BRC 510CC CARB CONVERSION KIT FOR HUSQVARNA 250/300 2017-2018

This BRC carburettor conversion kit is intended to convert a 2017-2018 Husqvarna TE 250 or TE 300 donor engine to a 510 cc two-stroke configuration for carburetted applications. It is not a complete engine; it is a conversion kit that must be assembled using parts from the listed donor engine, reusing assemblies such as the transmission, clutch assembly, kickstarter assembly, water pump, intake, ignition and covers where possible. The kit is supplied for engine conversion work rather than as a ready-to-run engine assembly.

Features

• Converts the listed donor engine to a 510 cc configuration


• Pneumatic power-valve system for smooth, linear power delivery


• Compatible with both kick start and electric start operation


• Decompression button provided to assist starting


• Integral counterbalance shaft to reduce vibration


• Designed to use the donor bike's existing carburettor


• Retains the OEM upper cylinder-head hose and OEM right-side water-pump hose, with the radiator link hose replaced by a supplied bent hose


• Designed around readily available service parts

Kit Contents

• Pipe and silencer


• Machined crankcases and covers


• Machined cylinder and head


• Exhaust manifold


• Balance shaft assembly


• Pneumatic power-valve components


• Decompression valve


• VForce 4R reed cage


• Additional fasteners required for the conversion, while most donor-engine fasteners and dowels are reused

Specifications

• Bore: 89 mm


• Stroke: 82 mm


• Displacement: 510 cc


• Compression ratio: 12.5:1


• Squish: 1.47-2.00 mm


• Primary ratio: 2.25 (72:32)


• Quoted output: over 60 hp and over 50 ft-lb torque


• Transmission compatibility: donor 5-speed or 6-speed


• Carburettor compatibility: OEM 36 mm or 38 mm carburettor


• Service-part format: Honda CR500-style piston and connecting-rod package, KTM bearings and seals, Cometic-made gaskets


• Fuel requirement for carburetted versions: minimum 91-octane fuel


• Premix ratio for carburetted versions: 50:1, with 32:1 recommended for desert or snowbike use

Important Information

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


• No warranty is implied or given due to the custom nature of the kit


• Check all parts are correct before beginning assembly


• US and EU model differences may require modifications to mounts, exhaust or other supporting parts


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


• Donor engines from 2013 onward require a stiffer clutch diaphragm spring to prevent clutch slip with this conversion

Vehicle Fitments

• Husqvarna TE 250, 2017-2018, carburetted models


• Husqvarna TE 300, 2017-2018, carburetted models