'03 KX125 KDX Hybrid Build 2018

Discussion for swapping a KDX motor in a MX frame...

'03 KX125 KDX Hybrid Build 2018

Postby rexemouse » 06:23 am May 16 2018

Hello,

I finally finished my winter project, a 2003 KX125 hybrid build.
Similar builds have been well covered, so I just added a couple build pics like the swingarm modificication and airbox. This site had all the info i needed for this project and this bike came out perfect.
This is my second hybrid, the first was a '95 CR125. Its hard to only build one of these, KDX-MX bikes are the ballz. :supz:

Open forum for any questions.

Thanks,

JB


2003 KX125
1998 KDX200 Engine Rebuilt
FMF Gnarly Pipe and Powercore Silencer
2007 KX250F Showa 47mm Forks & Triple
2001 KX125 Rear Shock
Fasst Flexx Handlebars
GPI Oversized Radiators
Clarke 3.1 Gal Oversized Tank
SDG Tall Seat
Tusk Impact Front Rim w/ Pirelli MT16
Tustk Impact Rear 18" w/ Shinko 525 Cheater
WER Steering Dampener
Polisport MMX Head Lamp
Polisport Plastics
Fastway Pegs
Probillet Kickstand


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Re: '03 KX125 KDX Hybrid Build 2018

Postby bufftester » 03:11 pm May 16 2018

Nicely done! I have to agree that the KX/KDX is a great bike to ride, really takes the best of both bikes and works well.
2001 KX/KDX 220 Hybrid, 1999 KLX 300, 1995 RMX 250, 1992 GSX-R600, 1993 GSX-R750, 1994 GSX-R750, 1995 GSX-R750
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Re: '03 KX125 KDX Hybrid Build 2018

Postby Jason » 03:46 pm May 16 2018

Looks great! Congratulations. If you want, a KX cable guide can be bought that fits on the triple clamp bolts.
Thank you, Julien D for all your hard work!

PLEASE! Do not "dip" PWK Keihin carbs in Berryman's to clean them! It will damage the internal o-ring (jet block gasket).
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Re: '03 KX125 KDX Hybrid Build 2018

Postby bufftester » 08:50 pm May 16 2018

It's on there, just not bolted on but hanging down at the bottom at the top of the fork protector.
2001 KX/KDX 220 Hybrid, 1999 KLX 300, 1995 RMX 250, 1992 GSX-R600, 1993 GSX-R750, 1994 GSX-R750, 1995 GSX-R750
Jetting Guide | Scheckaet's Newb Guide | Suspension Goodness
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Re: '03 KX125 KDX Hybrid Build 2018

Postby Jason » 08:58 pm May 16 2018

Ah, OK. I see it now. I was wondering if it was an "almost ready to ride" pic.
Thank you, Julien D for all your hard work!

PLEASE! Do not "dip" PWK Keihin carbs in Berryman's to clean them! It will damage the internal o-ring (jet block gasket).
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Re: '03 KX125 KDX Hybrid Build 2018

Postby doakley » 10:21 pm May 17 2018

What fork protectors did you use? I see you have the brake hose attached to the fork guard with a KDX style clamp.
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Re: '03 KX125 KDX Hybrid Build 2018

Postby B737driver » 12:37 am May 18 2018

Nicely done from a fellow hybrid owner/builder...get the suspension set up right for your riding conditions and the orange bikes will be jealous.
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Re: '03 KX125 KDX Hybrid Build 2018

Postby rexemouse » 07:33 am May 19 2018

The fork guards are either UFO or Polisport, but im not totally sure. The forks and guards were a freebie from a friend. The clamp is from a kdx, but i got it to work well. The top cable guide is from the 03 KX, and i just made a bracket to mount it. The brake line seems to stay put and defects well with the forks.

I serviced the suspension, but haven't touched the valving. I think the forks are going to beat me up a bit this season, but i doubt its gonna wipe the smile off my face. Hoping to dial in the suspension next year, along with some RB mods.

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