Valve Clearance Check #2 and #3

jbfla · 03-21-2016, 08:15 PM

The first check for valve tappet clearances was at 850 miles:

http://www.chinariders.net/showthread.php?t=15650

The valve clearances were at the same .003" (3 thousandths inch) as CSC had set them during their "set up". So that's where I left them.

2,650 miles later, at 3,500 miles, I checked the clearances once more.

This time was different:

Intakes: .005"
Exhaust: .001"

My first thought was the piston was at top dead center on the wrong stroke.

So I checked:

Looked to be in the correct position.

Readjusted the clearances to .003" as recommended by CSC.

Put the bike back together, and ran the engine at idle for a while. All seemed fine, except for the tapping noise.

I had been noticing a tapping noise from the engine recently, which was becoming louder.

After a couple of emails to CSC, it was suggested that I recheck the valve clearances.

So for the second time in 3 days, the bike comes back apart....

The valve clearances were right where I had left them, .003"
....and the .004" would not fit.

You all know how much fun checking the valve clearances is ....

More to follow. Hopefully with some favorable news.

Oh, and BTW when you have a chance, check the battery terminals on your RX3. There was a significant amount of corrosion on both terminals:

jb

03-21-2016, 08:15 PM	#1
jbfla Join Date: Oct 2015 Location: FL, GA, NC Posts: 771	Valve Clearance Check #2 and #3 The first check for valve tappet clearances was at 850 miles: http://www.chinariders.net/showthread.php?t=15650 The valve clearances were at the same .003" (3 thousandths inch) as CSC had set them during their "set up". So that's where I left them. 2,650 miles later, at 3,500 miles, I checked the clearances once more. This time was different: Intakes: .005" Exhaust: .001" My first thought was the piston was at top dead center on the wrong stroke. So I checked: Looked to be in the correct position. Readjusted the clearances to .003" as recommended by CSC. Put the bike back together, and ran the engine at idle for a while. All seemed fine, except for the tapping noise. I had been noticing a tapping noise from the engine recently, which was becoming louder. After a couple of emails to CSC, it was suggested that I recheck the valve clearances. So for the second time in 3 days, the bike comes back apart.... The valve clearances were right where I had left them, .003" ....and the .004" would not fit. You all know how much fun checking the valve clearances is .... More to follow. Hopefully with some favorable news. Oh, and BTW when you have a chance, check the battery terminals on your RX3. There was a significant amount of corrosion on both terminals: jb __________________ 2016 Honda CB500F......2017 Triumph Street Twin 2014 XT 250........
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