Author Topic: 84 AND 85 KTM250 PISTONS  (Read 1534 times)

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Offline gra1961

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84 AND 85 KTM250 PISTONS
« 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

Offline oz555ktm

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Re: 84 AND 85 KTM250 PISTONS
« Reply #1 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
And Please forgive me as I cant Spell for Shit ...
And I have very Bad Gramer ...too I been told ......

Offline gra1961

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Re: 84 AND 85 KTM250 PISTONS
« Reply #2 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.