Motorcycle Diagnostics & Electrical
Modern motorcycles are full of sensors, control modules and tightly integrated electrical systems. When something isn't right, you need a workshop that can diagnose it properly — not just throw parts at the problem.
Included in this service
- ▸ Fault code reading & interpretation
- ▸ Electrical fault finding
- ▸ Charging system testing
- ▸ Battery load testing & replacement
- ▸ Stator & regulator/rectifier diagnosis
- ▸ Wiring repairs & loom work
- ▸ Sensor testing & replacement
- ▸ Intermittent fault tracing
South East Melbourne
Based in Cranbourne — looking after motorcycle riders from across the wider region:
Motorcycle diagnostics done right
Whether it's a check-engine light, a no-start, an intermittent stall or a strange electrical gremlin, I take a methodical approach to motorcycle diagnostics. Riders from Cranbourne, Clyde, Berwick, Narre Warren, Pakenham and across south-east Melbourne bring me their hard-to-diagnose problems precisely because I don't guess.
I start with a clear description of the issue from you, then move through a structured process — fault code reading, voltage and resistance testing, signal checks at the relevant sensors and a thorough visual inspection — until the root cause is found and confirmed.
Charging, battery & starting systems
A flat battery is usually a symptom, not the cause. I carry out full charging system testing including battery load testing, charging voltage measurement at multiple RPMs, stator output testing and regulator/rectifier diagnosis. If your bike has been killing batteries, struggling to start or going flat on standby, I'll find out why.
I also handle starter motor testing and replacement, kill switch and ignition switch faults, and side-stand / clutch interlock issues.
Wiring, sensors & ECU faults
Wiring issues — chafed looms, water-affected connectors, broken pins, dodgy aftermarket installs — cause a huge proportion of motorcycle electrical problems. I trace, repair and rebuild damaged sections of loom properly, using correct gauge wire, heat-shrink and OEM-spec connectors where possible.
On the sensor side I test and replace crank and cam position sensors, throttle position sensors, MAP sensors, O₂ sensors, speed sensors and ABS sensors — using live data wherever the platform allows.
Honest diagnosis, no parts cannon
I charge for diagnostic time, not for the parts I replace — which means I have no incentive to keep swapping components in the hope of finding the fault. You get a clear explanation of what's wrong, what it'll cost to fix, and what the options are.
Common questions
How much does a motorcycle diagnostic check cost?+
Diagnostic time is billed by the hour. Most faults are identified within the first hour. I'll give you a clear estimate up front.
Can you read fault codes for my bike?+
I have diagnostic tools that cover most modern Japanese and European motorcycles. If your platform requires specialist equipment I'll let you know up front.
My battery keeps going flat — what's wrong?+
Could be the battery itself, the charging system, a parasitic drain or a wiring fault. A proper diagnosis will identify the actual cause rather than guessing.
Can you rebuild damaged wiring looms?+
Yes — I repair damaged sections of loom using correct gauge wire, soldered joints and heat-shrink for a clean, durable repair.
Do you fix intermittent faults?+
Yes — intermittent faults are my specialty. They take patience and a methodical approach, both of which I bring to every job.
Service enquiry
Send me a quick message and I'll get back to you with a quote or booking time. After hours and weekend appointments are available.