honda dio moto

293surfah · Post by **293surfah** » Wed Oct 12, 2011 8:33 pm

Hi i need some help im wondering if this kit Honda SA50 Elite S,SR 1994-2001 50mm Big Bore Kit from ebay would fit on a honda dio motor without any mods to the engine.? also would i need the change the crankshaft because of how big the piston is? im new to all of this kinda stuff could use some help thanks lmk i could send some pics of the bike

atomicareprise · Post by **atomicareprise** » Wed Oct 12, 2011 10:32 pm

we have a 50mm sheng-e bore fiited on our dio 2...some modifications are needed to fit it..

about the crankshaft it depends on how large the diameter of ur crank u'll be using...

ours is fiited with 80mm so we ported the carter...

hope it helps..

293surfah · Post by **293surfah** » Thu Oct 13, 2011 12:27 am

yaaa that kinda helps...so would any cranshaft fit with any 50mm big bore kits?

tru72 · Post by **tru72** » Thu Oct 13, 2011 12:33 am

LOL monsta? 50mm?
I was figuring you wanted to build a 125/ 130cc motor...
im using a 56 bore x 52.7 crank for my current drag bike

veedubh20 · Post by **veedubh20** » Thu Oct 13, 2011 12:55 am

Much easy to use stock crank, Mini stroker cranks, 44.4,43.2, 44.1, need to make
base gaskets.

atomicareprise · Post by **atomicareprise** » Thu Oct 13, 2011 3:48 am

using a full volume cranks with a 79.5mm in diameter will cost you to mill ur carters just to fit them...

if ur planning to use them in drag its better to get bigger cranks..but of course u'll be shaving ur carters...

atomicareprise · Post by **atomicareprise** » Thu Oct 13, 2011 3:51 am

btw 50mm bores have long and short stroke..same as the cranks...

mine are long stroke...

atomicareprise · Post by **atomicareprise** » Thu Oct 13, 2011 3:53 am

tru72 wrote:LOL monsta? 50mm?
I was figuring you wanted to build a 125/ 130cc motor...
im using a 56 bore x 52.7 crank for my current drag bike

i'm currently using a 55 bore..

just wonderin'where did u get ur 56mm piston?

293surfah · Post by **293surfah** » Thu Oct 13, 2011 6:15 am

soo each piston has to have a specific crank to it or you can use any kind of crank on any piston?

atomicareprise · Post by **atomicareprise** » Thu Oct 13, 2011 7:54 am

yes...if u have a long stroke block u should get the same piston..

if u use a short stroke piston on a long stroke block ur piston will be off from the top of ur block...

what i notice is that the wrist pin of short stroke is lower that the long stroke..

tazland001 · Post by **tazland001** » Thu Oct 13, 2011 1:13 pm

If you have a stock dio motor you can bolt the 50mm BBK directly on with no mods.

Taz

293surfah · Post by **293surfah** » Thu Oct 13, 2011 10:53 pm

thanks that helps alot!

maddog · Post by **maddog** » Fri Oct 14, 2011 3:12 am

you want to match the crank to the bore, anything after 51mm is not made for the street!!!

tazland001 · Post by **tazland001** » Wed Oct 19, 2011 6:08 pm

True that maddog.

Taz

maddog · Post by **maddog** » Thu Oct 20, 2011 7:58 pm

Thanx Taz, unlike "the bear" you know your stuff

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