machining bottom of cylinder for a KTM

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little jeff

Member

Aug 20, 2002

126

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• Aug 23, 2002

• #1

This message is actually directed to Eric Gorr. This Fall sometime, I will be sending you my top end off my 2002 KTM 300EXC for your porting job, head mods, and machining the bottom of the cylinder. My question is this, when you machine the bottom of the cylinder, will the shaft from the crankcase that actuates the power valves, still be able to engage the gears on the power valve? I hope I worded that correctly. I haven't taken the cover off yet to see how that is set up yet.
Any thoghts
thanks little jeff

 

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MikeS

LIFETIME SPONSOR

Jun 12, 2000

716

1

• Aug 23, 2002

• #2

Little Jeff

Don't sweat it. It will work out. The rod is adjustable. Once the PV is set to the proper "z" dimension per the KTM Manual. Then you can adjust the rod to pop in place. Only a few thousands (10-30) are removed from the lower part of the cylinder.

 

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little jeff

Member

Aug 20, 2002

126

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• Aug 23, 2002

• Thread starter
• #3

Mike S, What is the PV? I haven't got a manual yet.

 

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crkid

~SPONSOR~

Oct 14, 2001

665

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• Aug 23, 2002

• #4

Power Valve.

 

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little jeff

Member

Aug 20, 2002

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• Aug 23, 2002

• Thread starter
• #5

I don't know why I didn't think of that, DUH!

 

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Scott Senatore

Member

Apr 26, 2000

133

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• Aug 26, 2002

• #6

Hey Jeff, can you give me some details on what the porting will do to your power band.
thanks

 

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little jeff

Member

Aug 20, 2002

126

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• Aug 26, 2002

• Thread starter
• #7

Rick, it is supposed to give me more low to mid power and more top overrev. make the power a little more manageable in the mid. According to Eric Gorr. I'm getting the Mo Better Everywhere porting job.

 

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Scott Senatore

Member

Apr 26, 2000

133

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• Aug 27, 2002

• #8

Thanks Jeff, I would be very interested to here how you like it when the work is done.