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Discussion Starter #1
I cannot find any videos on here or on youtube that shows how a valve adjustment is done on a Grom. I have seen the thread that gives the step by step instructions. But for a newbie like myself, I would like to see what the parts are that are being talked about in the instructions and how it is done in real life. Does anyone know where a video of this is? Would anyone be willing to film themselves with nice detail and closeups of the actions being done if they are planning on doing their valves soon?
 

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Biggest challenge for me was working around that darn air box. It has since been removed and future adjustments will be a breeze.
 

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This is just the way I do it, not trying to take anything away from the other adjustment thread..


Remove these two Allen plugs, as you can see my smaller one is worn from not seating the Allen fully so make sure it's all the way in





After removing them use a 17mm socket in the large one and turn the engine counter clockwise until you see a T in the smaller window, stop there




Next remove the tappet cover, this is top (intake) side, you can start at whichever you want, pictures are just for reference



It should look like this, take a 9mm wrench and break that nut loose, once loose use a pair of needle nose to turn the small squared piece counter clockwise about 1 turn



Open your feeler gauge to the spec for this valve (in: .004, ex: .007) set it between the tip of the valve and the tip of the rocker (again pictures are demonstration, the intake should be .004 not .007 like shown)



Using needle nose, turn the small square clockwise until it just barely pinches the gauge between the valve tip and the rocker (you may need to loosen the nut for enough clearance) once it's there, hold the square still with needle nose and tighten the 9mm nut with the open end of a wrench until snugged down, if the gauge slides out with a small amount of resistance you're done with that one and ready to move on to the next


Hope this helps
 

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This is just the way I do it, not trying to take anything away from the other adjustment thread..


Remove these two Allen plugs, as you can see my smaller one is worn from not seating the Allen fully so make sure it's all the way in





After removing them use a 17mm socket in the large one and turn the engine counter clockwise until you see a T in the smaller window, stop there




Next remove the tappet cover, this is top (intake) side, you can start at whichever you want, pictures are just for reference



It should look like this, take a 9mm wrench and break that nut loose, once loose use a pair of needle nose to turn the small squared piece counter clockwise about 1 turn



Open your feeler gauge to the spec for this valve (in: .004, ex: .007) set it between the tip of the valve and the tip of the rocker (again pictures are demonstration, the intake should be .004 not .007 like shown)



Using needle nose, turn the small square clockwise until it just barely pinches the gauge between the valve tip and the rocker (you may need to loosen the nut for enough clearance) once it's there, hold the square still with needle nose and tighten the 9mm nut with the open end of a wrench until snugged down, if the gauge slides out with a small amount of resistance you're done with that one and ready to move on to the next


Hope this helps
Great techno info for the newbies
Thanks for sharing so all the Gromers will understand a little about their Honda Grom and how to do your own maintenance.
Ride safe all
 

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Discussion Starter #8
Thanks for the pics and explanation! That helps a lot! Now I just need to go get the right tools and I can do this.


Sent from my iPhone using HondaGrom.net
 

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Discussion Starter #12
Are the exhaust and intake valves right next to each other? How
Do you know which one is which?


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exhaust is in the bottom, its closest to the exhaust pipe,

the intake is on the top, its closest to the intake :p


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be careful if you don't do it right you can mess things up. also when you take the covers off it will leak oil
 

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Discussion Starter #16
be careful if you don't do it right you can mess things up. also when you take the covers off it will leak oil
How much oil? Do I need to buy another quart to top off what got leaked out after? And what would mess it up other than not measuring it right?
 

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Just look at the engine, it's pretty self explanatory.. Top cap and bottom cap, also it's very important that the engine be dead cold so do the adjustment after it's sat for quite a while

the bottom (exhaust) cover might leak a little, you should only loose a couple ounces at most
 

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Discussion Starter #18
I will do mine tomorrow and it hasn't been ridden since yesterday so it will have been resting for 2 days. I really wish there was a detailed video out there for this procedure but I think I can make it work with the pictures. This will be my first time doing this.


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if you really don't understand it maybe you shouldn't be doing it, i tell that to most who want to work on their bike, some come to me after because they messed something up.
 
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