i have a js 550. engine is a convert. to a reed vavle with the Goki adaptor mod. uses 650sx reeds.
After ceasing the front piston, didnt have any cooling to the cylinder ! So opened up, and i see the front piston has ports. looks stock, but has the holes in the top, like all the reed valve pistons.
Awaiting arrival is a new gasket kit, reeds, and wiseco 76.5 dual ring reed valve pistons.
got bored and honed a few days ago.
MY QUESTION:
In a previous post a user, ( i forgert and cant find the post anymore ) told me that indeed the pistons purpose WAS for boost porting, as the piston has both ports and drillings. However my machinist said it wasn''t tho isnt 100%.
THE QUESTION- IF THIS WAS MEANT TO RUN AS A BOOST PORTED ENGINE, DO I HAVE TO CONTINUE WITH THIS SET UP OR CAN I JUST RUN THE UNPORTED PISTONS, COOLING THE FRONT CYL.
What will happen to my motor?
thanks for your help,
eventually, i will ride this beast, day 80 working on it ( most annoying is having to wait 2-4 weeks everytime i need a part.
After ceasing the front piston, didnt have any cooling to the cylinder ! So opened up, and i see the front piston has ports. looks stock, but has the holes in the top, like all the reed valve pistons.
Awaiting arrival is a new gasket kit, reeds, and wiseco 76.5 dual ring reed valve pistons.
got bored and honed a few days ago.
MY QUESTION:
In a previous post a user, ( i forgert and cant find the post anymore ) told me that indeed the pistons purpose WAS for boost porting, as the piston has both ports and drillings. However my machinist said it wasn''t tho isnt 100%.
THE QUESTION- IF THIS WAS MEANT TO RUN AS A BOOST PORTED ENGINE, DO I HAVE TO CONTINUE WITH THIS SET UP OR CAN I JUST RUN THE UNPORTED PISTONS, COOLING THE FRONT CYL.
What will happen to my motor?
thanks for your help,
eventually, i will ride this beast, day 80 working on it ( most annoying is having to wait 2-4 weeks everytime i need a part.