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Offline tizzy23

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2000 km valve re-check
« on: August 21, 2013, 11:19:52 PM »
When I got my bike back from the 1000 km service all my intake valves were spot on at 0.006 in and all exhaust valves were listed 'in spec' at 0.095. I told them if spec is 0.011 with a tolerance of 0.001 in then they are all out. Anyway, at 2000 km I finally got the bike back in for a re-check. One of the exhausts was now wide open, out by 11 thousands. Not at all what I was expecting but I'm glad I made them re-check.
« Last Edit: August 27, 2013, 01:06:17 AM by tizzy23 »

Offline tizzy23

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Re: 2000 km valve re-check
« Reply #1 on: August 21, 2013, 11:39:29 PM »
For the record I gave the bike a pretty spirited, moderately hard break-in. But I didn't start running redlines, going for top speeds, or bouncing off the rev limiter until after the first service. Something to think about!

Offline Cam

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Re: 2000 km valve re-check
« Reply #2 on: August 22, 2013, 12:00:11 PM »
Hmmmm hopefully not a sign of things to come...  :006:

Thanks for the heads up on this one

Offline Cam

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Re: 2000 km valve re-check
« Reply #3 on: August 29, 2013, 10:08:54 PM »
Seeing the posts in the First Service thread it is sounding like the engine is a bit fragile really.  Is it normal for Honda engines to be out of spec within a couple of thousand kms or less then? 

Not having owned a Honda before have no previous experience with them.  Thought their build quality was supposed to be fairly good.  Never heard of issues like this with Kawasaki, Triumph etc which I have owned.

Offline tizzy23

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Re: 2000 km valve re-check
« Reply #4 on: August 29, 2013, 10:17:25 PM »
I sold my 1983 cb450sc nighthawk to get my new 500x. That old Honda ran like a champ after 30 years and I couldn't have been happier with it. I wanted something new though, and the X fit the bill. I absolutely love it, but, yeah, all the valve issues worry me. Hopefully it's just a break in thing, and the old adage 'they don't build them like they used to' doesn't apply here.

Offline donqx

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Re: 2000 km valve re-check
« Reply #5 on: August 30, 2013, 08:59:50 AM »
Hi tiz,

I'm also a bit concerned about this.  (see my posts at https://www.cb500x.com/index.php/topic,125.0.html)

I've started making contact with Honda about this, am quite willing to make a big deal of it if it should turn out to be more than just a minor issue.

Keep us posted on how yours goes!

:-)  dq.

Offline Cam

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Re: 2000 km valve re-check
« Reply #6 on: August 30, 2013, 12:50:13 PM »
Started looking for a bit more info on this and the early valve check shedule.  No mention of whether an owner should be liable for an engine out of spec so early in it's life, that's the question I am interested in.  I wonder if under Australian Consumer Law for example this would be considered a fair an reasonable expectation for a new bike?

http://www.motorcyclenews.com/MCN/News/newsresults/New-bikes/2013/July/jul0413-honda-cb500-valve-clearance-shock/

Offline Hoverdoc

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Re: 2000 km valve re-check
« Reply #7 on: November 06, 2013, 10:08:05 PM »
Just had my first service (600 mile) however I have 2800 miles on the odometer. My local Honda dealer charged me $157 U.S. for just the valve clearance check at an hour and 45 minutes of labor. Good news is all valve clearances were in spec. The mechanic suggested that it made more sense to do the valve check a bit after the break in period because that way you are past the "babying it" phase and you have been riding like you normally would for some time.

Offline quickstop

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Re: 2000 km valve re-check
« Reply #8 on: January 26, 2014, 01:06:48 AM »
The honda reps answer is the best non-answer I've seen. My vstrom uses shims for the valves and doesn't call for it's first check until 15,000 miles! and then every 15,000 after that. So what's the real issue?

Offline jsonder

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Re: 2000 km valve re-check
« Reply #9 on: January 26, 2014, 05:22:31 PM »
Let's face it, early adopters take it in the shorts.

Honda wasn't comfortable with the shim accuracy in the early days running the engine assembly line.  So they put the 600 mile/1000 km check in the maintenance schedule.  They now have the bugs out of the assembly and they raised the price of the bike 5% in my country while removing the initial valve check.  Cost is about the same if you don't have to do the valve clearance inspection (VCI).  As I do routine stuff like that for myself, I'm a bit unhappy with the price increase and I plan to do a VCI sometime after the normal break in period (~1500 miles). 

My NX250 calls for a VCI every 24,000 miles; I check it every 8,000 miles.  It has gone 19K miles since I made the last adjustment and currently has 3 shims at the loosest clearance and one in the middle of the clearance range.  I bought the bike used and did the initial inspection when it seemed a tad hard to start.  All 4 shims were replaced, and one had to go two sizes smaller (the tight intake valve).  Since then I've been cautious and consider it a mid-winter chore to do a VCI.

But, I'm old and retired and have time on my hands, YMMV.

John  '14CB500XA (Daily Rider),  '09CRF230L (L'il Red Piglet), '89NX250 (sold)
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