Author Topic: '86 Engine in '96 Frame?  (Read 3817 times)

0 Members and 1 Guest are viewing this topic.

Offline braggcreekdean

  • Newbie
  • *
  • Posts: 5
'86 Engine in '96 Frame?
« on: April 02, 2018, 09:59:44 AM »
Hello All.  I could not find a shock for my '86, but I did find a complete '96 rolling chassis.  If I am interpreting the parts interchange list correctly, my '86 engine will not fit in that '96 frame.  Is that correct? Anybody know how serious the fit issues are?  Thanks for the help.

Offline umberto

  • Administrator
  • Hero Member
  • *****
  • Posts: 2,488
  • First Ride 02-02-19
Re: '86 Engine in '96 Frame?
« Reply #1 on: April 03, 2018, 02:03:31 AM »
It will fit, you just need to do a few mods.  The 86-88 motors are a little easier to put in 250 frames because of the smaller head due to the more simple KIPS.  I put together a summary of what I did to stuff an 88 engine in a 2003 250.  The steps should be fairly similar (minus the head stay).  I love my conversion, and while it was a lot of work it was well worth it.

http://www.kxriders.com/forums/index.php/topic,17155.0.html
Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525/2017 KX250F - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144

Offline braggcreekdean

  • Newbie
  • *
  • Posts: 5
Re: '86 Engine in '96 Frame?
« Reply #2 on: April 03, 2018, 09:32:55 AM »
Thanks very much for the info.  That's exactly what I needed to see.  Cheers!

Offline dave916

  • Hero Member
  • *****
  • Posts: 546
Re: '86 Engine in '96 Frame?
« Reply #3 on: April 03, 2018, 09:37:06 AM »
Hello All.  I could not find a shock for my '86, but I did find a complete '96 rolling chassis.  If I am interpreting the parts interchange list correctly, my '86 engine will not fit in that '96 frame.  Is that correct? Anybody know how serious the fit issues are?  Thanks for the help.
86 Motor should fit easy enough in 96kx 500rolling chassis


A few little things u would need
1:newer type inlet manifold {angle} 88 would best fit but later would do
2: bottom engine bolts will be little loose in mounting {8mm engine]/ 10mm frame}
3:U May need a head stay bracket

Offline dave916

  • Hero Member
  • *****
  • Posts: 546
Re: '86 Engine in '96 Frame?
« Reply #4 on: April 03, 2018, 09:38:55 AM »
Hello All.  I could not find a shock for my '86, but I did find a complete '96 rolling chassis.  If I am interpreting the parts interchange list correctly, my '86 engine will not fit in that '96 frame.  Is that correct? Anybody know how serious the fit issues are?  Thanks for the help.

What the 96 frame a 250or 500?

Offline braggcreekdean

  • Newbie
  • *
  • Posts: 5
Re: '86 Engine in '96 Frame?
« Reply #5 on: April 03, 2018, 11:24:58 AM »
The '96 frame is a 500.

Offline alexander-vmann

  • Sr. Member
  • ****
  • Posts: 412
Re: '86 Engine in '96 Frame?
« Reply #6 on: April 05, 2018, 10:47:50 PM »
i have a 87 in a 93 frame. so i can confirm that you will need a new head bracket
KX 500 newbie

my bike: 1993 kx500

Offline umberto

  • Administrator
  • Hero Member
  • *****
  • Posts: 2,488
  • First Ride 02-02-19
Re: '86 Engine in '96 Frame?
« Reply #7 on: April 06, 2018, 02:42:52 AM »
Hello All.  I could not find a shock for my '86, but I did find a complete '96 rolling chassis.  If I am interpreting the parts interchange list correctly, my '86 engine will not fit in that '96 frame.  Is that correct? Anybody know how serious the fit issues are?  Thanks for the help.

What the 96 frame a 250or 500?

That should have been my first question.  :-D
Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525/2017 KX250F - Goliath
17 KX250F/04 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144