Author Topic: 90 KX250 rebuild  (Read 57006 times)

0 Members and 21 Guests are viewing this topic.

Offline SOHC

  • Full Member
  • ***
  • Posts: 119
Re: 90 KX250 rebuild
« Reply #90 on: October 29, 2015, 09:11:27 PM »
Here is how to restore your plastics.
https://www.youtube.com/watch?v=n5JLhBEcROc&feature=youtu.be

Cool thank you,

I went and got a buffing wheel for the drill and tried this, it works pretty well, the problem is the wite bend marks ans deep scratches.


The petrol tank is genuine Kawasaki and was easy to polish but the UFO plastics are hard and horable and gooey to sand and buff.   

Offline SOHC

  • Full Member
  • ***
  • Posts: 119
Re: 90 KX250 rebuild
« Reply #91 on: November 03, 2015, 07:02:18 PM »
Seat cover has been fitted, its from a 1993 so didn't line up 100%


Offline SOHC

  • Full Member
  • ***
  • Posts: 119
Re: 90 KX250 rebuild
« Reply #92 on: December 31, 2015, 12:43:39 PM »
Got a PC pipe on the way, its old and needs lots of repair but I think I can get this one looking nice as no one has tried to fix it before.

The cylinder head needs to come off to have the squish band cut deeper.

I got side tracked by my hotrod project and gave that a couple months work so nothing got done on the KX and I used all my money.
« Last Edit: December 31, 2015, 12:46:09 PM by SOHC »

Offline sandblaster

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 8,271
    • OEM-CYCLE QUALITY USED PARTS
Re: 90 KX250 rebuild
« Reply #93 on: December 31, 2015, 12:56:59 PM »
White bends in plastic can be removed with a heat gun.... Careful....  8-)
The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline SOHC

  • Full Member
  • ***
  • Posts: 119
Re: 90 KX250 rebuild
« Reply #94 on: January 01, 2016, 04:07:15 PM »
White bends in plastic can be removed with a heat gun.... Careful....  8-)

I tried that, I didn't do anything, they are too old, bend has been there for meany years, I have them a wet and dry sand and then a buff with a buffing wheel and they look ok now.

Offline SOHC

  • Full Member
  • ***
  • Posts: 119
Re: 90 KX250 rebuild
« Reply #95 on: January 21, 2016, 10:31:11 AM »
Never ever use Canada post, everything on there web page is lies, been waiting 9 weeks for my parcel.


Other than that I have removed my cylinder head and a friend says he can hold it in the 4 jaw chuck to recut the squish band, and I will index the sparkplug wile its off, might make some undetectable difference in power.     

Offline SOHC

  • Full Member
  • ***
  • Posts: 119
Re: 90 KX250 rebuild
« Reply #96 on: February 21, 2016, 06:51:34 AM »



Offline SOHC

  • Full Member
  • ***
  • Posts: 119
Re: 90 KX250 rebuild
« Reply #97 on: March 16, 2016, 11:11:55 AM »
Ordered a set of clutch plates and the friction plates came with a note saying they only had one steel in stock, so now I have a set of genuine steels on order from japan.

Offline SOHC

  • Full Member
  • ***
  • Posts: 119
Re: 90 KX250 rebuild
« Reply #98 on: May 16, 2016, 10:55:32 AM »
Fished, bike has 3 hours on it now from tuning and only road use, its very powerful, when I open the throttle it just wheel spins and I have to lean fward to keep the front down.   












Offline Foxx4Beaver

  • Hero Member
  • *****
  • Posts: 8,952
  • James Stewart DID NOT invent the scrub!!..JoJo
Re: 90 KX250 rebuild
« Reply #99 on: May 16, 2016, 11:11:14 AM »
looks good!
put a fresh rear tire on so it hooks up....then you'll really have to lean forward.
Excuse me, ma'am...but you've got extremely nice legs!!!...what time do they open???                                                                                                               https://www.youtube.com/watch?v=n8tCgN3aryQ

Offline DP3601

  • Full Member
  • ***
  • Posts: 81
Re: 90 KX250 rebuild
« Reply #100 on: May 16, 2016, 03:41:05 PM »
That was quite the transformation.  Looks great!

Offline ecdeyzel

  • Full Member
  • ***
  • Posts: 159
Re: 90 KX250 rebuild
« Reply #101 on: May 16, 2016, 07:25:19 PM »
The bike is looking good SOHC! Well done. Glad to hear of your power struggle. :lol:

P.S. Let me know how the radiators work out. I will be going the same route when I get to it. Did they fit ok, or did you have to massage them a bit? Are they GPI?

Ed
2007 Suzuki DR650SE
1999 Kawasaki KX250 (Rebuild in Progress)

Offline SOHC

  • Full Member
  • ***
  • Posts: 119
Re: 90 KX250 rebuild
« Reply #102 on: May 18, 2016, 10:01:08 PM »
Radiators are very good, engine stays cool even after a hard run, no boiling etc, no leeks yet to.

That rear tire was mint when I got the bike, now its destroyed, I will get something more suited to the road next but it will destroy that to I bet.   

Offline Foxx4Beaver

  • Hero Member
  • *****
  • Posts: 8,952
  • James Stewart DID NOT invent the scrub!!..JoJo
Re: 90 KX250 rebuild
« Reply #103 on: May 19, 2016, 07:18:51 AM »
I will get something more suited to the road next but it will destroy that to I bet.   

you making it street legal?....or just out do'in some good ole fashioned fun illegal street hawkin? :evil:
Excuse me, ma'am...but you've got extremely nice legs!!!...what time do they open???                                                                                                               https://www.youtube.com/watch?v=n8tCgN3aryQ

Offline SOHC

  • Full Member
  • ***
  • Posts: 119
Re: 90 KX250 rebuild
« Reply #104 on: May 20, 2016, 06:43:12 PM »
I will get something more suited to the road next but it will destroy that to I bet.   

you making it street legal?....or just out do'in some good ole fashioned fun illegal street hawkin? :evil:

LOL just illegal street use, i never plan to use it off road ever :)