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CARBURETION

Walbro Carb Comparison

CARBURETION
WT-644 Carburetor
WT-257 Big Bore Carburetor
WT-813 Big Bore Carburetor
644carb
257carb
813.carb
Venturi Bore: 12.7mm
Venturi Bore: 12.7mm
Venturi Bore: 12.7mm
Throttle Bore: 15.84mm
Throttle Bore: 15.84mm
Throttle Bore: 15.84mm
Primer Bulb: Yes
Primer Bulb: No
Primer Bulb: Yes
Choke: Yes
Choke: No
Choke: No
Mounting holes - Center to Center: 31mm
Mounting holes - Center to Center: 31mm
Mounting holes - Center to Center: 31mm
Accelerator Pump: No
Accelerator Pump: No
Accelerator Pump: Yes

Walbro Troubleshooting Chart

Marc L CARBURETION
Read more: Walbro Troubleshooting Chart

Walbro WA Manual

Marc L CARBURETION
Read more: Walbro WA Manual

Walbro WYK Manual

Marc L CARBURETION
Read more: Walbro WYK Manual

Walbro WT Manual

Marc L CARBURETION
Read more: Walbro WT Manual
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  • Home
  • SHOP
  • Forum
  • Magazine
    • PRODUCT REVIEWS
      • Boats
      • Engines and Accessories
      • Hardware
      • Radios
      • Miscellaneous
    • HOW-TO ARTICLES
    • HOBBY MACHINIST
    • TECH ARTICLES
    • RACES/EVENTS
    • MISC ARTICLES
    • COMPANY SPOTLIGHTS
    • SCRATCH/CUSTOM BUILDS
  • Resources
    • ENGINES
      • Terminology
      • Zenoah Stock Timing Specs
      • Zenoah Mod Timing Chart
      • Troubleshooting Guide
      • Zenoah Maintenance Specs
      • Zenoah G260/G231 Manual
      • Zenoah G230 Manual
      • Zenoah G230RC/G260RC Manual
      • Easy Engine Starting
      • Spark Plug Tech
      • See TECH for more...
    • PROPS
      • S&B YOUR PROPS
      • HEAT TREATING
      • KNOWING YOUR PROP
      • IMPROVE YOUR PROPS
      • PROP CHART
    • RADIOS
      • ANTENNA
      • BATTERIES
      • RADIO BOX
      • FREQUENCY CHART
      • SERVO DATABASE
    • CARBURETION
      • Walbro Carb Comparison
      • Walbro WT Manual
      • Walbro WA Manual
      • Walbro WYK Manual
      • Walbro Troubleshoot
    • BOAT PLANS
    • DEFINITIONS
    • FORMULAS/DATA
    • PAINT & FINISHING
    • PREVENTIVE MAINT.
    • TROUBLESHOOTING
    • TUNING
  • Links
    • RC Boating Organizations
    • RC Boat Clubs
    • RC Boat Sites
  • Videos