BRC 510CC CONVERSION KIT KTM HSQ TPI 2017-2019

This BRC 510 cc TPI bolt-in conversion kit is intended to convert a compatible 2017-2019 KTM or Husqvarna 250/300 TPI donor engine into a 510 cc two-stroke engine. It is a custom conversion kit that uses the engine from the listed application and reuses parts from the original engine to complete the build, making it suitable for installations where the donor platform and retained original components form part of the finished engine assembly.

Features

• Conversion kit for the listed TPI donor platforms


• Reuses donor components including the complete transmission, clutch assembly, kicker assembly, water pump, intake, ignition and covers where possible


• Triple-blade pneumatic power valve for smooth, linear power delivery and stronger bottom-end response


• Accepts donor 5-speed or 6-speed transmission


• Compatible with kick start and electric start


• Decompression button to assist starting


• Integral counterbalance shaft to reduce vibration


• Designed around readily available service parts

Kit Contents

• Pipe


• Silencer


• Larger injectors for TPI applications


• Two Stroke Performance ECU flash with maps tailored to the supplied riding elevations and conditions


• Hose and clamps for MAP sensor relocation

Specifications

• Bore: 89 mm


• Stroke: 82 mm


• Displacement: 510 cc


• Compression ratio: 12.5:1


• Squish clearance: 1.47-2.00 mm


• Primary ratio: 2.25 (72:32)


• Claimed power output: 60+ hp


• Claimed torque output: 50+ ft lb


• Stated BRC500 carburettor reference: stock 36 mm or 38 mm

Important Notes

• Shipped on a single small pallet due to the value of the kit


• Custom kit; no warranty is implied or given


• Check all supplied parts before beginning assembly


• Due to US-EU model differences, modifications to mounts, exhaust or other supporting parts may be required


• A signed waiver confirming acceptance of these conditions is required before dispatch


• TPI installation requires relocation of the MAP sensor to the left head-stay bracket, using the supplied hose and clamps to connect to the fitting at the back of the donor-supplied cylinder fitting


• The throttle-body butterfly plate must be drilled for idle and off-idle correction: 3 mm below 5,000 ft (1,500 m) elevation and 5 mm above 5,000 ft


• Additional clearance must be made at the frame gussets near the exhaust manifold fasteners


• For TPI versions, 150:1 premix in the fuel tank is recommended in addition to the KTM oil-injection system, using 91 octane or higher fuel

Vehicle Fitments

• KTM 250 EXC TPI, 2017-2019


• KTM 300 EXC TPI, 2017-2019


• KTM 250 XC-W TPI, 2017-2019


• KTM 300 XC-W TPI, 2017-2019


• Husqvarna 250 TE TPI, 2017-2019


• Husqvarna 300 TE TPI, 2017-2019