Haybusa Parts and Service Member Support
« previous next »
Pages: [1]   Go Down

Author Topic: Your Thoughts??  (Read 5494 times)

Offline slaki

  • Rider
  • ***
  • Posts: 86
  • Gender: Male
Your Thoughts??
« on: October 21, 2013, 10:09:34 AM »
So what would you say caused this?

2007 GSXR 600.

Stock except for:

Knife edge crank
BMC filter
Full Arata pipe
PC 3

Bike is used on the track with 9000km on it. (Not sure how many km is track use)

Shim buckets are in pieces....  I know when this happened that the motor was not over reved. 4th gear, maybe 10 000rpm.

Could it be a cotter that came loose?
Bad workmanship?
Logged

Offline sportbikeryder

  • OFF TOPIC
  • Universal Post Whore
  • **********
  • Posts: 7352
  • Gender: Male
Re: Your Thoughts??
« Reply #1 on: October 21, 2013, 10:17:56 AM »
Valve probably just broke off.

Check teh crank and rod bearing on that cylinder. If the bearing started to go, the piston could have hit the head / valves and initiated it. Hard to say for sure the chicken and egg at this point if there is some bearing damage. My guess is the bearings are fine and the valve just broke.
Logged
Any day on a motorcycle like this that ends just needing parts and labor is a good day.
4.82, 158.67mph 1/8th mile 7.350, 200.32mph 1/4 mile Riding

4.392, 176.79mph 1/8th mile  6.610, 228.15mph 1/4 mile Tuning

Offline Yngve

  • Post Master
  • *****
  • Posts: 1765
  • Gender: Male
Re: Your Thoughts??
« Reply #2 on: October 21, 2013, 10:37:45 AM »
It will buff right out....




( somebody had to say it :) )


It happens now and then. Just ask Nicky Hayden. His engine lasted 4 laps in Malaysia.
Logged
I dont know what I am talking about but I do know that I am right :)

Offline Busa57

  • Rider
  • ***
  • Posts: 119
Re: Your Thoughts??
« Reply #3 on: October 21, 2013, 11:18:32 AM »
Might have spit a keeper out -- valve hits piston ect ect ect
Logged

Online Sport

  • OFF TOPIC
  • Post Master
  • **********
  • Posts: 1827
  • Gender: Male
Re: Your Thoughts??
« Reply #4 on: October 21, 2013, 01:40:39 PM »
I had a wrist pin keeper come loose once but all it did was score the liner.  Your problem is probably down farther.
Logged
Ride em if ya got em

Offline GSXRTURBO1

  • OFF TOPIC
  • Post Master
  • **********
  • Posts: 1830
Re: Your Thoughts??
« Reply #5 on: October 21, 2013, 03:44:22 PM »
valve keeper
Logged
Thomas

Offline GSXRTURBO1

  • OFF TOPIC
  • Post Master
  • **********
  • Posts: 1830
Re: Your Thoughts??
« Reply #6 on: October 21, 2013, 03:46:24 PM »
tried to post a link to a picture  :x
Logged
Thomas

Offline Abusive

  • Post Whore
  • ****
  • Posts: 546
Re: Your Thoughts??
« Reply #7 on: October 21, 2013, 06:26:28 PM »
What type of fuel were you running?
Logged

Offline dadofthree

  • OFF TOPIC
  • Post Master
  • **********
  • Posts: 1719
  • Gender: Male
Re: Your Thoughts??
« Reply #8 on: October 21, 2013, 07:18:55 PM »
A failure within the engine
Logged

Offline Jay

  • Post Master
  • *****
  • Posts: 1935
Re: Your Thoughts??
« Reply #9 on: October 22, 2013, 02:06:27 AM »
Retainer failure?
Logged

Offline slaki

  • Rider
  • ***
  • Posts: 86
  • Gender: Male
Re: Your Thoughts??
« Reply #10 on: October 22, 2013, 02:13:30 AM »
The bearings are all fine. Not one mark on them. I also have a feeling that the retainer came loose. Just a very expensive story. The main problem is that this is our 24 hour race bike and the race is in 5 weeks :grn:

Sourcing now for a new engine.....

@ Abusive. We running pump gas 95 oct.

Question: I dont know how much you guys know about 600 and 750's, but Im just gonna put it out there...

I am planning to buy a 750 engine for the extra power. Now I know that the two are the same except for the bore and stroke, whicch means that the 750 engine will bolt right in there. Only question now. Will I be able to use the same ecu? I know that the 600 revs to 16 000, but the 750 only to 14 000.

Can I use romraider and load a 750 map on the 600 ECU??

What else do I have to worry about?
Logged

Offline ninjafreek

  • Rider
  • ***
  • Posts: 228
Re: Your Thoughts??
« Reply #11 on: October 23, 2013, 04:16:46 PM »
600cc Over reved 1 too many times  Spit a shim
Logged

Offline knecum

  • Mad Post Whore
  • ******
  • Posts: 2092
  • Gender: Male
  • The Recipe!
    • www.knecumpower.com
Re: Your Thoughts??
« Reply #12 on: October 23, 2013, 10:12:51 PM »
Keeper failure, did you put a .018 hg in it? #1 no no for fixed deck barrels
Logged

Offline clearblue

  • Rider
  • ***
  • Posts: 279
  • Gender: Male
Re: Your Thoughts??
« Reply #13 on: October 23, 2013, 10:45:13 PM »
http://www.starvmax.com/media/kunena/attachments/1649/DSC_0051.JPG

Here is a pic that looks almost the same ,  keeper went valve dropped
Logged

Offline slaki

  • Rider
  • ***
  • Posts: 86
  • Gender: Male
Re: Your Thoughts??
« Reply #14 on: October 24, 2013, 02:07:48 AM »
So I bought a 750 engine. Luckily I got the 750 ECU with it, so that a plus point. Installed everything, started it, but cylinder 2 is dead. So back to fault finding....
Logged
Pages: [1]   Go Up
« previous next »