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Author Topic: 1992 KX500 Build  (Read 17237 times)

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Offline MMVTwin

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Re: 1992 KX500 Build
« Reply #15 on: August 12, 2017, 05:28:00 PM »
3rd gear out put sprocket needs replacing



Sandblaster I cant work out what ya did to make pictures show

From Sandblaster... You need to have the brackets on either side of your link with the characters as shown below.
on this post, click on "modify" and look at your link

[ img]   Your link here with no spaces    [/img ]
« Last Edit: August 13, 2017, 03:06:58 AM by sandblaster »
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Offline sandblaster

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Re: 1992 KX500 Build
« Reply #16 on: August 13, 2017, 03:07:38 AM »
Take a look at your last post..

And, while you have the gear box apart, replace ALL the snap rings...  8-)
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline MMVTwin

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Re: 1992 KX500 Build
« Reply #17 on: August 13, 2017, 05:51:20 AM »
Quote from: sandblaster on August 13, 2017, 03:07:38 AM
Take a look at your last post..

And, while you have the gear box apart, replace ALL the snap rings...  8-)

yes read that on another of your threads so that and bevelling the dogs will happen

any one out there got a 3rd input gear laying around????
« Last Edit: August 13, 2017, 07:26:43 AM by MMVTwin »
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Offline sandblaster

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Re: 1992 KX500 Build
« Reply #18 on: August 13, 2017, 06:41:03 AM »
« Last Edit: August 13, 2017, 06:42:56 AM by sandblaster »
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline Rosset racing

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Re: 1992 KX500 Build
« Reply #19 on: August 13, 2017, 05:57:01 PM »
Sandblaster I tried to send you a pm don't mean to jump in to your thread I'm new here but have been riding and working on 92 kx5 for 14 years. I just had a question about the kx5 center piston window mod from someone who has road with oneach first hand. Did the mod help you bike? Thx
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Offline Rosset racing

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Re: 1992 KX500 Build
« Reply #20 on: August 13, 2017, 06:00:19 PM »
I'm in the middle of a complete build as well any info is much appreciated
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Offline MMVTwin

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Re: 1992 KX500 Build
« Reply #21 on: August 13, 2017, 11:48:54 PM »
Quote from: Rosset racing on August 13, 2017, 05:57:01 PM
Sandblaster I tried to send you a pm don't mean to jump in to your thread I'm new here but have been riding and working on 92 kx5 for 14 years. I just had a question about the kx5 center piston window mod from someone who has road with oneach first hand. Did the mod help you bike? Thx

ask away mate
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Offline MMVTwin

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Re: 1992 KX500 Build
« Reply #22 on: August 13, 2017, 11:57:57 PM »
Crank measurements all within spec
Con Rod side clearance is .43mm (new ..40-.50)
Big end radial clearance is .03mm ( new .034 -.047)



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Offline MMVTwin

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Re: 1992 KX500 Build
« Reply #23 on: August 13, 2017, 11:59:56 PM »
cant seem to tell what purpose this serves and do I need to worry about a repair

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Offline sandblaster

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Re: 1992 KX500 Build
« Reply #24 on: August 14, 2017, 03:09:14 AM »
Hey Captain  :lol:
That broken part is for the kick start return spring.
Have it welded.
But before you do anything get a piece of coat hanger or heavy wire that fits the hole.
Stick the wire in the hole.
That way when it is tig welded you don't deform the hole size or plug it up  :-o
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline sandblaster

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Re: 1992 KX500 Build
« Reply #25 on: August 14, 2017, 03:17:20 AM »
Quote from: Rosset racing on August 13, 2017, 05:57:01 PM
Sandblaster I tried to send you a pm don't mean to jump in to your thread I'm new here but have been riding and working on 92 kx5 for 14 years. I just had a question about the kx5 center piston window mod from someone who has road with oneach first hand. Did the mod help you bike? Thx

Hello.
Yep, I got the PM late last night but didn't respond because I was beat.
I have rode both pistons.
It is highly unlikely that you can feel a difference.
The biggest reason for the mod was cooling.
Stewart (The last speed record holder) developed this mod for the KX500 to decrease temps around the crown of the piston at sustained high speed WOT runs.
It does not make any HP but it will help keep the HP at it's peak longer.
There are other potential benefits such as better lubrication of the wrist pin ect.
So, should you window your piston?
Mmmm... for most it isn't required but it's not going to hurt a thing if you do but don't really need it.
On my next build I will be putting some holes in that area, but not a big hole  :lol:
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline MMVTwin

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Re: 1992 KX500 Build
« Reply #26 on: August 14, 2017, 10:35:57 AM »
Quote from: sandblaster on August 14, 2017, 03:09:14 AM
Hey Captain  :lol:
That broken part is for the kick start return spring.
Have it welded.
But before you do anything get a piece of coat hanger or heavy wire that fits the hole.
Stick the wire in the hole.
That way when it is tig welded you don't deform the hole size or plug it up  :-o

Rodger that
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Offline Rosset racing

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Re: 1992 KX500 Build
« Reply #27 on: August 14, 2017, 03:20:26 PM »
Thx blaster i really appreciate the response and info! Can't wait too ride the old girl again it's been too long. Looks like you got a lot going on with your own bike ill leave u too it.
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Offline sandblaster

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Re: 1992 KX500 Build
« Reply #28 on: August 14, 2017, 04:31:54 PM »
Quote from: Rosset racing on August 14, 2017, 03:20:26 PM
Thx blaster i really appreciate the response and info! Can't wait too ride the old girl again it's been too long. Looks like you got a lot going on with your own bike ill leave u too it.

Bikes or no bikes.... I always have a lot going on Lol     8-)
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline Motorrad

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Re: 1992 KX500 Build
« Reply #29 on: August 15, 2017, 10:25:10 AM »
Sad. I couldn't remember what that hole was for.   Im losing it.
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