Hey kdx250 1991 SR model kx250

Discussion specific to KDX models not sold in the USA
Post Reply
Stevetooms
Member
Posts: 20
Joined: 09:46 am Nov 14 2019
Country: United Kingdom

Hey kdx250 1991 SR model kx250

Post by Stevetooms » 08:35 pm Nov 24 2019

Does anyone know if a kx250 carb and piston kit will work and fit into my kdx250 1991 SR model thanks

kdxsully
Supporting Member
Posts: 692
Joined: 08:28 am Apr 21 2019
Country: United States
Location: North Cackalack

Re: Hey kdx250 1991 SR model kx250

Post by kdxsully » 09:59 pm Nov 24 2019

No idea. Are the part numbers the same? Check partzilla for the part numbers of each respective bike. You might need the carb boots as well
I like turtles

User avatar
KDXGarage
KDXRider.net
KDXRider.net
Posts: 11096
Joined: 06:45 am Nov 01 2004
Country: United States of America
Location: AL, USA
Contact:

Re: Hey kdx250 1991 SR model kx250

Post by KDXGarage » 11:39 pm Nov 24 2019

Please do not post the same or very similarly worded question in multiple subforums.

Sorry that you have not received more help for your unique model.
Thank you for participating on kdxrider.net. :bravo:
To post pictures from a device: viewtopic.php?f=88&t=24128

Stevetooms
Member
Posts: 20
Joined: 09:46 am Nov 14 2019
Country: United Kingdom

Re: Hey kdx250 1991 SR model kx250

Post by Stevetooms » 05:19 am Nov 25 2019

Hey thanks for your help

Dan 250sr
Supporting Member III
Supporting Member III
Posts: 89
Joined: 03:01 am Nov 06 2018
Country: Japanese version
Location: UK Hertford

Re: Hey kdx250 1991 SR model kx250

Post by Dan 250sr » 06:21 am Jan 10 2020

Change inlet manifold to 38 and a kx carb will work.. kx 250/ 500 inlet manifold are 38 ... your con rod small end is a different size to a kx . One is 18 mm bearing and the other is a 19 mm bearing... also kx wrist pin is in a different place to kdx piston.. you can fit a kx con rod and a earlier kx barrel 89 /90 . 70 mm stroke/ 91 92 use 72 mm stoke so won't work unless you machine top of barrel. I had my head machined to lower squish gap .

User avatar
KDXGarage
KDXRider.net
KDXRider.net
Posts: 11096
Joined: 06:45 am Nov 01 2004
Country: United States of America
Location: AL, USA
Contact:

Re: Hey kdx250 1991 SR model kx250

Post by KDXGarage » 08:27 am Jan 10 2020

THANK YOU, DAN!!
Thank you for participating on kdxrider.net. :bravo:
To post pictures from a device: viewtopic.php?f=88&t=24128

Dan 250sr
Supporting Member III
Supporting Member III
Posts: 89
Joined: 03:01 am Nov 06 2018
Country: Japanese version
Location: UK Hertford

Re: Hey kdx250 1991 SR model kx250

Post by Dan 250sr » 11:10 am Jan 11 2020

No worries hope it helps 👍

Post Reply