Author Topic: Valves  (Read 11388 times)

Papa Bear

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Re: Valves
« Reply #30 on: June 30, 2016, 06:51:15 PM »
It sounds like you are getting to the bottom of this dilemma.

Looking forward to what Taiwan says.

Cam, do you know what's up with this mess ??
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campurvis

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Re: Valves
« Reply #31 on: June 30, 2016, 11:43:48 PM »
Not a clue Papa Bear, but .05mm intake  = .002” and .15mm exhaust = .006”.  If you go way back to the old CB/CL 125cc Honda motor that SYM originally copied, the specs are often listed as .05mm/.002” for both intake and exhaust.

I remember back in the days of the stone axe, a Honda dealer where I lived in Canada told me that, while tight clearances were good for Japan, where most rides were short distance commutes and people didn’t like the sound of mild valve clatter, a lot of those same small-bore bikes were ridden on highways in Canada (longer distances, higher speeds) and he always set the clearances higher (eg. intake 003”; exhaust .003”).  Part of the reason for this was also that many small-bore Honda tappet adjusters at that time were prone to tightening all by themselves over a period of time.

The Wolf, in Taiwan, is used predominantly for low to medium speed commutes—and nothing under 250cc is even allowed on major highways here.  The service manual probably reflects Asian riding styles, because manuals are usually cut and pasted over the years. Either that or valve trains have improved so much that a setting of .05mm/.002” is now perfectly acceptable for both valves, even with sustained N. American style, highway use.  Setting the exhaust at .15mm/.006” though sounds very excessive to me.  Its probably a typographical error.
« Last Edit: July 01, 2016, 04:27:14 AM by campurvis »
Hsinchu City, Taiwan

redridinghood

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Re: Valves
« Reply #32 on: July 01, 2016, 05:43:40 AM »
http://oldmanhonda.com/MC/Datatable.html

Lots of old Honda's to check out the valve clearance specs on.

The .15mm looks like the outlier and maybe an out-and-out liar.  :P

« Last Edit: July 01, 2016, 05:53:31 AM by redridinghood »

Papa Bear

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Re: Valves
« Reply #33 on: July 01, 2016, 08:04:20 AM »
You may well be right....
Lying is not the right term - sloppy workmanship is likely closer to the truth.

It is quite upsetting to find conflicting/incorrect information in a company's service information.

It says A LOT about "attention to detail" and quality control.

The customer should NOT have to sort through un/mis/ill information to find a simple (correct) valve clearance value on a user forum on-line.

I wonder if Alliance or SYM corporate monitor user/owner forums ??  They SHOULD !! 
Most of the automotive forums have company members who ask/answer questions to clear up problems.

Looking forward to Taiwan's response.  >:(
« Last Edit: July 01, 2016, 09:34:15 AM by Papa Bear »
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BeebBobE

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Re: Valves
« Reply #34 on: July 01, 2016, 09:07:36 AM »
....sloppy workmanship is likely closer to the truth.

It is quite upsetting to find conflicting/incorrect information in a companies service information.

It says A LOT about "attention to detail" and quality control.

The customer should NOT have to sort through un/mis/ill information to find a simple (correct) valve clearance value on a user forum on-line.

I wonder if Alliance or SYM corporate monitor user/owner forums ??  They SHOULD !! 
Most of the automotive forums have company members who ask/answer questions to clear up problems.

Looking forward to Taiwan's response.  >:(
This is exactly what i have been saying in not supplying the consumer proper info through a proper service manual. You are left to your own as a consumer. All could be cleared up simply by providing the consumer what they need to service and maintain their purchased product. It is honestly quite sad and you would think something would be done to make right this kind of situation. Do they not care if they sell product?
Ride like a Klingon....

BlackFlag

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Re: Valves
« Reply #35 on: July 01, 2016, 03:39:12 PM »
So, here's the verdict.  Sym factory reports the sticker is right and their service manual is wrong.  Somehow nobody caught this until I started asking questions, apparently they are issuing a correction.

Correct Clearances
Intake: 0.05mm Exhaust: 0.15mm

« Last Edit: July 01, 2016, 03:41:43 PM by BlackFlag »

Papa Bear

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Re: Valves
« Reply #36 on: July 01, 2016, 04:00:33 PM »
Thank you for the report. Much appreciated !  :)
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campurvis

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Re: Valves
« Reply #37 on: July 01, 2016, 09:45:00 PM »
Well, now we know. Good work Black Flag.
Hsinchu City, Taiwan

BlackFlag

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Re: Valves
« Reply #38 on: July 02, 2016, 11:48:56 AM »
Thanks, now I'm wondering if I should be concerned about the two hard rides I did with the exhaust valve set to .05?

Papa Bear

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Re: Valves
« Reply #39 on: July 02, 2016, 12:58:31 PM »
For better or for worse I bet there are quite a few folks riding with tight exhaust settings.

I would get it rectified ASAP and motor on .....  8)   You're good.

If you do have a warranty claim in the future you shouldn't have a problem getting it fixed.  ;)

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Cisium

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Re: Valves
« Reply #40 on: June 03, 2021, 11:52:06 AM »
How does one remove the cylinder head side cover?
The manual says to remove it in order to adjust the valves, and seems to indicate a special wrench is required, but no one in this thread has mentioned such a wrench.
I removed the 2 screws but no amount of prying or twisting will budge it.
I.N.S.H.O.

GrumpyUnk

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Re: Valves
« Reply #41 on: June 05, 2021, 05:57:02 PM »
 There is a link on-site referencing the Honda manual for the CG125.  The Wolf is based on that, and the Honda service manual should have instructions.
tom
It's not how hard you work, it's how much you get done.  Vertical and above ground, daily.

Papa Bear

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Re: Valves
« Reply #42 on: June 06, 2021, 12:45:29 PM »
I thought the Wolf was more CB 125 than CG 125.
Maybe Cam can clear this up for us ....
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GrumpyUnk

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Re: Valves
« Reply #43 on: June 11, 2021, 05:41:46 PM »
 Papa You are correct.  Brain fade now and again with vintage.  The CB is the OHC design, which is what the Wolf has.  Duh.  CG is the 'rocker arm engine' that is close in design, but not as rev-happy as the CB.  The CSC SG250 San Gabriel has a CG250, and it seems more torque happy than the CB(yeah, I know it has more displacement)
tom
It's not how hard you work, it's how much you get done.  Vertical and above ground, daily.

Papa Bear

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Re: Valves
« Reply #44 on: June 11, 2021, 08:00:26 PM »
"Brain fade now and again with vintage."

Tell me about it - I turned 77 a couple of weeks ago  8)
Get your motor runnin' .. get out on the highway.

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