Jump to content

Recommended Posts

  • Member Contributer

Trying to narrow down when the VFR800 went from a 16k mile valve inspection interval to 24k miles.

 

My 2018 VFR800X shows it to be 24k miles, but the Owners Manual from a 2015 model shows it to be 16k miles - pics below. As the engine is the same as the VFR800F (8th Gen), I was wondering if anyone knew when they changed or we could get a few Owners Manuals from the various years 15-18 and see which year it changed.

2018 VFR.jpg

2015 VFR.jpg

  • Like 1
Link to post
Share on other sites
  • Replies 53
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Popular Posts

The main influences to valve wear & thus adjustment are user use i.e. revs & routine maintenance. If you rev the nuts off the engine & rarely change the oil you will wear the cam lobes &am

None of this proves that 24,000 miles is correct, or that 24,000 kms is correct. Local Honda dealers or distributors regurgitating handbooks means Jack Shit. It’s obvious that the handbook proof reade

Hey Magneto think you're correct. We have, Ruseva, Ivanov and now Poptodorov!!! Gotta be a KGB infiltration. 😆 Comrades, keep a look out for this years release of the VFRSKI  

Posted Images

  • Member Contributer

 

 

My 2015 VFR800FD manual says 16K.

 

Clearly, Honda has updated the recommendation.

16K MILES seems way too low...
Case Closed! 😉 

image.thumb.png.cb880d604d1a143bdcafc384cc2c03f5.png
 

 

 

Link to post
Share on other sites
  • Member Contributer

Even more confused. My local Honda dealer is still saying 24,000 km or 16k miles. Could be a printer cockup!

 

Where is Mr Honda when you need him?

Link to post
Share on other sites
  • Member Contributer

If its not a printing error it could be down to the expected use regime for the X verses the sports versions. Less likely to be thrashed hard much of the time ! 

Link to post
Share on other sites
  • Member Contributer
9 hours ago, Skids said:

Trying to narrow down when the VFR800 went from a 16k mile valve inspection interval to 24k miles.

 

My 2018 VFR800X shows it to be 24k miles, but the Owners Manual from a 2015 model shows it to be 16k miles - pics below. As the engine is the same as the VFR800F (8th Gen), I was wondering if anyone knew when they changed or we could get a few Owners Manuals from the various years 15-18 and see which year it changed.

2018 VFR.jpg

2015 VFR.jpg

 

The manuals changed in 2016 apparently. 

Link to post
Share on other sites
  • Member Contributer
3 hours ago, VFR78 said:

Even more confused. My local Honda dealer is still saying 24,000 km or 16k miles. Could be a printer cockup!

 

Where is Mr Honda when you need him?

Highly unlikely there is a typo in the manual... Mr Honda IS the manual...

Link to post
Share on other sites
  • Member Contributer

Seems pretty strange that Gen 6 was 24,000 kms all the way and Gen 8 was 24,000 for at least 4 years of it’s life. Why would it change. I have tried to get a handbook from the Japanese Honda site, ha ha. Not so easy!

 

Link to post
Share on other sites
  • Member Contributer

Don’t get me wrong, I’m not pushing any barrow. In fact the longer interval would suit this retirees bank balance much better. Unfortunately, I’m probably the only anal Viffer rider who’s interested.

Link to post
Share on other sites
  • Member Contributer

well there have been errors in manual before. I still suspect it's units conversion issue.

 

I recently filled out paperwork to ship bike from Canada to California. Said it weighed 210-kg with empty tank on numerous forms. I got back invoice saying 210-lbs !!! Ok, if they just want to charge to ship 210-lbs, that's fine by me!

 

Has anyone being using 36k-mile schedule? Has it working out OK between intervals?

Link to post
Share on other sites
  • 1 month later...
  • Member Contributer
On 1/3/2021 at 8:33 PM, DannoXYZ said:

well there have been errors in manual before. I still suspect it's units conversion issue.

 

I recently filled out paperwork to ship bike from Canada to California. Said it weighed 210-kg with empty tank on numerous forms. I got back invoice saying 210-lbs !!! Ok, if they just want to charge to ship 210-lbs, that's fine by me!

 

Has anyone being using 36k-mile schedule? Has it working out OK between intervals?

Taken from VFRWORLD..

"Dear Mr. C,

Thank you for contacting Honda UK.

We would like to let you know that we have had a look and can confirm that when it comes to the 2014 VFR800 what we were able to locate on our system is that the valve inspection service has to be done at 24,000 miles.

For any additional information we can recommend discussing things further with your Honda authorized dealership, you can locate your closest Honda dealership here:


https://www.honda.co.uk/motorcycles/dealer-search.html

Thank you for contacting Honda. If we can be of any further assistance, please do not hesitate to contact us.


Kind Regards,

Alexander Ivanov

Honda Customer Service
"

Link to post
Share on other sites
  • Member Contributer

Well its a bit of a disgrace that Honda have not released a Technical Service Bulletin to advise all service agents that the valve inspection interval has changed, especially if this goes back to the 2014 model.

There does appear to be plenty of good evidence for extending the interval. But why Honda hasn't made this common knowledge to there service agents is strange.

Bit like VFR78, the mystery continues!

  • Like 1
Link to post
Share on other sites
  • Member Contributer

My local Honda dealer claims it is still 16k miles.

Link to post
Share on other sites
  • Member Contributer

My local dealer more or less refused to check the valves at 16k miles.

I had an independent shop check and adjust the valves at 38k miles and only two valves needed to be adjusted. YMMV.

  • Like 1
Link to post
Share on other sites
  • Member Contributer

 Lifted from VFRworld.

 

 

However I decided to go one better and emailed Honda USA, and Honda UK if indeed the service interval is now 24000 miles. Honda UK responded to me inside of 24 hours, and I copy and paste their response:

Dear Mr. C,

Thank you for contacting Honda UK.

We would like to let you know that we have had a look and can confirm that when it comes to the 2014 VFR800 what we were able to locate on our system is that the valve inspection service has to be done at 24,000 miles.

For any additional information we can recommend discussing things further with your Honda authorized dealership, you can locate your closest Honda dealership here:


https://www.honda.co.uk/motorcycles/dealer-search.html

Thank you for contacting Honda. If we can be of any further assistance, please do not hesitate to contact us.


Kind Regards,

Alexander Ivanov

Honda Customer Service
 

  • Like 1
Link to post
Share on other sites
  • Member Contributer

Interesting feedback.  So it makes one wonder what, if anything Honda did differently on the 8th gen VTEC motor to extend the valve check interval, or if on 6th gens it was spec'd at an overly conservative level.  Given that so many owners have skipped over the valve checks with no consequence, I'm guessing it's the latter.  Thanks for doing this. 

Link to post
Share on other sites
  • Member Contributer
4 hours ago, Cogswell said:

Interesting feedback.  So it makes one wonder what, if anything Honda did differently on the 8th gen VTEC motor to extend the valve check interval, or if on 6th gens it was spec'd at an overly conservative level.  Given that so many owners have skipped over the valve checks with no consequence, I'm guessing it's the latter.  Thanks for doing this. 

That would be an interesting point. Are valve measurements the same for all gens? 
 

Could advances in fuel and oil technology be the answer? After all, modern oils are so good compared to yesteryear, although reductions in Zinc (for emissions) and ethanol in fuel might suggest otherwise. 
 

Valves generally tighten up as valve face/seat wears. Are the valves/heads on the later models made of harder materials? Are part numbers different? 
 

Dirt coming through air filter can form an abrasive and cause valve wear. Could it be due to revised air box design on newer models (flapper deactivated and plugged)? I doubt it but...

 

Valve clearances can increase with coke buildup. Could it be this buildup is counteracting valve wear so gaps remain stable? That would require later models to encourage more buildup than older ones. Again, I doubt it. 
 

Just spitballing...

Link to post
Share on other sites

UThis is mostly a gimmick intended to satisfy liabilities and scenarios that may not exists. For motorcycles it depends on many factors, like where you live. Many live below 5000 rpm some live at redline. What is the average? Feedback is a normal way of adjusting arbitrary set preventive service intervals, looks like Honda is using it. Another point, large portion or valves deemed needing adjustment is due to measurement errors since method is crude and rely on expirience to evaluate.

In car world, like Toyota for example, routine valve lash inspections are practically gone. 

  • Like 1
Link to post
Share on other sites
  • Member Contributer

It would appear that between the 6th and 8th Gen, honda has updated their cam shaft part numbers. This could partially be a reason why

Screenshot_20210227-074134.jpg

Screenshot_20210227-074358.jpg

Link to post
Share on other sites
  • Member Contributer

Yes, however, just shows that they have made updates to the internals. What those updates exactly are I don't know and I'm sure it's more than just the cams. But, it is possible that those updates helped with the keeping the clearance within spec longer 

Link to post
Share on other sites
  • Member Contributer
12 hours ago, Magneto said:

I would love to see Honda Engineering evals  that lead to setting of the inspection periods. That would be fun...

Taking part in those discussions on industrial consumer products was entertaining, followed by horribly boring statistical calculations padded with safety margins.

 

So I can only imagine that the initial testing efforts for larger products like motorcycles would be awesome! Minus the math

Link to post
Share on other sites
  • Member Contributer
15 hours ago, Magneto said:

In car world, like Toyota for example, routine valve lash inspections are practically gone. 

 

At 240,000 miles I replaced the timing belt my Camry's 5S-FE.  I bought the car with with ~100,000 miles on it and I doubt the valves had ever been checked by the P.O. I had to remove the cam cover to service a leaky spark plug tube so decided to check valve clearances while I was in there.  All were within spec.  Regardless of how long I keep this car, I'll never bother looking at them again. 

  • Like 1
Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...

Important Information

By using this site, you agree to our Privacy Policy.