BRC YZ500 Engine Conversions
YZ500 Conversions
By Garage Eleven
We convert Yamaha YZ250 two-strokes into running BRC YZ500 machines — built with proper fitment, mechanical care, clean setup, and the raw 500cc two-stroke feel these bikes are known for.
Fits Yamaha YZ250 Two-Stroke Donor Bikes From 2000–2026
What It Is
The Modern 500 Two-Stroke YZ
The BRC YZ500 conversion takes Yamaha’s proven YZ250 two-stroke chassis and turns it into a serious 500cc machine. You keep the sharp, familiar YZ handling — but add the torque, hit, and big-bore character that only a 500 two-stroke delivers.
This is not a cosmetic build or a sticker-kit upgrade. It is a proper engine conversion using the BRC Racing platform, fitted into your donor YZ250 and finished as a running motorcycle.
Garage Eleven handles the engine fitment, required conversion work, setup, jetting, and final running checks so the bike leaves here properly assembled and ready to ride.
Built for riders who want the real 500cc two-stroke experience in a modern Yamaha YZ chassis.
Garage Eleven Conversion Process
BRC 500 Power, Fitted Properly
Our YZ500 conversion service is built around doing the mechanical work correctly. You supply a suitable Yamaha YZ250 donor bike, and we fit the BRC 500 engine conversion, complete the required installation work, get the bike running, and carry out the final setup.
01
Donor Bike Check
We confirm the donor YZ250 platform is suitable for the conversion and identify anything obvious that needs attention before the 500 engine is fitted.
02
BRC Engine Fitment
The BRC 500 conversion is installed with proper mechanical care, alignment, fitment checks, and attention to detail throughout the build.
03
Running Setup
Once assembled, the bike is started, checked, jetted, and set up so it leaves as a running YZ500, not just a pile of parts bolted together.
Donor Bike Compatibility
2000–2026 YZ250 Two-Strokes
The BRC YZ500 conversion platform is suited to Yamaha YZ250 two-stroke donor bikes from 2000 through to 2026.
That gives riders a wide range of donor options — from clean older steel-frame builds through to later-model aluminium-frame YZ250s.
- Yamaha YZ250 two-stroke donor required
- Compatible from 2000–2026 model years
- BRC 500 engine conversion fitted
- Bike completed as a running conversion
Conversion Options
YZ500 Conversion Pricing
Garage Eleven offers the YZ500 as a professional BRC engine conversion service using your Yamaha YZ250 two-stroke donor bike. We handle the fitment, setup, jetting, running checks, and final workshop handover so the bike leaves as a properly completed conversion.
Convert Your YZ250
$18,500
You supply the donor bike
We fit the BRC YZ500 conversion to your Yamaha YZ250 two-stroke donor bike and complete the bike as a running conversion.
- BRC YZ500 engine conversion fitted
- Required installation work completed
- Carb setup and jetting checked
- Bike started, checked, and test run
- Suitable for 2000–2026 YZ250 two-strokes
BRC YZ500 Kit Supply
$15,990
Kit supply only
For customers wanting to handle their own conversion, we can supply the BRC YZ500 kit. Australia-wide shipping available.
- BRC YZ500 conversion kit
- For Yamaha YZ250 two-stroke platforms
- Suitable for experienced builders
- Shipping available Australia-wide
- Contact us to confirm availability
The Result
Raw 500cc Two-Stroke Character
A YZ500 is not for everyone — and that is exactly the point. It is a big-bore two-stroke with serious torque, serious presence, and a power delivery that feels completely different to a standard 250.
500cc
Big-Bore Two-Stroke
Built around the BRC 500 platform for riders chasing the full 500cc two-stroke experience.
YZ
Modern Yamaha Chassis
Uses the Yamaha YZ250 two-stroke chassis, keeping that familiar lightweight motocross feel.
G11
Garage Eleven Built
Fitted, checked, set up, and completed by a workshop that actually lives and breathes two-strokes.
Build Gallery
YZ500 Details
A closer look at the Garage Eleven YZ500 conversion platform, BRC components, pipe fitment, and finished bike details.
Want To Build A YZ500?
If you have a Yamaha YZ250 two-stroke donor bike and want the BRC YZ500 conversion fitted properly, get in touch with Garage Eleven.
Pricing and availability may change depending on BRC kit supply, donor bike condition, freight,
parts availability, and the final scope required. Contact Garage Eleven to confirm current details.