You can lighten the spinner only. A lot of people delete it completely with a Kitaco side cover.

 

+1 to that. I will add that the Kitaco clutch cover also incorporates a small pleated-paper filter which can be replaced during oil-changes -- this is generally regarded as an improvement as well as making oil-changes much easier. The cover also includes optional-use ports, allowing for an external oil cooler to be added if desired.

 

Thank you for the info.
My plan is to install the clutch cover at some point in time. Cost is the issue right now.
We have a machine shop in the warehouse that I work. I talked to the foreman and he will turn down my oil spinner for me while we are at work at no cost.
So my plan is to start there and do the clutch cover upgrade a bit later. Probably at the same time I install the higher compression piston and a cam. Might be a good winter project for me and my boy.

 

you can do both with Zero issues. I have shown pic of the flywheel lighten and the wt before and after

I did notice that when I installed the lighten flywheel, revving the grom engine seems to free wheel a lot EZ but the only problem I noticed since metal material was removed I had a lower output voltage from the rectifier so I assume due to the reduce magnetic field from the shaved/machine metal removed near the magnets.

I have removed the lighten flywheel for now but will reinstall it since I upgraded my 2014 charging system to a 2017 rectifier and stator but using the OEM flywheel and seeing 13.2-14vdc output and maybe with the upgrade the lighten flywheel might produce a little move voltage in the 13.2-13.6vdc range.

lighten oil spinner that I did back in 2014

 

I have one FS if you want....25 buckssssssss

 

Anytime you start fooling with the stock design you run the risk of causing unforeseen issues. I am not an engineer, but from my racing days know from experience that modifying parts of the engine to improve performance often results in a cascading effect. I have looked at the Kitaco cover and like what I see, but the cost is a major issue, although I certainly think it is priced right. I just don't modify much on my bike since my main intent is to just ride it for fun. That being said, the weight of the oil spinner is part of the engineering equation for the bike, and removing it may (or may not) negatively affect the engine in the long run.

 

Anytime you start fooling with the stock design you run the risk of causing unforeseen issues.

i agree 100% and follow this on my big bikes. i just want to ride them, reliably. the grom is the first bike i have had that i can afford to monkey with, so I'm monkeying with it ?

 

some people even encrease rotational masses, there are some products on the market like this .::: YUMINASHI GLOBAL OFFICIAL WEBSITE - .::: PCX125 INERTIA POWER BOOSTER SET.

 

I lightened up the spinner on my bike by quite a bit. It definitely stalls a lil easier, but beyond that all gains, it revs much more freely now. Havnt touched and will never touch the flywheel.

 

I've installed flywheel weights to my 2-stroke dirt bikes to tame them down in the trails. The Grom needs the exact opposite of taming down so removing rotating mass is definitely going to be an improvement. It will be a little easier to stall like ND4 said, but its pretty hard to stall as is so I wouldn't worry about it.

 

Anyone running no spinner and lightened flywheel without issues?

 

I ran both the lighten flywheel and not spinner on my Takegawa 181-4v and it ran smooth only thing is that my voltage on my charging system went down to 12.6 then my engine blew up due to the PCV leaning out my A/F mixture. I guess the low voltage caused the ECM to act strangely. Now that I have a newer cylinder and piston in the Takegawa again and replaced the PCV with a Aracer and installed a 2017 stator and rectifier in my 2014 grom I see voltage of 13.2-14vdc usings the OEM flywheel and I might reinstall the lighten flywheel to see if the voltage will still be at 13.2-14vdc.