Guerrilla 450 4th Service: Engine Opened! 😱 Major Carbon Gunk & Fuel Pump Issues Explained

Product Reviewed

Royal Enfield Guerrilla 450 (4th service experience; engine opened)

• The video covers what was done during the 4th service, what problems were found (notably carbon gunk, throttle body dirt, and a dirty fuel injector), and a few upgrades.

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Key Features / Service Work Mentioned

Cleaning & Inspection

• Throttle body cleaning due to heavy contamination from:
  • Carbon deposits
  • Dust deposits
• Fuel injector cleaning
  • Described as very dirty
• Emphasis that:
  • Everything was performed after opening/inspection in front of him
  • The process was recorded

Upgrades & Replacements

• Chain tensioner upgrade
  • Upgraded to the latest chain tensioner, described as hydraulic
  • Comparison:
    • Newer “Gorilla”: “completely hydraulic”
    • First-gen Gorilla (his bike): hydraulic + spring
• Coolant changed
  • Specifically mentioned as a service item he insisted on
• Engine oil changed
  • Noted as “not usually changed at 4th service” (per the speaker)
• Air filter changed
• Oil filter changed

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Pros (User Experience / Outcomes)

• After service, the bike runs:
  • “smooth as butter”
  • Feels like a brand new bike
• Throttle response improved (“very good”).
• Customer satisfaction is high because:
  • Mechanics were willing to explain and carry out work he requested, even when they initially disagreed
  • The service was done in a way he could watch
• He prefers this center because they handle the service “as per my wish.”
• The service is portrayed as thorough, involving opening everything rather than only routine work.

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Cons / Pain Points Mentioned

• Time cost: service took about 6.5–7 hours
• Initial disagreement with mechanics about whether coolant needed changing at that mileage
  • Mechanics claimed it wasn’t needed yet
• No negative performance outcome after service was mentioned
  • The main “cons” are process-related (waiting and disagreements).

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Specific Comparisons Made

Service Center Proximity vs. Choice

• Royal Enfield service center: ~300 meters away
• He instead goes ~22 km to Aman Automobiles (authorized service center)

Chain Tensioner Generations

• His (first-gen): hydraulic + spring
• New setup: completely hydraulic

Work Philosophy

• He felt the nearby center would not follow his preferences as much.
• Aman Automobiles was described as more receptive.

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Issues Found Inside the Bike

• Severe throttle body contamination
• Dirty fuel injector
• He implied concern/fear after seeing the level of dirt before cleaning.

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Ratings / Numbers Mentioned

• 4th service duration: ~6.5–7 hours
• Distance traveled: 22 km one-way (he mentions walking/going that far)
• Nearby Royal Enfield center distance: ~300 meters
• Mileage-related coolant claim:
  • Around 20,000 km
  • Mechanics said coolant still had 12,500 km remaining (as phrased in the subtitles)

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Overall Verdict / Recommendation

Recommended.

• The video’s outcome highlights:
  • Thorough, transparent service
  • Discovery and correction of throttle-body and injector dirt
  • A chain tensioner upgrade
• Result:
  • Very smooth running
  • Strong throttle response
• Trade-offs:
  • Longer wait time
  • Some initial disagreement about coolant

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Speaker / Perspective Notes

• Single main speaker (bike owner)
• The story emphasizes:
  • Choice of service center
  • Upgrades performed
  • Disagreements about coolant
  • Time spent
  • Post-service ride quality