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I wanted to post a copy of all the manuals we can get our hands on. For now, here is a direct link to the Honda MSX125 (UK) Owners Manual.. others will follow as we get them.

Honda MSX125 Owners Manual (Eng) - PDF.

Thanks to Dezzie for the tip!
 

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I read through this and it answered a few of my questions. I am hoping to find a Service manual on line too.
 

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A little more info I obtained - Intake Clearance = 0.1mm +-0.02mm @ 2.5k
Exhaust Clearance = 0.17mm+-0.02mm @ 2.5k
Oil = 10w30 @ 2.5k
Oil strainer & filter = Clean @ 7.5k
Spark plug = NGK: cpr6ea-9, DENSO: u20epr9. Gap 0.8-0.9mm, Torque 16Nm/12f.tlb. This was obtained of a guy from his local dealer, apparently service manual is not available on p.d.f as yet and info only available on Hondas database, so dealer has kindly printed this info off and has told him if he wants more he will print some off soon for him, al keep ya updated as and when I get more info!
 

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Thank you. This is good info. If I cant get a service manual I will print this out and keep it. Hey El....maybe we need a sticky with this type of info?
 

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Thank you. I have some weight concern issues and speed concerns so this has helped a lot. I hope the US model wont change significantly with weight capacity.

- Dukelheit :D
 

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Note, regarding the fuel octane requirements that are stated in the manual, linked to above: if you're in the USA, keep in mind that while most of the world uses the RON number, the USA uses an average of (RON+MON)/2, so a RON of 91 is equivalent to a USA octane rating of 87.
 

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Im already obsessed with this bike. Im going to try to memorize the specs and service info while I wait for mi e to get here. I have challenged my kids to think up questions to ask me about it. All in good fun of course.
 

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great information to have. i normally prefer electronic copies better than paperback. (although this may or may not be identical to the manual we receive from Honda of North America.
 

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Strange that the manual doesn't mention an oil filter where it talks about changing oil. Elsewhere, K&N says the 303 filter fits it which would make the filter very common and the same one used for Ninja 300 and Ninja 650 among many other bikes and obtainable in many different brands. However, I cannot find an oil filter on any of the Grom diagrams. I did have a 50cc scooter once that had no oil filter, but surely they put one on the Grom, right?
 

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Strange that the manual doesn't mention an oil filter where it talks about changing oil. Elsewhere, K&N says the 303 filter fits it which would make the filter very common and the same one used for Ninja 300 and Ninja 650 among many other bikes and obtainable in many different brands. However, I cannot find an oil filter on any of the Grom diagrams. I did have a 50cc scooter once that had no oil filter, but surely they put one on the Grom, right?
Nope, doesn't need it. Honda has been building this similar design for oh what 60 years now? They run forever with pretty minimal maint. About every 2500-3000 miles check the valves, change the plug and the oil. I have owned a BUNCH of small Hondas over the years with no oil filters (50s, 70s, 80s, 100s, and my current 150). Never ever ever had a single problem with any of them.

50cc-100cc Cubs in "third world" countries have been on the roads for decades with zero problems.
 

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I notice there is a valve inspection/adjustment at 600 miles (early), 2500, then every 2500 mi. after that. I guess it won't be so difficult to check valves though. My Honda Dealer will offer a Service Contract, but they haven't priced it yet. For my Gixxer 1000 it was $1550 and included all SCHEDULED maintenance plus 3 free anytime oil changes, plus some discounts on tires, parts, batteries. The contract lasts 3 years. I have put 9500 mi. on that bike in 6 months. The valves are a huge deal on the Gixxer just to get to them and that apt due at 14000 mi. would normally cost over $800 if paid for separately. I will just have to see what the dealer plans to charge for the contract for a Grom before I decide. I kind of like to fiddle with bikes, but if the price is right, I'll let the mechanics handle it. Anyone else looking into a maintenance contract? Note these are different than extended warranties and are handled by the dealer, not Honda. I figure Japanese bikes will hold up for years without needing an extended warranty. Never had a problem yet with one that would have benefited by an extended warranty anyway. I don't see screw holes for spools in the swingarm so I guess you'll just use a swingarm rear stand. Doesn't look like my center stand is going to fit it since the exhaust runs along the bottom so that's something else to deal with if I want to change a rear tire, adjust chains, etc. The bike is so small. I wonder if my front stand will even fit the triple tree without bumping into headlights, etc. I really need to see one of these bikes in person.
 

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Everything about these motors is easy. I'd say cleaning the oil spinner will be the most in depth/difficult to get to. That's why most bikes don't ever have it done. (And its not even that hard. Take off the side cover and a couple screws and clean it out)
 

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Im looking forward to working on my Grom. The last time I took a bike to the dealer was in 1984 and that was because I needed a heli-coil put into the frame and it was cheaper for the dealer to do it.

Sent from my DROIDX using HondaGrom.net mobile app
 

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I notice there is a valve inspection/adjustment at 600 miles (early), 2500, then every 2500 mi. after that. I guess it won't be so difficult to check valves though. My Honda Dealer will offer a Service Contract, but they haven't priced it yet. For my Gixxer 1000 it was $1550 and included all SCHEDULED maintenance plus 3 free anytime oil changes, plus some discounts on tires, parts, batteries. The contract lasts 3 years. I have put 9500 mi. on that bike in 6 months. The valves are a huge deal on the Gixxer just to get to them and that apt due at 14000 mi. would normally cost over $800 if paid for separately. I will just have to see what the dealer plans to charge for the contract for a Grom before I decide. I kind of like to fiddle with bikes, but if the price is right, I'll let the mechanics handle it. Anyone else looking into a maintenance contract? Note these are different than extended warranties and are handled by the dealer, not Honda. I figure Japanese bikes will hold up for years without needing an extended warranty. Never had a problem yet with one that would have benefited by an extended warranty anyway. I don't see screw holes for spools in the swingarm so I guess you'll just use a swingarm rear stand. Doesn't look like my center stand is going to fit it since the exhaust runs along the bottom so that's something else to deal with if I want to change a rear tire, adjust chains, etc. The bike is so small. I wonder if my front stand will even fit the triple tree without bumping into headlights, etc. I really need to see one of these bikes in person.

Every Honda built has a 600 mile check. A Gsxr does say check at 14-16k. They are almost never out. With a Grom I highly sugest getting your hands dirty and do the maintenance yourself. You will learn something.
 

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No service manuals yet, but someone thought the Honda crf50 had a similar engine as far as valve checking goes. There is a pretty good YouTube video showing a valve adjustment on the crf50 and it looks easy enough, but when I go back and look at photos of the Grom, the engines do not look so similar. Those large tappet caps that open up to view the valves do not appear to be present for one thing. Thing is, the maintenance contract has worked out very well on my Gixxer, however the Grom is going to require many more valve checks and that means leaving the bike a day at the dealer. Plus I need to decide at the time of purchase or very soon afterward if I want the maintenance contract for the Grom. I could probably tell in 2 min. if I want to tackle the valves, air filter, etc. if I could look at a service manual. At last check, the Honda dealer had not figured out a price for a maintenance contract on the Grom either. I have my name on the list though for the new service manual so hopefully I can make an informed decision by the time my Grom arrives.
 

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I follow that other Grom forum and someone was kind enough to send me the pdf file for the SERVICE manual including exactly how to adjust valves on the MSX125. He sent it to my email cause neither he or I can figure out how to send it to that forum (or this one either). If an administrator would like to receive a copy of the service manual...not the owners manual... that is already out, please furnish me with an email address so you can get it out for everyone to view. I can just attach the file to an email address. PS. It looks so easy to check valves, even I can do it. The manual includes those other maintenance procedures in detail also along with torque specs.
 
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