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133-1486 is a replacement timer base used on 235 HP Johnson/Evinrude 1978 models. Used when timing signal problems cause misfire, hard starting, or poor acceleration.
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Part #: 133-1486
Evinrude235 HPTimer BaseWeight: 2 lb
4.0 / 5  (24 votes)
133-1486 is a replacement timer base used on 235 HP Johnson/Evinrude 1978 models. Used when timing signal problems cause misfire, hard starting, or poor acceleration.
List Price: $370.39
Your Price: $337.10
Normally In Stock

In Stock items ship same day if ordered before 3PM CST (excluding weekends and holidays)

Replaces OEM#'s

581486

Product Details

This timer base assembly is engineered to provide accurate ignition timing synchronization and dependable trigger signal generation throughout the engine's RPM range.

Precision pickup circuitry and marine-grade insulated wiring are designed to resist moisture intrusion, corrosion, and continuous engine vibration.

Features

  • Designed for stable CDI timing signals
  • Vibration-resistant electronic components
  • Marine-grade sealed construction
  • Supports dependable throttle response

Common Symptoms of a Failing Timer Base

  • Intermittent ignition timing issues
  • Ignition timing drift after warm-up
  • Hard starting conditions
  • Erratic spark timing behavior

Need Fitment Help?

Tell us your brand, horsepower, and part number. We can help verify fitment before you order.

Support PDF files appear on this page when available.