May 13th, 2013, 04:14 AM | #1 |
ninjette.org member
Name: Martin
Location: Slovenia
Join Date: Mar 2012 Motorcycle(s): 08 Ninja 250R (FI) Posts: 169
|
did u notice any change when you done your valve job?
Hy
just wondering.. what should i expect from it(how will it affect engine)? Have never done valve job before and im curious Tnx |
|
May 13th, 2013, 05:14 AM | #2 |
Fast-Guy wannabe
Name: Jason
Location: Brentwood, Ca
Join Date: Oct 2011 Motorcycle(s): 2009 Ninja250, 2011 RM-Z250, 2004 NSR50, Posts: A lot.
MOTM - Jan '13
|
Waited till 12,000 miles for my first valve job and had to adjust 7 valves one step and 1 valve 2 steps. After it was done I noticed nothing as far as performance, response, cold starting or sound. The bike just simply went on its merry way running like a champ.
|
|
May 13th, 2013, 06:43 AM | #3 |
ninjette.org certified postwhore
Name: Jason
Location: Norfolk, VA
Join Date: Dec 2011 Motorcycle(s): 2012 EX250, 2014 EX300 Posts: A lot.
|
probably shouldn't expect anything, unless the motor was in bad shape.
__________________________________________________
Ethioknight Memorial Fund- Sticker sale http://www.ninjette.org/forums/showthread.php?t=111700 |
|
May 13th, 2013, 06:56 AM | #4 |
ninjette.org member
Name: Martin
Location: Slovenia
Join Date: Mar 2012 Motorcycle(s): 08 Ninja 250R (FI) Posts: 169
|
tnx
bike is maintained as prescripted.. only thing wich is bothering me is that there was no valve addjustement at 12000 km (~8k miles)... at kawasaki service they told me that they stopped checking valves at this mileage, as no bike so far needed adjustement. in a week or so i will hit 24000km (~15k miles) and will need to adjust valves.. sry for lame question, again.. i was just curious |
|
May 13th, 2013, 08:30 AM | #5 |
ninjette.org certified postwhore
Name: Jason
Location: Norfolk, VA
Join Date: Dec 2011 Motorcycle(s): 2012 EX250, 2014 EX300 Posts: A lot.
|
Whens the last time you had your throttles synced?
__________________________________________________
Ethioknight Memorial Fund- Sticker sale http://www.ninjette.org/forums/showthread.php?t=111700 |
|
May 13th, 2013, 08:50 AM | #6 | |
Daily Ninjette rider
Name: Hernan
Location: Florida
Join Date: Mar 2011 Motorcycle(s): 2007 Ninja 250 Posts: A lot.
MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16
|
Quote:
They have more time touching their seats, close to which the coolant flows. The reason for periodic service is that, with wear, the gaps get smaller and the cooling time gets shorter. In extreme cases, the valve remains semi-open, getting burned by the hot gases that leak through. Check these explanations for pre-gen Ninjettes: http://faq.ninja250.org/wiki/Why_do_...be_adjusted%3F http://faq.ninja250.org/wiki/What_ar...ance_ranges%3F
__________________________________________________
Motofool .................................Never ride faster than your guardian angel can fly "Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí |
|
|
May 13th, 2013, 12:52 PM | #7 |
ninjette.org member
Name: Martin
Location: Slovenia
Join Date: Mar 2012 Motorcycle(s): 08 Ninja 250R (FI) Posts: 169
|
|
|
May 13th, 2013, 12:58 PM | #8 |
ninjette.org guru
Name: Bob
Location: Chicago
Join Date: Sep 2012 Motorcycle(s): '06 Ninja 250, 2018 Honda GL1800B Posts: 315
|
Mine was noisier (more valve clatter), idled more smoothly and ran cooler.
|
|
May 13th, 2013, 01:05 PM | #9 | |
ninjette.org certified postwhore
Name: Jason
Location: Norfolk, VA
Join Date: Dec 2011 Motorcycle(s): 2012 EX250, 2014 EX300 Posts: A lot.
|
Quote:
usually fixed by adjusting idles screws, throttle stop, etc. with a pressure differential manifold. the EFI probably doesnt need it done as much as carbs but still worth a look at 15k miles.
__________________________________________________
Ethioknight Memorial Fund- Sticker sale http://www.ninjette.org/forums/showthread.php?t=111700 |
|
|
May 13th, 2013, 01:26 PM | #10 |
ninjette.org member
Name: Martin
Location: Slovenia
Join Date: Mar 2012 Motorcycle(s): 08 Ninja 250R (FI) Posts: 169
|
ok.. will take a look at it too.
but first... learn something about it xD tnx |
|
May 13th, 2013, 02:20 PM | #11 |
ninjette.org sage
Name: Matt
Location: San Diego, CA
Join Date: May 2012 Motorcycle(s): 2007 Triumph Bonneville; 2008 Ninja 250r (trackbike) Posts: 748
|
When I did the valve adjustment, I had to adjust 3 valves. I put everything back and the bike ran fine.
However a week after I did the throttle body sync and they were way off. When I balanced them I acutally had to adjust the idle because when it was balanced it raised the idle. Took it to the track this weekend and it performed well.
__________________________________________________
*CVMA #312*SoCal Trackdays*BigHeadz Racing*Motion Pro*Factory Effex*Leatt Brace* Racetech *Bell * Woodcraft CFM*Vortex*Hotbodies*Surface Sun Systems*Braking*LiveWire Energy*Freegun Underwear |
|
May 13th, 2013, 02:35 PM | #12 |
ninjette.org member
Name: Martin
Location: Slovenia
Join Date: Mar 2012 Motorcycle(s): 08 Ninja 250R (FI) Posts: 169
|
hope Ill mannage how to do it... if not, it will be mechanics problem :P
|
|
May 13th, 2013, 04:33 PM | #13 |
wat
Name: wat
Location: tustin/long beach
Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much.
Blog Entries: 5
MOTM - Oct '12, Feb '14
|
if a valve is more than 3 or 4 sizes out of spec and really making some magical noises, it will perform pretty ******. i've done valves on a bike that was having some issues wouldn't idle right, skipping in the middle, after the service and sync it ran like a new bike. it was the bikes first service, but wasn't done til like 14k
__________________________________________________
|
1 out of 1 members found this post helpful. |
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
milky/yellow oil after a valve job | quanttrom | 2008 - 2012 Ninja 250R Tech Talk | 24 | March 31st, 2012 04:39 PM |
Valve job @ 2300 miles and... | Socal5646 | 1986 - 2007 Ninja 250R Tech Talk | 14 | October 21st, 2011 08:32 AM |
tire valve core - do you change it ? | tac12345 | 2008 - 2012 Ninja 250R Tech Talk | 12 | March 8th, 2011 05:48 PM |
Ideas for saving $ on valve job? Bring in naked & do oil myself? Anything else? | CZroe | 2008 - 2012 Ninja 250R Tech Talk | 10 | December 8th, 2010 08:12 PM |
VERY, loud clicking after valve job | headshrink | 2008 - 2012 Ninja 250R Tech Talk | 50 | June 22nd, 2010 05:11 PM |
|
|