Time for a new cylinder?!?

Got questions? We got answers....
Post Reply
User avatar
TwistedRoot
Gold Member
Gold Member
Posts: 323
Joined: 02:56 pm Oct 08 2017
Country: United States
Location: Florida, US

Time for a new cylinder?!?

Post by TwistedRoot »

Hey all it looks like my sweet '02 200 has eaten some sand. Prob going with PowerSeal to replate it since its fairly close and have a pretty good rep. I figure they have been in biz for a while, price seems fair and everybody else seems to not have issues. Any thoughts?
Heres a pic for laughs. Well, not really. :wah:
Attachments
02KDX CylinderXXX.jpg
02KDX CylinderXXX.jpg (584.26 KiB) Viewed 2261 times
2002 KDX 200
2003 KDX 220
cornishwrecker220
Member
Posts: 743
Joined: 06:37 am Nov 22 2009
Country:
Location: united kingdom

Re: Time for a new cylinder?!?

Post by cornishwrecker220 »

Those ports look very clean , almost too clean with hardly any carbon, & as for the piston that looks in good shape too albeit slight heat discolouration on the crown ...
Did the bike seize ??
User avatar
TwistedRoot
Gold Member
Gold Member
Posts: 323
Joined: 02:56 pm Oct 08 2017
Country: United States
Location: Florida, US

Re: Time for a new cylinder?!?

Post by TwistedRoot »

No it was running well and has good compression. I just thought it was time for a rebuild and a new Wiseco. As fas as the ports, I agree they look good and the bike is in great shape. Im a little surprised to see the grooves but the electrofusion had a good run of 16 years.
2002 KDX 200
2003 KDX 220
cornishwrecker220
Member
Posts: 743
Joined: 06:37 am Nov 22 2009
Country:
Location: united kingdom

Re: Time for a new cylinder?!?

Post by cornishwrecker220 »

How long have you owned the bike ...& is that a number I can see on the crown of the piston ?
User avatar
TwistedRoot
Gold Member
Gold Member
Posts: 323
Joined: 02:56 pm Oct 08 2017
Country: United States
Location: Florida, US

Re: Time for a new cylinder?!?

Post by TwistedRoot »

cornishwrecker220 wrote: 04:29 pm Feb 06 2019 How long have you owned the bike ...& is that a number I can see on the crown of the piston ?
Have had it for 1 year or so. I think there is a "C" stamped on the crown but no other lettering. Could that be oem?
2002 KDX 200
2003 KDX 220
Vossman
Supporting Member II
Supporting Member II
Posts: 262
Joined: 06:23 pm Jul 24 2017
Country: USA

Re: Time for a new cylinder?!?

Post by Vossman »

I just sent mine to Powerseal, should be back in another week or so.
User avatar
KDXGarage
KDXRider.net
KDXRider.net
Posts: 14047
Joined: 06:45 am Nov 01 2004
Country: United States of America
Location: AL, USA
Contact:

Re: Time for a new cylinder?!?

Post by KDXGarage »

Your title asks if it is time for a new cylinder. I would say no. I would definitely send it off for plating. I have read many positive reviews of PowerSeal USA here and on other forums. If I had to send off a cylinder for a plating, they would be on the very short list.
Thank you for participating on kdxrider.net. :bravo:
To post pictures from a device: viewtopic.php?f=88&t=24128
User avatar
TwistedRoot
Gold Member
Gold Member
Posts: 323
Joined: 02:56 pm Oct 08 2017
Country: United States
Location: Florida, US

Re: Time for a new cylinder?!?

Post by TwistedRoot »

Vossman: Your build is awesome and I have learned a lot. Great job on the bottom end. I think I can get away with not doing that right now. Post some pics of your cylinder when it gets back!
J- Yes I meant the plating. Have read a lot about PS as well and it seems you cant go wrong. Im paying the extra $20 for them to pull the studs too. I will have to decide if I want to get it ported when it returns.
2002 KDX 200
2003 KDX 220
Dan 250sr
Supporting Member III
Supporting Member III
Posts: 93
Joined: 03:01 am Nov 06 2018
Country: Japanese version
Location: UK Hertford

Re: Time for a new cylinder?!?

Post by Dan 250sr »

That looks like big bore time :grin:
User avatar
rexemouse
Supporting Member I
Supporting Member I
Posts: 31
Joined: 01:06 pm Apr 21 2017
Country: Southcoast MA

Re: Time for a new cylinder?!?

Post by rexemouse »

I am sending mine out to PS as well. I called today for pricing on a wiseco and gaskets. Super nice over the phone. Btw, they are backed up a bit, 2-3 week turnaround.

Does anyone know if they actually machine match to the new piston, or just machine it to factory spec and shove a piston in the box? I didn't ask this to the woman on the phone.
Dan 250sr
Supporting Member III
Supporting Member III
Posts: 93
Joined: 03:01 am Nov 06 2018
Country: Japanese version
Location: UK Hertford

Re: Time for a new cylinder?!?

Post by Dan 250sr »

Normally they try and keep it standard, if scores are two deep there just bore it out to get a good surface. They should advise you once they see the barrel what needs doing ect. I think you only need to worry about matching piston exactly if you have a racing engine, I think they allow a bit more clearance for the higher reving piston expansion
Vossman
Supporting Member II
Supporting Member II
Posts: 262
Joined: 06:23 pm Jul 24 2017
Country: USA

Re: Time for a new cylinder?!?

Post by Vossman »

If they have a piston to go off of they will work off that size. The Wiseco KDX piston is 66mm, Wosner is 65.95 etc. so I guess if you don’t tell them what your gonna put in it they’ll just do it to a predetermined size.
User avatar
TwistedRoot
Gold Member
Gold Member
Posts: 323
Joined: 02:56 pm Oct 08 2017
Country: United States
Location: Florida, US

Re: Time for a new cylinder?!?

Post by TwistedRoot »

I sent a new Wiseco (66mm) with my cylinder. Its going to be a looong 3 week wait.
2002 KDX 200
2003 KDX 220
User avatar
Molly's 70
Platinum Member
Platinum Member
Posts: 563
Joined: 04:29 pm Jun 18 2017
Country: USA
Location: Wichita, Kansas USA

Re: Time for a new cylinder?!?

Post by Molly's 70 »

Take advantage of your 3 week wait, and do all the other stuff you forgot to do. Like, work on the bike. lol
If you lend someone $20, and never see that person again, it was probably worth it.
Post Reply