valve adjustment problem

surlistyc · October 23rd, 2012, 09:05 PM

OK, here it is. I'm having problems adjusting my valves. Particularly the #1 cylinder intake valves. At TDC, with the adjustment screw, adjusted all the way out, where it should give me more than enough room to insert the feeler gauges, it is still on the tight side. As I was saying, The screw is backed all the way out. All of the other valves are within tolerance as they should, I don't think this one is too far out, but it is still too tight to get the feeler gauge in.
My concern is, that it's so tight it's not allowing the valve to seat, seeing as I am having low compression problems.
I am aware the problem with low compression could be in the piston rings and not the valves, but even still the problem with the valve needs to be fixed.

I guess, I am just wondering if anyone else has had/heard of this problem with the valves, and if you possibly know a way to fix it.

Motofool · October 24th, 2012, 05:41 AM

May be possible that that valve seat has been already repaired and leaped.
May be just that rocker arm that is deformed.
May be only that you are using the wrong TDC and the lobe of the cam is too close to the measured gap.

Check this post and video:

http://www.ninjette.org/forums/showp...&postcount=174

Lychee · October 24th, 2012, 10:28 AM

Maybe the rocker is stuck to the valve. Hit it with a wrench?

Link to original page on YouTube.

alex.s · October 24th, 2012, 10:30 AM

try oiling the feeler gauges... if things are too dry even if it fits it can get stuck. also make sure your feeler gauges are true to size.

October 24th, 2012, 05:41 AM	#2
Motofool 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	May be possible that that valve seat has been already repaired and leaped. May be just that rocker arm that is deformed. May be only that you are using the wrong TDC and the lobe of the cam is too close to the measured gap. Check this post and video: http://www.ninjette.org/forums/showp...&postcount=174 __________________________________________________ *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

October 24th, 2012, 10:30 AM	#4
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	try oiling the feeler gauges... if things are too dry even if it fits it can get stuck. also make sure your feeler gauges are true to size. __________________________________________________

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October 23rd, 2012, 09:05 PM	#1
surlistyc ninjette.org member Name: surlistyc Location: florida Join Date: Jul 2012 Motorcycle(s): 2003 kawasaki ex250 Posts: 42	valve adjustment problem OK, here it is. I'm having problems adjusting my valves. Particularly the #1 cylinder intake valves. At TDC, with the adjustment screw, adjusted all the way out, where it should give me more than enough room to insert the feeler gauges, it is still on the tight side. As I was saying, The screw is backed all the way out. All of the other valves are within tolerance as they should, I don't think this one is too far out, but it is still too tight to get the feeler gauge in. My concern is, that it's so tight it's not allowing the valve to seat, seeing as I am having low compression problems. I am aware the problem with low compression could be in the piston rings and not the valves, but even still the problem with the valve needs to be fixed. I guess, I am just wondering if anyone else has had/heard of this problem with the valves, and if you possibly know a way to fix it.

October 24th, 2012, 10:28 AM	#3
Lychee sail away Name: Jon Location: San Jose Join Date: Jul 2012 Motorcycle(s): gixxer (sold), ninjette (upgrade!) Posts: 964 Blog Entries: 8	Maybe the rocker is stuck to the valve. Hit it with a wrench? Link to original page on YouTube.