Planet Minis

xr50rider14 · 11-27-2009, 04:49 PM

When you replace a scored piston/cylinder.. you get a new piston kit and what do you do with the cylinder? Get it honed?

doopsx3 · 11-27-2009, 05:30 PM

usually if it has been scored ya need to bore it and if ya do that ur piston kit will be too small......best to return the piston kit and get a kit with a matched cylinder

xr50rider14 · 11-27-2009, 05:33 PM

Quote:

Originally Posted by doopsx3

usually if it has been scored ya need to bore it and if ya do that ur piston kit will be too small......best to return the piston kit and get a kit with a matched cylinder

Ok. Thanks.

arlindsay1992 · 11-27-2009, 08:12 PM

On these bikes boring the cylinder is almost pointless. A new cylinder is so cheap you might as well replace rather than repair in this case.

xr50rider14 · 11-27-2009, 10:17 PM

Quote:

Originally Posted by arlindsay1992

On these bikes boring the cylinder is almost pointless. A new cylinder is so cheap you might as well replace rather than repair in this case.

Alright.. ill tell my friend that. lol

50rider340 · 11-27-2009, 10:37 PM

depending on how bad it is you can just run a really light ball hone on the cylinder. You can get 2 to 3 hones out of them if who is doing the hone knows what there doing. Throw a new piston in and be good as new.

xr50rider14 · 11-27-2009, 11:01 PM

Quote:

Originally Posted by 50rider340

depending on how bad it is you can just run a really light ball hone on the cylinder. You can get 2 to 3 hones out of them if who is doing the hone knows what there doing. Throw a new piston in and be good as new.

I think its too badly scored to be honed and be fine. Ill take pics soon though.

50rider340 · 11-29-2009, 11:02 PM

def take some pictures, you be very surprised what i have run for a entire season haha, and the bit still not burning oil.

xr50rider14 · 11-30-2009, 07:28 AM

Quote:

Originally Posted by 50rider340

def take some pictures, you be very surprised what i have run for a entire season haha, and the bit still not burning oil.

Haha its not my engine anymore so its not at my house to take pics but ill try and get some somehow. My friend (owner of the engine) had his friends look at it and they said it could be honed and then be usable.

11-27-2009, 04:49 PM	#1 (permalink)
xr50rider14 3rd Gear Member Join Date: Oct 2008 Location: NY Posts: 1,198 My Mood:	Scored piston/cylidner When you replace a scored piston/cylinder.. you get a new piston kit and what do you do with the cylinder? Get it honed?

11-27-2009, 05:30 PM	#2 (permalink)
doopsx3 3rd Gear Member Join Date: Aug 2008 Location: San Diego Posts: 4,730 My Mood:	Re: Scored piston/cylidner usually if it has been scored ya need to bore it and if ya do that ur piston kit will be too small......best to return the piston kit and get a kit with a matched cylinder

11-27-2009, 08:12 PM	#4 (permalink)
arlindsay1992 "High Speed Record Guy" Join Date: Mar 2006 Location: Northern Virginia Posts: 4,495	Re: Scored piston/cylidner On these bikes boring the cylinder is almost pointless. A new cylinder is so cheap you might as well replace rather than repair in this case.

11-27-2009, 10:37 PM	#6 (permalink)
50rider340 3rd Gear Member Join Date: Mar 2004 Location: CT Posts: 3,322 My Mood:	Re: Scored piston/cylidner depending on how bad it is you can just run a really light ball hone on the cylinder. You can get 2 to 3 hones out of them if who is doing the hone knows what there doing. Throw a new piston in and be good as new.

11-29-2009, 11:02 PM	#8 (permalink)
50rider340 3rd Gear Member Join Date: Mar 2004 Location: CT Posts: 3,322 My Mood:	Re: Scored piston/cylidner def take some pictures, you be very surprised what i have run for a entire season haha, and the bit still not burning oil.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)