Difference between Honda DIO motor and Taiwan SYM motor

[BlackknPurple87]

Hello,
Can anyone tell me the difference between the Honda Dio motor and Taiwan SYM motor?
I understand that the parts are interchangeable and the DIO is preferred but what is it pros/cons about the SYM motors that do not compare to the Honda DIO. Thanks in advance for the knowledge.

Tk

[sum-azn-kid]

honda dio af18 has a bigger boost port. the gear cover is on the same side as the trans cover. sym the gear cover is on the inner side facing the wheel(must take off wheel and pipe to change gears). port on sym dd50 block are smaller than the af16 boost and intake. sym dd50 also has a vac. line from block since it's fuel tank is below the motor. sym arnada block looks like elite idk about the ports since i never worked on it that much

[kingkamehameha]

The sym has a stronger trans but poor casting quality. The blocks are made from cheaper metal

[maddog]

the major issue would be the gear ratio...

[HI808SYM]

does anyone know if the crankshafts and bearings are interchangeable? i need to install a new crank and was wondering if the honda bearings would fit.

and if the case metal is not as good wouldn't that mean its easier to port than the AF16?

[Mystic]

does anyone know if the crankshafts and bearings are interchangeable? i need to install a new crank and was wondering if the honda bearings would fit.

and if the case metal is not as good wouldn't that mean its easier to port than the AF16?

no it means that it could break or crack easier when porting

[veedubh20]

does anyone know if the crankshafts and bearings are interchangeable? i need to install a new crank and was wondering if the honda bearings would fit.

and if the case metal is not as good wouldn't that mean its easier to port than the AF16?

Should fit! Honda bearings and seals.



Dd case is smaller on intake, transfer n boost port. Can be ported!


72cc is a perfect size on Dd only n af16/18...

I got japan motor af18 that use s crank .

All need is get a Japanese wife.

[HI808SYM]

Should fit! Honda bearings and seals.



Dd case is smaller on intake, transfer n boost port. Can be ported!


72cc is a perfect size on Dd only n af16/18...

I got japan motor af18 that use s crank .

All need is get a Japanese wife.

haha. got the wife part covered but I still need the bearings and seals. "72cc is a perfect size on Dd only n af16/18" what do you mean.


and thanks again i always appreciate the input.

[sum-azn-kid]

i had a corsa on my stock sym block. it was fast for a 72... its all in the tuning and i could have tuned my bike more but i sold it