ADVrider

Go Back   ADVrider > Bikes > Thumpers
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 07-16-2004, 01:36 PM   #1
meat popsicle OP
Ignostic
 
meat popsicle's Avatar
 
Joined: Feb 2004
Location: Circumlocution Office of Little Dorrit
Oddometer: 14,147
Hearing your valves going out of specs

Recently someone mentioned that some racers had said they could tell by listening to the bike warming up that their valves were going out of specs and needed adjustment.

If this is true then it would be VERY VERY helpful (I assume) to many people here to try and convey that information. I am posting this in thumpers because I am most interested in thumpers (KTM LC4s to be precise).

__________________
Kronreif Trunkenpolz Mattighofen LC4 640

Its not so much staying alive; its staying human that counts.
meat popsicle is offline   Reply With Quote
Old 07-16-2004, 01:51 PM   #2
creeper
Still alive...
 
creeper's Avatar
 
Joined: Dec 2003
Location: Puget Sound
Oddometer: 10,718
Meat, meat, meat... What the hell are we gona' do with you? Is moto-hypocondria contagious?

I think you'd have to go ALOT of miles without a valve adjustment before you could "hear" loose rockers...
__________________
So... how's tricks?
creeper is offline   Reply With Quote
Old 07-16-2004, 02:00 PM   #3
meat popsicle OP
Ignostic
 
meat popsicle's Avatar
 
Joined: Feb 2004
Location: Circumlocution Office of Little Dorrit
Oddometer: 14,147
Its not something I think about every time I start the bike wise guy...

but in situations where one might push the envelope - it would be great to have a "field" check, to know if trouble is coming.
__________________
Kronreif Trunkenpolz Mattighofen LC4 640

Its not so much staying alive; its staying human that counts.
meat popsicle is offline   Reply With Quote
Old 07-16-2004, 02:01 PM   #4
creeper
Still alive...
 
creeper's Avatar
 
Joined: Dec 2003
Location: Puget Sound
Oddometer: 10,718
Quote:
Originally Posted by meat popsicle
wise guy...
__________________
So... how's tricks?
creeper is offline   Reply With Quote
Old 07-16-2004, 02:06 PM   #5
meat popsicle OP
Ignostic
 
meat popsicle's Avatar
 
Joined: Feb 2004
Location: Circumlocution Office of Little Dorrit
Oddometer: 14,147
that little jive guy cracks me up

BEER FRIDAY! Sup. just brought beers around!
__________________
Kronreif Trunkenpolz Mattighofen LC4 640

Its not so much staying alive; its staying human that counts.
meat popsicle is offline   Reply With Quote
Old 07-16-2004, 02:11 PM   #6
Rad
Just me
 
Rad's Avatar
 
Joined: Sep 2001
Location: Santa Cruz, Calif
Oddometer: 12,160
A noisy valve is a happy valve

Beware of da quite valve
Rad is offline   Reply With Quote
Old 07-16-2004, 02:44 PM   #7
meat popsicle OP
Ignostic
 
meat popsicle's Avatar
 
Joined: Feb 2004
Location: Circumlocution Office of Little Dorrit
Oddometer: 14,147
noise is good

Ahhh, our first clue!

I have heard noisy (bad) valves on cars, kinda unmistakable once you know what you are hearing. Is that what I will hear on the bike when it starts connecting with the seat? When it goes the other way (stays open) will It start to get other symptoms? Maybe like pre-ignition or such?

Has this been discussed before?
__________________
Kronreif Trunkenpolz Mattighofen LC4 640

Its not so much staying alive; its staying human that counts.
meat popsicle is offline   Reply With Quote
Old 07-16-2004, 03:29 PM   #8
Mack
Gone, but never forgotten. RIP, Mack...
 
Mack's Avatar
 
Joined: Sep 2002
Location: Austin, Texas USA Native Oregonian
Oddometer: 3,797
Jimmy can sense it, seat of the pants bike response wise, noise was not mentioned, though hard starting was.
__________________
Österreichische Motorräder und deutsche Autos. Wie wundervoll kann das Leben sein
Mack is offline   Reply With Quote
Old 07-16-2004, 03:41 PM   #9
meat popsicle OP
Ignostic
 
meat popsicle's Avatar
 
Joined: Feb 2004
Location: Circumlocution Office of Little Dorrit
Oddometer: 14,147
Ah ha! It was you Mack! Well, maybe yo mentioned that before. I suppose that seat-o-da-pants response feeling would be difficult to convey in words... (and for a bike-o-chondriac like me it might be really difficult eh creeper)

What about that hard starting business? Dare I enquire?
__________________
Kronreif Trunkenpolz Mattighofen LC4 640

Its not so much staying alive; its staying human that counts.
meat popsicle is offline   Reply With Quote
Old 07-16-2004, 03:56 PM   #10
zippy
Hinter dem Feld
 
zippy's Avatar
 
Joined: Dec 2003
Location: St Pete
Oddometer: 2,112
hard starting

good one. Yes hard starting very good sign it's time for a valve check. Follow the manuals intervals for checks. Now when you run out of adjustment and the valves have recessed into the head that's a distinct sound.
__________________
Fortunately, I'm adhering to a pretty strict, uh, drug, uh, regimen to keep my mind, you know, uh, limber.

The Dude
zippy is offline   Reply With Quote
Old 07-16-2004, 04:24 PM   #11
Jeff620RXC
Studly Adventurer
 
Jeff620RXC's Avatar
 
Joined: Apr 2004
Location: Hutchinson, KS USA
Oddometer: 567
On the LC4's the valves usually get tighter not looser. Right?
I've read if they get tighter and tighter they are quiet right up until...it is too late....clunk!
Jeff620RXC is offline   Reply With Quote
Old 07-16-2004, 04:39 PM   #12
creeper
Still alive...
 
creeper's Avatar
 
Joined: Dec 2003
Location: Puget Sound
Oddometer: 10,718
Oh... wait... I can hear my right EX. tightening up... and... I can hear the left IN. loosening!!! You know... if you hold the bike up to your ear, you can hear the oce.... Hey, does Austria have an ocean?
Of course you can only hear this shit when the bike is not running, cause when it is... you couldn't hear a fuckin' thing over all the other normal racket.

Sorry, this is the funniest unintentionally funny thread in quite awhile.

Go ahead, call me an asshole, I probably deserve it

Creep
__________________
So... how's tricks?
creeper is offline   Reply With Quote
Old 07-16-2004, 05:30 PM   #13
meat popsicle OP
Ignostic
 
meat popsicle's Avatar
 
Joined: Feb 2004
Location: Circumlocution Office of Little Dorrit
Oddometer: 14,147
Why can everyone be almost serious about this but you creeper?

Just kidding, thanks for the vote of confidence on the LC4, I thought it was more reliable than some here seem to believe. Jebzus, the way some talk about the oil change you think it required splitting the case! Once I saw it no prob. Thanks Tom (Moore and Sons in Santa Cruz)!

Seems that Mack da Knife and Jeff420RXC post's seem to agree that there is little blatant warning... so I guess its just something that comes with experience.
__________________
Kronreif Trunkenpolz Mattighofen LC4 640

Its not so much staying alive; its staying human that counts.
meat popsicle is offline   Reply With Quote
Old 07-17-2004, 02:11 AM   #14
Drif10
Accredited Jackass
 
Drif10's Avatar
 
Joined: Jun 2003
Location: Gates of Moscow
Oddometer: 45,419
Quote:
Originally Posted by meat popsicle
Why can everyone be almost serious about this but you creeper?
That's because creep was dropped on his head too many times as an adult..
Quote:
Seems that Mack da Knife and Jeff420RXC post's seem to agree that there is little blatant warning... so I guess its just something that comes with experience.
Practice, practice, practice. Spend a lot of time with a machine, paying critical attention to it in all regimes, and you'll know when it ain't right. For you to be able to develop that rapport, it is essential for it to be properly and accurately tuned first, otherwise you have no accurate baseline from which to reference.

Used the johnson method for valve adjustments and it worked okay, but it was a pain. Now I'm doing it by feeler, works much better.
__________________
I guess your get up and go needs a coffee. - Drif5
Drif10 is offline   Reply With Quote
Old 07-17-2004, 08:07 AM   #15
Ostrich
Jaded and Happy
 
Ostrich's Avatar
 
Joined: Jun 2002
Location: Fresneck or Bust Baby!
Oddometer: 8,731
I have to gift to tell, but the catch is: you have to bring your bike to Fresno so I can thrash around on it for an hour. After an hour of riding I should be able to tell. If not, I may have to ride another hour and repeat until I can make a diagnosis. What are friends for?
__________________
If you use Geico watch out. The buyout for my car was way below any objective figure (KBB, NADA, etc.). Also, I could not get in touch with anyone on the first try during a claim resolution.

Just because it's a zoo out there doesn't mean you have to view it from a cage!

Don't be an impulse buyer... afterall you have time..
Ostrich is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 02:08 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014