TRX250r.org

Author Topic: Kx500-r  (Read 16848 times)

Offline twilson

Kx500-r
« on: February 01, 2015, 06:37:05 PM »
Thought I would shed some light on a project my brother in law(troybilt) and I are working on, and are pretty excited about. We will be using a gusseted '88 250r frame, and the motor out of an '86 KX500 that I recently acquired for the power plant. I took the KX for a few laps around the property prior to dis-assembly, and the torque is unbelievable on this thing. It has a scary amount of power at every RPM range. We gusseted the frame about a month ago, and were able to strip the KX down and pull the motor last weekend. We sat the engine in the frame, and it fits surprisingly well. We will be utilizing the fabrication skills of Robl Engineering for the motor mounts, as obviously the stock ones aren't going to cut it. I will attach a few pictures of the frame we started with, the gusset kit installed, and the motor just sitting in the frame with an RE custom aluminum fuel tank mocked up. I hope to have more updates soon. Thanks!

Offline Hawaiiysr

Kx500-r
« Reply #1 on: February 01, 2015, 11:03:32 PM »
Looking forward to the progress updates

Offline troybilt

Kx500-r
« Reply #2 on: February 02, 2015, 06:26:16 AM »
Subscribed, LOL!
Elsinore 496cc Saber

Offline ytman

Kx500-r
« Reply #3 on: February 02, 2015, 07:14:32 AM »
Braaaaapp

Offline Tbone07

Kx500-r
« Reply #4 on: February 02, 2015, 10:37:54 AM »
i remember reading a dirt bike article about the KX500. I'll have to dig it up because the way they described the power was awesome lol
LED Performance 350R
Laegers-JD Performance-GThunder-HLS-PEP-HiPer-GBC

RIP Laz

Offline twilson

Kx500-r
« Reply #5 on: February 02, 2015, 10:41:00 AM »
Haha yep! There was one written recently. In one of the first sentences, they called it "un-rideable". They weren't far off. What little time I spent riding it was mostly on one wheel.

Offline Pumashine

Kx500-r
« Reply #6 on: February 02, 2015, 11:11:30 AM »
Great hybrid you are working on.Your gonna have alot of power in there. What length swing arm were you considering going with?
Puma 408, Puma 431,  Pilot 412, Puma 431, Mini-tooth 486 Trx450r
89mm  Mini tooth Shearer in frame pipe chromed! With Cascade  Q

Offline twilson

Kx500-r
« Reply #7 on: February 02, 2015, 11:13:44 AM »
For now we are planning on a stock length '05 450r swingarm. We want to keep it as maneuverable as possible. Thanks for the props.

Offline Tbone07

Kx500-r
« Reply #8 on: February 02, 2015, 11:31:09 AM »
I know it was 62HP in stock form lol. It should be controllable in a quad frame with the stock length swinger
LED Performance 350R
Laegers-JD Performance-GThunder-HLS-PEP-HiPer-GBC

RIP Laz

Offline twilson

Kx500-r
« Reply #9 on: February 02, 2015, 11:32:28 AM »
We had the same thought Tbone07.

Offline beobe99

Kx500-r
« Reply #10 on: February 02, 2015, 12:13:13 PM »
Nice!, can't wait to see some more progress that's for sure! What's the plans for looks? I envision light gray frame, green plastics, and a custom decal kit to resemble the KX's?

Regardless, thing is going to be beast, love the creativity.

Offline twilson

Kx500-r
« Reply #11 on: February 02, 2015, 12:17:57 PM »
Can't be giving the looks away just yet ;) but know that we have a SWEET idea in mind. I'll keep everyone posted along the way. Thanks for the support.

Offline broken1

Kx500-r
« Reply #12 on: February 04, 2015, 07:38:11 PM »
Cool build. The KX500 is an animal to say the least. In the late 90's a friend of mine had a 93 KX500 that he let me spend a couple hours on at Sand Lake. After I was comfortable on it I went to the hill & smoked everything there, including 2 alcohol banshee's. I was catching them at half hill after I got it straightened out & was passing them like they were in reverse. Definately a wild ride.... Look forward to seeing how this turns out.

Offline 2keaton11

Kx500-r
« Reply #13 on: February 25, 2015, 06:13:07 PM »
What are your plans for the pipe? I have a friend selling an 87 kx500 cheap I had thought about this same idea for a 250r.

Offline twilson

Kx500-r
« Reply #14 on: February 25, 2015, 07:20:59 PM »
The pipe will definitely be original. Our plans are to use a portion of the k5 head pipe, and the rest of it will be hand coned by Robl Engineering.

 

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