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Author Topic: kx 500 1987  (Read 11722 times)

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Offline dave hamm 76

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kx 500 1987
« on: June 18, 2013, 06:07:13 AM »
i have brought a 1987 kx500 n its a basket case, i am sending the engine off for a total rebuild top n bottom, do i keep the steel frame n refurbish it or go down the ally frame road ? if i go down the ally road then which year n model would be suited for my 87 engine ?
     if i keep the steel frame then i will need the rear bolt on section of the frame coz mine as been hacked at and the top of the rear shock frame as been welded :( many thanks
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Offline sandblaster

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Re: kx 500 1987
« Reply #1 on: June 18, 2013, 06:47:45 AM »
Hello and welcome to the site.
What kind of riding will you be doing?
Are you having your engine built back to stock or are you modifying it?
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline dave hamm 76

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Re: kx 500 1987
« Reply #2 on: June 18, 2013, 08:40:26 AM »
thank you for the reply .... i will modifying the engine so it wont be kept stock  :evil: and i will be doin track work :)
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Offline dave hamm 76

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Re: kx 500 1987
« Reply #3 on: June 18, 2013, 08:43:05 AM »
would it be possible to put upside down forks on the 87 without having to much of a headache or keep the forks i have n jus refurbish them
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Offline motopunk

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Re: kx 500 1987
« Reply #4 on: June 18, 2013, 11:43:41 AM »
Quote from: dave hamm 76 on June 18, 2013, 08:43:05 AM
would it be possible to put upside down forks on the 87 without having to much of a headache or keep the forks i have n jus refurbish them

here is a pic that will answer your question... my 87 kx250 with the 41mm usd-fork .  you could also use the blue 43mm fork.
the steering-bearings are the same from 1983- 1991

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big 2 stroke bikes are weapons for real men, who don´t fear death or devil. ;O)
´83 kx250, ´87 kx250 (with 360 big bore), 87 kx500, ´93 kx500 sfc

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Offline dave hamm 76

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Re: kx 500 1987
« Reply #5 on: June 18, 2013, 11:58:23 AM »
Thank you so much I will look for a kx250 1990 front end :) ..... Don't surpose I can fit a 1990 kx250 rear wheel can I ? Am also after a rear frame cradle aswell coz this1 has been chopped up .... Any help wud be greatful as my whole runnin gear is knackered :(
Welcome
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Offline motopunk

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Re: kx 500 1987
« Reply #6 on: June 18, 2013, 06:28:23 PM »
the rear wheels fit ´86- 2002 models. in ´89 came the newer brakes. at the moment i use a ´93 rear wheel of my ´93 kx500sf, cause i have many ´19 tyres and still dont found the right 18 tyre that i´m looking for . 

i´m not sure if the 88-2004 kx500 subframe will fit to the ´87 , but i think it could solve the problem i case you dont find an 87 subframe.
86-2004 gearbox is all similar, ther were only changes in 88 came a diferent input shaft with the newer clutch. in 89 an faster second gear. all 89-2004 transmission parts are still available in new . you could also loking for good used parts, if you want to safe money.  :wink:

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big 2 stroke bikes are weapons for real men, who don´t fear death or devil. ;O)
´83 kx250, ´87 kx250 (with 360 big bore), 87 kx500, ´93 kx500 sfc

---  www.der-motopunk.de.tl  ---

Offline dave hamm 76

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Re: kx 500 1987
« Reply #7 on: June 18, 2013, 07:17:48 PM »
Thank you very much the info from you people has been like gold dust :) many thanks for the help :)
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Offline motopunk

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Re: kx 500 1987
« Reply #8 on: June 19, 2013, 07:20:05 AM »
Quote from: dave hamm 76 on June 18, 2013, 07:17:48 PM
Thank you very much the info from you people has been like gold dust :) many thanks for the help :)

 :-D... thats why we all are here for... 8-)
this site was a real great help with my k5-projekt.

   i builded my kx500sf from quite nothing started with a ´93 250 frame and bought all parts on ebay that could fit in any way and after 2 years, is it finished but with some carb-jetting -problems in the moment. all i need is a little bit more time to ride and testing. ...i love this bear power since i rode it the first time in november last year...  :mrgreen:

 before i started the build, i had only a great knowledge for 250´s  and here is is nobody around me that could help me, cause to less kx500 where sold here in germany over the years. in 2003 the last year for the big kx in europe were only 8 bikes in whole europe sold .
... if you always keep your eyes and ears open, you could learn new things every day...  8-)
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big 2 stroke bikes are weapons for real men, who don´t fear death or devil. ;O)
´83 kx250, ´87 kx250 (with 360 big bore), 87 kx500, ´93 kx500 sfc

---  www.der-motopunk.de.tl  ---

Offline dave hamm 76

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Re: kx 500 1987
« Reply #9 on: June 19, 2013, 08:50:00 AM »
Thank you motopunk :) ..... I sold my Rmz 450 09 to fund this 1987 basket case, I send the engine off this weekend for a total rebuild top to bottom by a bloke who only works on kx's for a full rebuild including portin n polishin, piston, clutch, bearings, seals the list is endless :( but I see a light at the end of the tunnel and my vision for a kx5 will be worthy of a magazine feature :) ...... My old forks are gettin refurbished even tho im puttin a kx250 upside downers on and Im buyin a new rear shock with all new swing arm bushes and the bike will be rolin on warp9 wheels :) (anodised green of course :) .... I will post a few pictures up once I have the basic rollin chassis together  :mrgreen:
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Offline motopunk

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Re: kx 500 1987
« Reply #10 on: June 19, 2013, 05:52:15 PM »
i cant wait to see pics of the bike in progress ...  8-)
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big 2 stroke bikes are weapons for real men, who don´t fear death or devil. ;O)
´83 kx250, ´87 kx250 (with 360 big bore), 87 kx500, ´93 kx500 sfc

---  www.der-motopunk.de.tl  ---

Offline dave hamm 76

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Re: kx 500 1987
« Reply #11 on: June 21, 2013, 01:16:59 PM »
Hello motopunk ... I av ordered my shock from the states n it's ere in 2weeks time, will get it serviced n powdercoated but my rear shock linkage is knackered, don't want get new bush's for it, is there a after market rear shock linkage I can get ? Av looked on the net n eBay but can't find anywhere but I did see a kx5 on ere with a after market 1on, many thanks David :) and my frame gets sent to the powdercoaters as soon as my shock gets ere  :evil: and in goin to polish my swing arm 2mirror finish  :evil:
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Offline motopunk

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Re: kx 500 1987
« Reply #12 on: June 21, 2013, 04:08:42 PM »
little question. where do you live? i´m from germany.

some links. maybe you can find there the parts,that you looking for  :-)
www.cmsnl.com
www.vmx-service.eu
www.eddy-twinshock.eu
www.athenaparts.com
www.nightmare-racing.com
www.oem-cycle.com
and ebay ...  :-D
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big 2 stroke bikes are weapons for real men, who don´t fear death or devil. ;O)
´83 kx250, ´87 kx250 (with 360 big bore), 87 kx500, ´93 kx500 sfc

---  www.der-motopunk.de.tl  ---

Offline dave hamm 76

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Re: kx 500 1987
« Reply #13 on: June 21, 2013, 08:43:30 PM »
You are a star motopunk thank you so much :) .... I'm in England, a place called biddulph in the midlands ..... Thanks anyway and I'm sorry to keep askin all these questions
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Offline motopunk

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Re: kx 500 1987
« Reply #14 on: June 21, 2013, 08:50:25 PM »
i´m only a little light in the big world... :-)

and better asking, before doing dumb things... 8-)
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big 2 stroke bikes are weapons for real men, who don´t fear death or devil. ;O)
´83 kx250, ´87 kx250 (with 360 big bore), 87 kx500, ´93 kx500 sfc

---  www.der-motopunk.de.tl  ---
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