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Re: Is that a stock piston in my kdx220??
Posted: 10:58 am Aug 14 2015
by mtaylor
Julien D wrote:That bottom end really should be split now. You'll never be sure you got all those bits out otherwise.
I probably will, but theres an enduro event coming up soon that I want to ride. So ill probably just throw the new piston in and see how it goes.
As for doing a bottom end rebuild, I couldnt find a complete crank kit for the kdx (like from hot rods). I could only find the connecting rod and crank side bearings.
What do you guys use / do ?
Also the cylinder has some damage, some pitting near the bottom (not in the compression zone) and some chips with sharp burs on the ports.
I dont want to pay to replate it at this point, think ill try to debur the edges and clean it the best I can. And hope the rings dont get caught.
Re: Is that a stock piston in my kdx220??
Posted: 11:28 am Aug 14 2015
by Tedh98
mtaylor wrote:
I probably will, but theres an enduro event coming up soon that I want to ride. So ill probably just throw the new piston in and see how it goes.
As for doing a bottom end rebuild, I couldnt find a complete crank kit for the kdx (like from hot rods). I could only find the connecting rod and crank side bearings.
What do you guys use / do ?
Also the cylinder has some damage, some pitting near the bottom (not in the compression zone) and some chips with sharp burs on the ports.
I dont want to pay to replate it at this point, think ill try to debur the edges and clean it the best I can. And hope the rings dont get caught.
There aren't complete crank kits for the KDX, you need to have the OEM rebuilt.
Can you borrow or rent a bike for that enduro? I think you are taking a big risk ruining a new Wiseco or doing more damage running things as is.
Re: Is that a stock piston in my kdx220??
Posted: 11:45 am Aug 14 2015
by Julien D
^
I agree with this.
Re: Is that a stock piston in my kdx220??
Posted: 02:30 pm Aug 18 2015
by C George
Julien D wrote:^
I agree with this.
+2 ,,, that cylinder is some rough shape. I'd doubt if you could smooth out the ports w/o flaking the stock electrofusion.
Look at the top of the exhaust port ..... Somebody must have heard something when it first came apart.
Is that a stock piston in my kdx220??
Posted: 07:35 am Sep 13 2015
by mtaylor
Well I put the new piston in it and rode it in the enduro. Started and ran fine.
Doesnt idle well - is this adjustable on the 220 carb? (There is a strange black plastic or rubber thing where I expected the idle adjust screw)
Rear brake seized up on me, so I went home early. Still had a few hours of fun.