OzVMX Forum

Marque Remarks => KTM => Topic started by: gra1961 on June 28, 2013, 05:42:29 pm

Title: 84 AND 85 KTM250 PISTONS
Post by: gra1961 on June 28, 2013, 05:42:29 pm

CAN 84 AND 85 KTM 250 PISTONS BE INTERCHANGED? 84 PART NUMBER STARTS WITHH 543 AND 85 STARTS WITH 544.ANYONE HAVE PREVIOUS EXPERIENCE IF THESE PISTONS SWAP OVER? I DONT HAVE 2 SIDE BY SIDE TO VISUALY CHECK.84 MODEL SEEM EASIER TO GET IN THE OVERSIZE THAT I NEED FOR MY 85 MOTOR.CHEERS GREGG

Title: Re: 84 AND 85 KTM250 PISTONS
Post by: oz555ktm on June 28, 2013, 09:03:51 pm

       Need to check bore size I think that  piston in a 1984 was 71 mm and 1985 is 67.5 mm

Title: Re: 84 AND 85 KTM250 PISTONS
Post by: gra1961 on June 29, 2013, 07:29:47 am

the piston in it now is 71.7ish and it is a 544 prefix eng.it may have a 543 1984 barrel i suppose.i will check part number on barrel when i get home.