Pulsar 135 LS Speedometer - Bajaj's Liquid Cool Speedo

The Pulsar 135 LS Instrument Cluster

The Bajaj Pulsar 135 LS holds a special place in Pulsar history as the first Bajaj motorcycle to feature liquid cooling and four-valve technology. Its instrument cluster reflects the bike's sporty character with a distinctive twin-pod design. The speedometer and tachometer are housed in separate pods, giving the dashboard a premium, aggressive look that was unique in the 135cc segment when the bike was launched.

Features of the Pulsar 135 LS Speedometer

  • Analog Speedometer: Large, easy-to-read dial with markings up to 140 km/h. The white dial face with black numerals and orange backlight is iconic Pulsar styling.
  • Analog Tachometer: Separate pod with a redline at 10,000 RPM. The tachometer needle matches the speedometer needle design.
  • Digital Odometer and Trip Meter: An LCD screen within the speedometer pod displays the odometer and two trip meters.
  • Fuel Gauge: Analog fuel gauge integrated into the speedometer pod.
  • Pass Light Switch: Integrated into the left handlebar switchgear for flashing headlights.
  • Indicator Lights: Neutral, high beam, turn signals, battery charge, side stand indicator, and engine check light.

Common Problems

  • Speedometer Cable Failure: The most frequent issue on the 135 LS. The cable is known to wear out faster than on other Pulsar models, possibly due to the engine's higher vibration levels. Cable replacement costs Rs. 100 to Rs. 200.
  • Tachometer Needle Sticking: The tachometer needle can stick at high RPMs, especially in older models. This is typically caused by dried-out lubricant in the tachometer mechanism.
  • LCD Display Issues: The digital odometer LCD can develop missing segments or become faint over time. This is a common issue across all Pulsar models of this era.
  • Backlight Failure: The orange LED backlight in the speedometer pod can dim or fail partially.
  • Condensation Inside Pods: Moisture ingress into the speedometer and tachometer pods causes fogging and can damage the internal electronics.

Speedometer Cable Replacement

The speedometer cable on the Pulsar 135 LS is model-specific. Here are the details:

  • Genuine Bajaj Cable: Part number is specific to the 135 LS. Cost is Rs. 120 to Rs. 200.
  • Aftermarket Cable: Compatible cables are available for Rs. 60 to Rs. 100. Ensure you get the correct length for the 135 LS.
  • Drive Gear: The plastic drive gear at the front wheel hub can also fail. Cost is Rs. 80 to Rs. 150.

Complete Speedometer Assembly Pricing

If the entire speedometer assembly needs replacement:

  • Genuine Bajaj Speedometer Assembly (Complete with tachometer): Rs. 1,500 to Rs. 2,500 depending on availability. The 135 LS was discontinued, so new old stock is becoming scarce.
  • Used / Salvage Assembly: Rs. 500 to Rs. 1,200 from bike scrap dealers or online marketplaces.
  • Aftermarket Assembly: Not widely available for the 135 LS due to the unique twin-pod design. Genuine or used is the best option.

Checking Speedometer Accuracy

The Pulsar 135 LS speedometer, like most Bajaj models, tends to over-read by about 5-8 percent. Use our GPS speedometer tool to check the actual speed. This is particularly important if you have changed the stock tire size or sprocket ratio, as these modifications affect speedometer accuracy. Simply mount your phone on the handlebar using a phone holder and compare readings during a steady ride.

DIY Repair Tips

  1. If the speedometer stops working, check the cable first before buying a new assembly. Disconnect the cable at the speedometer end and spin the front wheel. If the cable does not rotate, it is broken.
  2. For LCD display issues, gently press on the speedometer housing. If the display temporarily improves, the ribbon cable connection inside may need reseating.
  3. To replace backlight LEDs, carefully open the speedometer pod and solder in compatible replacement LEDs. T5 wedge-base LEDs are commonly used.

Maintenance for Long Life

  • Lubricate the speedometer cable every 5,000 km to prevent premature wear.
  • Check cable routing after any handlebar adjustment to avoid kinking.
  • Use a motorcycle cover when parked to protect the instrument cluster from sun and rain damage.
  • Address any needle bouncing or sticking immediately to prevent internal gear damage.

For more motorcycle speedometer guides and tools, visit SpeedometerLive Online.