Valve adjustment exhaust @ .006

[Migolito]

Just used Spydie's EXCELLENT video to adjust my valves. It seems the more I read, the more folks are finding there exhaust valves a wee bit tight. Intake was dead on, and exhaust was .006.

 

[AZ7000']

My manual shows .006 as in spec...

 

[m in sc]

it is. hell i've seen guys run em at .005 and .005. I wouldn't but i've seen it done with no issues.

 

[Migolito]

I guess im just wondering why is .006, instead of .007. I get that it meets spec.

 

[m in sc]

Because it doesn't matter and its a cheap mass produced motor.

 

[Fun4me]

Getting close to 4,000 miles on my Little Red Donkey so decided to adjust the valves for the first time. Watched several helpful videos on this forum and on You Tube to prepare. As others have experienced, intake was spot on, and exhaust was .006. Although still within specs, a quick adjustment to get it to .007 was a simple and assuring task. Went ahead and did the 30 second adjustment to the clutch while I was working in the vicinity and I'm back on the trail/road.

 

[Farmer Mike]

Valve Clearances the same on the JA65? Assuming someone here knows.

 

[dmonkey]

I believe they're different, as they are on the other euro5 mini motos. @bryanchurch06 has a 2023 service manual and might be nice enough to share what it calls for.

 

[bryanchurch06]

Here's the page from the manual, hope it helps you out.

 

[NMCoyote]

Interesting, there is a difference between the two models. The .006 is out of spec on the 23. I haven’t done mine yet, but I did buy the cool little valve adjustment tool! I only have about 1500 on it so far. I’ll probably change the oil and check valves and clutch at 2000 and get it ready for a new season of hard riding.

 

[Farmer Mike]

Here's the page from the manual, hope it helps you out.

Yes, helps me out greatly. Thanks. Where did you get the manual?

 

[Farmer Mike]

Interesting, there is a difference between the two models. The .006 is out of spec on the 23. I haven’t done mine yet, but I did buy the cool little valve adjustment tool! I only have about 1500 on it so far. I’ll probably change the oil and check valves and clutch at 2000 and get it ready for a new season of hard riding.

Which tool did you settle on, and did you just randomly pick something or did you have a specific reason for the one you picked? I plan to buy one as well, fairly soon.

 

[bryanchurch06]

Yes, helps me out greatly. Thanks. Where did you get the manual?

There is a link in the back of the owners manual or just Google it. Let me know if you need other information

 

[dmonkey]

2023 Trail125 Service Manual English, Paper, 61K2E50

2023-2024 Trail125 Service Manual

Honda Genuine Service Manuals lead the industry with clear, comprehensive presentation of motorcycle service and repair procedures. Each Service Manual is model specific and contains easy to read text sections supported by top quality photography and illustrations. A comprehensive General...

www.helminc.com

These are the tool part numbers Honda list for the valve tappet adjustment wrenches:
Lock nut wrench, 8 x 9mm : 07708-0030100
Valve adjusting wrench: 07708-0030400 or 07908-KE90200

You can find alternative ones that can be cheaper and easier to work with. Just make sure they're for a 9mm lock nut and a 3mm square tappet screw.
https://www.motionpro.com/product/08-0733 - I've used this one on my 2021 CT125
https://www.amazon.com/dp/B09PY99XB8 - @SneakyDingo has used this one
https://www.ebay.com/itm/183571992541
https://japan.webike.net/products/23948543.html

 

[Farmer Mike]

There is a link in the back of the owners manual or just Google it. Let me know if you need other informati

2023 Trail125 Service Manual English, Paper, 61K2E50

2023-2024 Trail125 Service Manual

Honda Genuine Service Manuals lead the industry with clear, comprehensive presentation of motorcycle service and repair procedures. Each Service Manual is model specific and contains easy to read text sections supported by top quality photography and illustrations. A comprehensive General...

www.helminc.com

These are the tool part numbers Honda list for the valve tappet adjustment wrenches:
Lock nut wrench, 8 x 9mm : 07708-0030100
Valve adjusting wrench: 07708-0030400 or 07908-KE90200

You can find alternative ones that can be cheaper and easier to work with. Just make sure they're for a 9mm lock nut and a 3mm square tappet screw.
https://www.motionpro.com/product/08-0733 - I've used this one on my 2021 CT125
https://www.amazon.com/dp/B09PY99XB8 - @SneakyDingo has used this one
https://www.ebay.com/itm/183571992541
https://japan.webike.net/products/23948543.html

I was aware of the helm people... but it's crazy what they want for shipping. I may look at one of the other alternatives.