KX Riders

Maintenance & Technical => KX100 / KX85 / KX80 / KX65 / KX60 => Topic started by: btylerb on April 11, 2013, 01:53:30 PM

Title: ive got a top end problem
Post by: btylerb on April 11, 2013, 01:53:30 PM

ok so im doing a rebuild on my 03 kx65, standard bore is 44.5, my cylinder bore is 46.8 and i dont have the money to bore it over to a 47mm piston but i cant seem to find a 46.8 piston. does any one have an idea of where i can get/find one with out boring

Title: Re: ive got a top end problem
Post by: 81cr450 on April 11, 2013, 02:37:07 PM

Generally 2mm over is the biggest piston available which would be 46.5. The extra .3mm = 0.011811 inches so I'd say your bore is just wallered out .010 or so past max. Sounds like replate or sleeve time

Title: Re: ive got a top end problem
Post by: btylerb on April 11, 2013, 02:40:41 PM

thats what i was afraid of, which one wont hurt my wallet as bad?

Title: Re: ive got a top end problem
Post by: btylerb on April 11, 2013, 02:45:31 PM

i mean it already has a sleeve in it so should i just bore it up to the 47mm piston?

Title: Re: ive got a top end problem
Post by: 81cr450 on April 11, 2013, 03:00:18 PM

Can you find a 47mm piston?

Title: Re: ive got a top end problem
Post by: btylerb on April 11, 2013, 03:13:23 PM

ya i found a few