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Maintenance · 79Bike · Sur-Ron · Talaria

How to wash an electric dirt bike without damaging the electronics

Easy30 minUpdated 1 November 2026
How to wash an electric dirt bike without damaging the electronics

Electric dirt bikes are built for mud and rain, not for a pressure washer 10 cm from the connectors. Half the electrical faults we see in the workshop after winter start with an overly aggressive wash. Here's how to wash effectively and safely.

Pressure washers: the 50 cm rule

A pressure washer isn't forbidden, but it's dangerous if misused: it forces water past the seals of connectors, the controller, the display, bearings and the steering head. If you use one: wide fan, low pressure, at least 50 cm away, and never aimed directly at the motor, controller, battery, display, switchgear, wheel bearings or steering head. A garden hose remains the safest option.

Before getting it wet

  • Bike off, key removed, battery locked in place (or removed for a thorough clean).
  • Let the motor, battery and brakes cool after the ride.
  • Let heavy mud dry for a few minutes, then knock it off with a brush: it comes off far more easily than by drowning it.

The three-stage method

  1. Gentle pre-rinse with the hose, top to bottom.
  2. Motorcycle shampoo (pH-neutral) applied with a sponge or sprayer, soft brush for rims and swingarm. Avoid harsh degreasers on hoses and seals.
  3. Gentle rinse then dry: air blower or microfibre cloth, focusing on connectors and spots where water pools.

After washing: three life-saving steps

  • Lube the chain straight away: a washed, unlubed chain rusts overnight.
  • Brake several times at low speed to dry the discs.
  • Let it dry under cover before charging, and check the connectors are dry.

If the bike won't turn on after washing, see our guide electric dirt bike won't turn on.

Genuine 79Bike Falcon Pro / GT wiring harness
Wiring harness: pressurised water in connectors is the number-one cause of faults after washing.

Tools you need

  • Garden hose (or pressure washer on a wide fan)
  • pH-neutral motorcycle shampoo
  • Soft brushes
  • Microfibre cloths or air blower
  • Chain lube

Step-by-step procedure

  1. 1

    Prepare

    Bike off and cool, key removed, battery locked or removed.

  2. 2

    Remove heavy mud

    Brush off the thick mud once it has dried slightly.

  3. 3

    Pre-rinse

    Gentle rinse with the hose, top to bottom, without aiming at the electronics.

  4. 4

    Wash

    pH-neutral shampoo, sponge and soft brushes.

  5. 5

    Rinse and dry

    Gentle rinse, then dry with microfibre or an air blower, connectors included.

  6. 6

    Lube and check

    Lube the chain, dry the brakes with a few slow stops, check there's no moisture in the connectors.

Useful genuine parts

In stock, shipped in 3–10 business days.

FAQ

Is my electric dirt bike waterproof?+

It withstands splashes, rain and sensible water crossings depending on its components' protection rating (the Falcon GT battery is rated IP67, for example). But no rating protects against a pressure jet fired point-blank at a seal.

Can I use engine degreaser?+

Only on the chain and sprocket, sparingly. Keep it off hoses, fork seals, plastics and brake discs.

Should I remove the battery to wash?+

Not required for a gentle hose wash if it's securely locked. For a deep clean, removing it is a simple precaution.

Key takeaways

Let the mud dry, wash gently, never aim at the electronics or bearings, dry thoroughly and lube the chain straight away. Your bike will repay you in reliability.

Need a hand?

Our workshop in Toulouse Sud (France) services 79Bike, Sur-Ron and Talaria. Send us a photo or video of the problem.

Contact the workshop

Related guides

These guides are for information only. If in doubt about a safety-critical part (brakes, steering, wheels), have a professional do the work. Always follow the manufacturer's manual.