compression release mod for Cota 247

[Niro]

I read at an old post about adding compression release to Cota 247. 

Here: 

 

Can someone please share more information about this mod? How and where you add this, benefits, photos. Any information will be appreciated. 

Thanks. 

[Old Gezzer]

Hi,

    You will find the item is called a Decomressor and it fits in the cylinder head in a tapped hole the same size as the spark plug hole.And is operated by a small lever usually on the left hand side of the handlebars.

https://www.inmotiontrials.com/product/14mm-decompressor-kit-universal/

[Niro]

Can I fit it to the early model of the Cota 247? Main is 21M2067, I believe it has only 1 hole for the spark plug. 

[feetupfun]

10 hours ago, Niro said:

Can I fit it to the early model of the Cota 247? Main is 21M2067, I believe it has only 1 hole for the spark plug. 

Everything is possible, but if there is only one hole in the head, then the head will need to be removed and some finning machined away and a hole bored and threaded to create a second hole for the decompressor. They can't both go in the same hole.

[Niro]

On 12/3/2021 at 11:19 PM, feetupfun said:

Everything is possible, but if there is only one hole in the head, then the head will need to be removed and some finning machined away and a hole bored and threaded to create a second hole for the decompressor. They can't both go in the same hole.

I think this is the case in my early Cota modal.

Since I'm still newbie to the bike, I think I will save this kind of project for the future. 

Thanks.