Troubleshooting Chart - Team Losi Muggy Hybrid Monster Truck User Manual

Losi Sport 427 Customer Support
Horizon Hobby Inc.
4105 Fieldstone Rd.
Champaign, IL 61821
1-877-504-0233
Problem
Engine won't start.....................
Engine won't turn over..............
Engine starts then stalls...........
Engine performing poorly.........
Engine overheats.....................
Engine hesitates or stumbles...
Engine stalls instantly when
throttle is fully opened from idle.
Engine stalls while driving around
turns..........................................
Engine stalls while idling..........
Trouble shooting Chart
Trouble shooting Chart
Things to Check
- Out of fuel
- Spoiled or improper fuel
- Glow plug not lighting
- Engine overheating
- Engine flooded
- Aircleaner blocked
- Exhaust blocked
Engine is flooded
Engine seized
- Idle speed set too low
- Glow plug is fouled/weak
- Air bubbles in fuel line
- Engine is overheated
-Insufficient fuel tank pressure/blockage
- Hi-Speed fuel mixture is too rich
- Engine overheating
- Leaking glow plug
- Carburetor dirty or blocked
- Bad fuel or contaminated
- Clutch slipping
- Bound drive-train
- Engine wonr out
- Hi-Speed fuel mixture is too lean
- Low-Speed fuel mixture is too lean
- Bad, contaminated, or improper fuel
- Restricted air flow across the heatsink
- Excessive load on the engine
- Engine overheated
- Hi-Speed mixture too lean
- Low-Speed Mixture to rich
- Air bubbles in fuel line
- Glow plug fould
- Glow plug fouled
- Hi-Speed mixture too rich
- Low-Speed mixture too lean
- Fuel level is low
- Idle speed set too low
- Low-Speed mixture too rich
- Low-Speed mixture too lean
- Idle speed to low
- Clutch shoes not disengaging
- Clutch spring broken
- Clutch bearings broken
- Engine wornout.
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Losi Sport 427 Customer Support
Horizon Hobby Inc.
4105 Fieldstone Rd.
Champaign, IL 61821
1-877-504-0233
Remedy
- Check/replace glow plug
- Charge/change battery
- Let cool - see "Testing the
Temperature
- Clean and oil aircleaner
See "About Glow Plugs"
- See "Carburetor Adjustments"
- See "About Glow Plugs"
- Check for split/hole in fuel line
- See "Testing the Temperature
- Clear pressure line
- See "Engine Tuning"
- Replace glow plug
- Try fresh fuel
- Clean, Adjust, Repair
- Check for damaged parts
- Rebuild
- See "Understanding Rich and
Lean"
- Clean head fins
- Check for damaged parts
- See "Engine Tuning"
- Check fuel line for holes
- Change glow plug
- Change glow plug
- See "Engine Tuning"
- Add fuel
- Increase idle speed
- See "Engine Tuning"
- Increase idle speed
- Check for broken clutch parts
- Check, clean, replace
- Rebuild