Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)
Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)
Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)
Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)
Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)
Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)
Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)
Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)
Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)
Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)
Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)
Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)
Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)
Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)
Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)

Electric Start Kit – YZ02 – Yamaha YZ65 (2018–2026)

Game changer for kids racing 85cc
  • No bike modifications
  • Self-charging lithium battery
  • 2.8kg with battery
  • Oil free gear design
Regular price $1,099.00
  • Free worldwide shipping


Electric Start Kit 85cc

Plug & Play • Self-Charging Battery  • Race-Ready

Designed for riders who want effortless starts without compromising performance, this electric start kit delivers reliable, starts for 85cc motocross bikes. With no engine modification required.

The system features an integrated self-charging lithium battery that automatically recharges while riding and enters sleep mode when fully charged, ensuring virtually zero impact on engine performance. With a total power draw of less than 1%, engine response remains untouched — while low-end torque and throttle control are improved thanks to the optimized flywheel mass.

Cold starts are quick and controlled. Warm starts can be done in gear, ideal for race restarts. The original kick-starter remains fully functional at all times as a backup.

An oil-free gear design reduces extra weight and maintenance. The integrated Battery Management System (BMS) protect against over-charge, over-discharge, and short-circuit, ensuring long-term reliability for the battery 

For competitive use, the charging system can be disconnected or fully removed, allowing the battery alone to deliver up to 100 starts, more than enough for a full race day or event.

Installation is fully plug & play, with model-specific video instructions accessible via QR code.

Key Features

  • Optional waterproof fast-charge cable available
  • Original kick-starter fully retained
  • Built-in Battery Management System (BMS)
  • Oil-free, low-maintenance gear design
  • Optimized flywheel mass for improved ride control
  • No power draw (<1%)
  • Automatic charge → sleep → recharge logic
  • Plug & play installation, no engine or frame modificatio
  • Integrated self-charging lithium battery

Fitment

  • Yamaha YZ65 2018-2026

What’s Included

  • LITHIUM BATTERY (Pre-installed in the battery box) 
  • ELECTRONIC CONTROL UNIT (ECU) ASSEMBLY & WIRING HARNESS
  • STARTER MOTOR
  • START SWITCH
  • CNC HOUSING & COVER (Pre-installed with bearings and stator coils)
  • REUSABLE GASKET
  • BENDIX GEAR
  • MAIN GEAR (Pre-installed with magnet ring)
  • SPECIAL TOOLS (For flywheel locking and Main gear installation)
  • CHAIN GUARD
  • FULL HARDWARE KIT (All necessary screws and nuts)
  • USER MANUAL & OXGMOTO STICKERS

WHY and WHO is it for?

It’s ideal for parents upgrading bikes for youth riders, beginners who want easier and more consistent starting, and competitive racers who need fast, stress-free restarts during training or racing. It’s also a smart upgrade for anyone converting a stock 85cc motocross bike into a more rider-friendly, race-ready machine.

Shipping Information

  • Free worldwide express shipping on all orders
  • Orders are processed within 1-5 business days
  • Delivery time: 3–10 business days, depending on location
  • Tracking number provided for every order

Important

  • Import duties and local taxes may apply depending on destination
  • No hidden fees at checkout

Click here to view all FAQs

Components:

Cover (6061-T6 Aluminum) – With OCS charging coil. Includes screws for installation.

Maincase (6061-T6 Aluminum) – Includes central tool (PA) and bendix gear made from 40CrMo steel. Screws included for installation.

Main Gear with OCS Magnet Ring – Assembled with aluminum and 40CrMo steel. Includes fasteners for installation.

Lithium Battery (2A, 430g) – Housed in a 5052 aluminum case for lightweight and durable power storage.

Control Unit – Includes relay for power switching, smart rectifier for AC to DC conversion, and main cable. Mounted on a 5052 aluminum bracket. Includes screws for installation.

Starter Motor – Constructed from steel and aluminum for engine ignition. Includes mounting hardware for secure installation.

Negative Cables – Ring terminals for secure electrical grounding in the starter system, with a mounting screw.

0.2mm Thick Gasket – High-quality material for sealing engine components. Resistant to heat, oil, and water for long-lasting performance under demanding conditions.

Flywheel Lock Tool (304 Stainless Steel) – For securing the flywheel during maintenance or assembly to ensure proper torque application.

Start Button – Used to activate the starter system, with wiring and mounting hardware included.

After multiple inquiries about the Electric Starter Kit’s impact on performance, we conducted a dyno test to evaluate power and torque with the kit installed, both with a full and empty battery. The results confirm that our Electric Starter Kit maintains near-stock power and torque, ensuring consistent performance without significant power loss, regardless of the battery's charge level.

Stock Performance:
The bike’s stock configuration delivers a peak power of 19.32 PS and torque of 12.00 N.m. Providing the baseline performance for comparison.

Performance with Full Battery:
With the Electric Starter Kit installed and a fully charged battery, the bike maintains a peak power of 19.55 PS and torque of 11.79 N.m. Showing no significant power loss compared to the stock setup.

Performance with Empty Battery:
With the Electric Starter Kit and an empty battery, the peak power drops slightly to 19.41 PS and torque to 11.71 N.m. Demonstrating only minimal performance reduction despite the battery in charging mode


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