Intake valve clearance 04 Ninja 250

shaggy · June 7th, 2014, 01:50 PM

I have been able to adjust 7 out of the 8 valves on my 04 Ninja 250. The 8th is the 1st intake on the right side (timing chain side). No matter what I do I can not get any clearance between the lifter and the cam lobe.
The valve does not seem to be bent and moves freely when the engine is rotated.
Any ideas?
Thanks!

alex.s · June 7th, 2014, 02:06 PM

EMSRacer07 · June 7th, 2014, 03:15 PM

Quote:

Originally Posted by shaggy

I have been able to adjust 7 out of the 8 valves on my 04 Ninja 250. The 8th is the 1st intake on the right side (timing chain side). No matter what I do I can not get any clearance between the lifter and the cam lobe.
The valve does not seem to be bent and moves freely when the engine is rotated.
Any ideas?
Thanks!

sometimes the valves run out of clearance, usually its the earlier models and high mileage engines. I think its suggested to check the rocker arm for wear. Someone can chime in. But when my 1990 engine did this I changed out the rocker arms bc they had alot of wear on them, 5 of my valves had no more adjustablity left

Ninjinsky · June 7th, 2014, 03:41 PM

Check carefully that the rocker is seated properly with one "ear" each side of the valve head.
I just made that mistake and it was very expensive £44 for a new rocker,

shaggy · June 7th, 2014, 05:31 PM

Quote:

Originally Posted by EMSRacer07

sometimes the valves run out of clearance, usually its the earlier models and high mileage engines. I think its suggested to check the rocker arm for wear. Someone can chime in. But when my 1990 engine did this I changed out the rocker arms bc they had alot of wear on them, 5 of my valves had no more adjustablity left

I suspect this is the cause. I will change the rocker and see......

Thanks!

shaggy · June 7th, 2014, 05:33 PM

Quote:

Originally Posted by Ninjinsky

Check carefully that the rocker is seated properly with one "ear" each side of the valve head.
I just made that mistake and it was very expensive £44 for a new rocker,

I did check the rocker seating on the valve/spring collar. All was as it should be.

Good thought! Thanks.....

Motofool · June 7th, 2014, 05:54 PM

Quote:

Originally Posted by shaggy

I did check the rocker seating on the valve/spring collar. All was as it should be.........

Please, be aware of this:
http://n4mwd.blogspot.com/2013/06/ov...ts-during.html

June 7th, 2014, 01:50 PM	#1
shaggy ninjette.org member Name: shaggy Location: Barnumville, Vt Join Date: May 2012 Motorcycle(s): 04 KTM 200EXC, 05 Yamaha XT225, 09 Ninja 250, 94 Ninja 250, 87 DR200 Posts: 21	Intake valve clearance 04 Ninja 250 I have been able to adjust 7 out of the 8 valves on my 04 Ninja 250. The 8th is the 1st intake on the right side (timing chain side). No matter what I do I can not get any clearance between the lifter and the cam lobe. The valve does not seem to be bent and moves freely when the engine is rotated. Any ideas? Thanks!

June 7th, 2014, 02:06 PM	#2
alex.s 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	__________________________________________________

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June 7th, 2014, 03:41 PM	#4
Ninjinsky ninjette.org certified postwhore Name: Paul Location: UK Join Date: Apr 2014 Motorcycle(s): Ninja 250, Yamaha RS200 (classic) Posts: A lot.	Check carefully that the rocker is seated properly with one "ear" each side of the valve head. I just made that mistake and it was very expensive £44 for a new rocker,