Top End Job Yet?

M

m1a

Member

Oct 20, 2002

25

0

• Oct 20, 2002

• #1

I have probably 3500 to 4000 miles on my kdx and two seasons, I have lost noticeable amt. of bottom end power any chance it could be solved with a new pair of reeds or is it certain I need a top end job by now?

 

W

woodsy

~SPONSOR~

Mi. Trail Riders

Jan 16, 2002

2,933

1

• Oct 21, 2002

• #2

I would do both - you will be surprized how much pop you have lost!! It will be like getting a new bike for under $200.
Woodsy

 

M

m1a

Member

Oct 20, 2002

25

0

• Oct 21, 2002

• Thread starter
• #3

Wouldn't a top end job be around $400 at a dealership?

 

F

Fred T

Mi. Trail Riders

LIFETIME SPONSOR

Mar 23, 2001

5,272

2

• Oct 21, 2002

• #4

Piston kit - $100 - $110 Wiseco
Gasket kit -$30 -cometic
Wrist pin bearing - $11.00
Service manual - $40 -if you don't have one yet.

Learning to do your own top end - priceless.

 

F

Fred T

Mi. Trail Riders

LIFETIME SPONSOR

Mar 23, 2001

5,272

2

• Oct 21, 2002

• #5

Piston kit - $100 - $110 Wiseco
Gasket kit -$30 -cometic
Wrist pin bearing - $11.00
Service manual - $40 -if you don't have one yet.
Boyesen 607 reeds -$30

Learning to do your own top end - priceless.

 

M

m1a

Member

Oct 20, 2002

25

0

• Oct 21, 2002

• Thread starter
• #6

How hard is it to clean the powervalves and replace them correctly? I hear some pretty nasty things can happen if they don't go back in the way they came out.

 

B

BRush

LIFETIME SPONSOR

Jun 5, 2000

1,100

0

• Oct 21, 2002

• #7

Not too hard, if you have a service manual and take your time. Note also that some service manuals have an error about which subport valves go where. See the correction on the http://justkdx.dirtrider.net website. There's also an excellent top-end pictorial there.

 

C

canyncarvr

~SPONSOR~

Oct 14, 1999

4,005

0

• Oct 21, 2002

• #8

200 or 220?

Use a wiseco for the 220. Stock piston breaks sometimes.

Use a stock piston for the 200. From pro-x cuz that's the only way you're going to get a properly sized a,b,c,d piston for your bike. Order one from kawi and you have no say as to WHICH piston you get. No sense putting a 'b' piston in a 'c' motor if you can get around it.

With the 220/wiseco, you have no option in that vein at all. Probably ends up a better deal anyway 'cuz you want a bit more clearance for the wiseco anyway.

At 4000 miles, you're due.

Could always spend $400 on an EG 225 kit! Then you don't have to mess with the KIPS at all! Let HIM do it!!