.

"Tinker ye not, oh wisdom neglected. It shall verily bite ye on the grape(s)"
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post #5 of 27 (permalink) Old 08-16-2004, 06:45 PM
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The vibration was when you applied the brakes, right? So it was probably due to the pads not being forced equally and squarely against the disks, either because they were sticking under pressure or because of uneven wear caused by not releasing properly.

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post #6 of 27 (permalink) Old 08-17-2004, 05:01 AM
 
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Wise after the Event

Quote:
Originally posted by 1-4 The Road
The vibration was when you applied the brakes, right? So it was probably due to the pads not being forced equally and squarely against the disks, either because they were sticking under pressure or because of uneven wear caused by not releasing properly.
Isn't that what Boycie just said Trevor......

Last edited by Blue Catt; 08-17-2004 at 05:03 AM.
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post #7 of 27 (permalink) Old 08-17-2004, 05:03 AM
 
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Re: Cheeky Monkey

Quote:
Originally posted by Boycie
"Tinker ye not, oh wisdom neglected. It shall verily bite ye on the grape(s)"
How are the grapes, now that you're not forcing yr morning stool... pray tell!!

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post #8 of 27 (permalink) Old 08-17-2004, 06:21 AM
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Maybe not much help but I was responding to this:

Quote:
One or more of them weren't returning properly. Not sure how that caused the vibration...

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post #9 of 27 (permalink) Old 08-17-2004, 05:35 PM
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Ladies.....ladies....please!

I think the proof of the pudding will be on 5th September when its gets ragged around the track. If the vibration goes, then I'm happy to notch this one down to sticky pistons. If not then carry on....!
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post #10 of 27 (permalink) Old 08-18-2004, 10:23 PM
 
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You may want to talk to Armand Ali (7) about a similar problem- it really sounds like a set-up issue.

His bike was so hard that when I jumped on it I almost squashed me nuts- and I'm 20kg heavier than him. He was complaining that the bike was running wide out of Turn 5. His mechanic backed off all the settings- preload, compression and rebound all at once mind and now the front is really chattering on heavy braking although this has cured the problems on the other turns. Previously he used to brake at 150m on the front straight without any problems.

I told him that if the chattering occurs in dynamic state (change of acceleration), ie when feeding in the brakes it's most likely an issue of damping. However, if it happens when the suspension is settled down on a heavy braking section like turn 1, then it has little to do with damping as the suspension will be on the spring.

He is fitting a full Race-tech damping kit front and rear and changing the springs to suit his weight- you may want to ask him to see how this fares unless you have already done the same in which case he will probably want to hear from you!
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