BLS Capacitor Kit For TPI & 4T FI


KTM and Husqvarna TPIs are great bikes, but one thing to be aware of is the engine will not run if the battery is dead (Note- some 2020 models are fitted with a capacitor stock, see details below). For example if you’re out riding and the battery dies you will not be able to continue your ride.

The Tokyo Offroad BLS (Battery Less Starter) Capacitor Kit can used with KTM and Husqvarna TPI 2-strokes and allows the bike to start and run when the battery is dead, or removed. Note that if the battery has died the electric start will not work even if the BLS Capacitor kit has been installed. To start the engine with the BLS Capacitor kit installed it must be kick (select PreCharge Harness option), or bump/hill started.

Warning- Note that the BLS Capacitor stores electrical charge internally once it has been connected to the motorcycle battery, or charging system. If the BLS Capacitor is uninstalled be sure to safely discharge it (E.g. a 12V light bulb could be used) and avoid shorting the cable terminals together.

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Model note- 2020 KTM SXF/XCF/XC and Husqvarva FC/FX/TX models have a factory fitted capacitor stock which will allow these bikes to be bump/hill started and run if the battery is dead. However, the 2020 KTM XC-W/XCF-W/EXC-F/EXC and Husqvarna TE/FE/FES do not have a capacitor fitted stock and require a BLS capacitor to bump/hill start and run if the battery is dead.

Two options are available: 1) BLS Capacitor kit and 2) BLS Capacitor Kit with PreCharge Harness. The PreCharge harness option allows connection of a 9V battery (not included) to precharge the BLS Capacitor and allow more consistent kick starting. A diode is used in the harness to protect the 9V battery the engine is running. It is recommended that a new 9V battery is kept in your backpack, or airbox and connected if the motorcycle battery dies and kickstarting is required. The PreCharge Harness is not required for TPI motorcycles which do not have a kickstarter fitted (E.g. 2020 TPI models) and can be hill/bump started easily without the PreCharge Harness. The BLS Capacitor kit includes a capacitor assembly (50V, 105degC rated capacitor, dipped to weatherproof, with wiring and 6mm terminals) and zip tie to secure the capacitor during installation and i. The capacitor has two wire connections: Red must be connected to the battery +ve terminal and Black must be connected to the battery ground terminal. The BLS capacitor may be installed permanently, or temporarily during a battery issue. Following a start the engine will run normally even if the motorcycle battery is totally dead, or removed. The electric start will not function when the battery is dead, or removed. Weight of the kit is approximately 65g.

Additional information

Weight 70 g

BLS Cap, BLS Cap With PreCharge