new head for a 100cc "samger samger" engine

[manuel newsom]

i bought a 100cc 2 stroke from the brand "samger samger" and im looking for a replacement head but im not sure what to get since everything is either for 50cc or 80cc any suggestions

 

[manuel newsom]

Why exactly are you looking for a YD100 top end kit... damage or upgrade?

I'm not aware of a 2 piece top end swap being available to the YD100 case/bolt pattern which is a little larger than the 66/69 with slightly larger transfer passages.

I do know there are now iron sleeved big bore kits for the 66/69 as large as 50mm which is exactly what the YD100 has.

The thread for the spark plug is really hard and i cant screw it in all the way, some exhaust gas comes out from it so i need to change it and i thought that i might as well upgrade it while im at it im probably gonna buy one of those big bore kits thank you

 

[DieselTech]

Does your cylinder head look like this?

 

[manuel newsom]

Does your cylinder head look like this?View attachment 160546

no its a cast iron one with the spark plug coming straight up like in the image

 

[DieselTech]

Buy a CDH CYLINDER HEAD, they make 3 different shapes of cylinder heads & there really good heads, here is mine.

 

[manuel newsom]

Buy a CDH CYLINDER HEAD, they make 3 different shapes of cylinder heads & there really good heads, here is mine.View attachment 160550

will do thank you

 

[DieselTech]

Mine is a 5.5cc combustion chamber.

 

[DieselTech]

That stock head is a decent cylinder head, find someone with a 14mmX1.5mm tap & run thru the spark plug hole. Problem fixed

 

[manuel newsom]

That stock head is a decent cylinder head, find someone with a 14mmX1.5mm tap & run thru the spark plug hole. Problem fixed

thats probably cheaper, i dont think ill be able to find anyone with that so ill just buy one

 

[manuel newsom]

You do understand that the big bore kits are specifically for the 66/69 cases right?

You said indirectly you have a YD100 meaning that a big bore kit won't fit the case

whats the 50mm about then ?