NINJA12
Needs a job
Posts: 3310
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posted September 22, 2004 11:30 AM
Kawasaki is DEAD
My 12 gave up the ghost last night
at the track. I hit the rev limiter
when the it didn't shift ON SPRAY.
Didn't knock or anything.
Next pass window in the block.
I need a cases or motor.
  
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swft
Needs a life
Full throttle!
Posts: One MEEEEEELLION
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posted September 22, 2004 02:52 PM
Major fucking bummer, man!
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osti33
Needs a job
Posts: 2973
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posted September 22, 2004 04:57 PM
That sucks dude. Sorry to here it...
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Ra12r
Zone Head
Posts: 919
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posted September 23, 2004 06:21 AM
Could someone please explain the mechanics of what happened to cause his motor to do this on the NEXT round??
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NINJA12
Needs a job
Posts: 3310
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posted September 23, 2004 08:19 AM
My guess would be that it damaged the bearing maybe nicked a valve ,just not bad enough to hear. During the ride to staging, burnout, 4k rpm stage , it loosen more.
probably could have heard it by then if listening. ADD SPRAY and BOOM!
my .02
Any other ideas?
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1bad12r
Zone Head
Posts: 567
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posted September 23, 2004 09:58 AM
So much for my last hopes of a nitrous zx12.
____________
768 Ryderz
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kzz1
Zone Head
"Show me whatcha workin with"
Posts: 908
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posted September 23, 2004 10:26 AM
Was it a stock motor 12? Did you install heavy duty valve springs in the head? I have heard that when you spray a 12 that heavy duty valve springs are needed from floating the valves?
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NINJA12
Needs a job
Posts: 3310
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posted September 23, 2004 11:37 AM
yes heavy spring and sprayed many times.
When i get a new motor , it will get sprayed also.
Just make sure the shifter is working RIGHT.
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Ra12r
Zone Head
Posts: 919
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posted September 24, 2004 06:46 AM
Could someone explain how hitting the rev limiter causes a valve to float or drop?
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entropy
Moderator
Posts: 8671
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posted September 24, 2004 07:40 AM
Ninja12,
REALLY sorry to hear yr pain.
Rapedape (heather) on labusas is selling a complete motor for $1600?; JUMP on it, dude!!!!!
BTW,
because I have bad hearing, i have one of those motor stethyscopes, and listen to the top end and bottom end between passes. Am I gun shy? YEP!
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This moderator uses moderation in moderation
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RAC4IT
Needs a job
Bergie
Posts: 3009
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posted September 24, 2004 09:16 AM
Another reason to TAKE THAT AIR SHIFTER OFF!
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1bad12r
Zone Head
Posts: 567
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posted September 24, 2004 09:16 AM
Ninja12,
If ya got a 00-01 thats a steal for that motor.
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768 Ryderz
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ninja12
Needs a job
Posts: 3310
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posted September 24, 2004 10:12 AM
Thanks, he says i got it!
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1bad12r
Zone Head
Posts: 567
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posted September 24, 2004 10:19 AM
Cool, if it wasn't for tha boards what would we do ?
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768 Ryderz
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ninja12
Needs a job
Posts: 3310
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posted September 26, 2004 01:25 AM
Kawasaki is alive again!
slight problem with the trans but
very ridable.
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bossman12r
Zone Head
Posts: 513
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posted September 26, 2004 01:10 PM
Glad to hear you got it, I was looking but no luck.
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gen 4 zx10 is fast
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ninja12
Needs a job
Posts: 3310
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posted September 26, 2004 04:54 PM
I guess i was in the right place at the right time.
Even a stopped watch is right twice a day.
I have kicked myself all summer for not getting Ryan's
motor back in the spring, but it worked out ok in the end.
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Farmer Rog
Novice Class
Posts: 92
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posted October 05, 2004 09:31 AM
Can you give a little more detail:
Stock motor? How much spray (wet/dry)?
Fuel/plugs? Tuned to what A/F ratio?
How long on the limiter?
____________
ZX-12R, stock motor, Muzzy/PC3 63in, 60-shot dry, 750#, 9.001
ZX-14, stock motor, Brock smeg/PC3, 63.5in, ~750#, 9.31 NA, 8.95 40-shot dry.
NorthwestDragbike.com
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NINJA12
Needs a job
Posts: 3310
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posted October 06, 2004 08:35 AM
I did it the blind expensive way.
No dyno, so i tried every map know to man.
I would add or subtract fuel and read MPH.
Once i got a good base map, I spray on the
Safe side and read plugs.
34 (40hp)jet with 93 gas 3 bars up on the pc3.
switched to 18 22 (48 hp)wet with 2 degree pulled.
6 over swingarm spraying at the 60' mark when i can.
I hit the limiter pretty hard. Really caught me off guard because
it shifted all day, and I didn't have my feet on the pegs.
When i pulled the head i found the exhaust valves bent.
Over reving will eventually get you with or without spray!
I really don't think spray was the blame,
There was a loose nut in the seat (me). 
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1bad12r
Zone Head
Posts: 567
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posted October 06, 2004 08:22 PM
Was this on a stk motor ? What kind of times were you turning ?
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768 Ryderz
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ninja12
Needs a job
Posts: 3310
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posted October 07, 2004 05:05 AM
nope, no details.
best time 8.87@160
best 60' 1.46
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Farmer Rog
Novice Class
Posts: 92
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posted October 07, 2004 07:15 AM
Thanks for the info Ninja12. Sounds like you had a conservative (fuel/timing) enough setting.
The 12R cuts fuel as the rev-limiter right? I wonder why.
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ZX-12R, stock motor, Muzzy/PC3 63in, 60-shot dry, 750#, 9.001
ZX-14, stock motor, Brock smeg/PC3, 63.5in, ~750#, 9.31 NA, 8.95 40-shot dry.
NorthwestDragbike.com
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