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?
Valve Adjustment
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Just read that thread. If you can change your oil and spark plug, then a simple valve adjustment should be easy for you. Not as difficult as it may seem, on the Grom.
Other bikes can be a bit more difficult due to different ways to gap.
Add: And I haven't seen a video yet either.
Sparkle MoTion
Other bikes can be a bit more difficult due to different ways to gap.
Add: And I haven't seen a video yet either.
Sparkle MoTion
Can you show us what you did?
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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
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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8,369 Posts
Great techno info for the newbiesThis 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
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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78 Posts
Nice DIY instructions! How many miles is the valve adjustment due?
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290 Posts
600, then 2500
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103 Posts
exhaust is in the bottom, its closest to the exhaust pipe,
the intake is on the top, its closest to the intake
Sent from my iPhone using HondaGrom.net mobile app
the intake is on the top, its closest to the intake
Sent from my iPhone using HondaGrom.net mobile app
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
the bottom (exhaust) cover might leak a little, you should only loose a couple ounces at most
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.
Sent from my iPhone using HondaGrom.net
Sent from my iPhone using HondaGrom.net
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