Table of Contents
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Table of Contents
Troubleshooting
Related Manuals for LCT Engines
Summary of Contents for LCT Engines
- Page 1 LCT Engines Service Manual...
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Page 2: Table Of Contents
Table of Contents Engine Model Number & Serial Numbering System General Specifications General Troubleshooting Advanced Troubleshooting (for authorized LCT technicians) Spark Plug Service Engine Oil Level Check Engine Oil Change Engine Oil Recommendations Maintenance Schedule Torque Specifications 208cc Summer Engine Dimensions... -
Page 3: Engine Model Number & Serial Numbering System
5. Shaft - This column is used for the description of the PTO shaft. This will aid in determining what will be the engine’s primary use. 6. Shaft Detail - This column references a chart that designates which LCT engineering drawing corresponds to the PTO shaft. - Page 4 Viton Oil Seals Orange) Orange Blower Housing (Titan Single Coil DC Charging Spec Orange) System [TBD] Dual Stator Charging System CE Compliance Package - SUMMER SERIES Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc...
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Page 5: General Specifications
.20 +/- .02mm (.007-.009 in.) Dry Weight (Summer Engines) 35lbs (16.6kg) 57.32lbs (26kg) 69.45lbs (31.5kg) Dry Weight (Snow Engines) 38lbs (17.25kg) 61.5lbs (28.9kg) 75.5lbs (34.3kg) Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc... -
Page 6: General Troubleshooting
7. Is the spark plug boot securely fastened to the spark plug? 9. Is the engine flooded? Using an incorrect spark plug may cause engine damage. Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc... -
Page 7: General Troubleshooting
Using an incorrect spark plug may cause engine damage. 6. Is the fuel petcock turned to the on position? 7. Is the throttle set too low (variable speed models only)? Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc... -
Page 8: Advanced Troubleshooting (For Authorized Lct Technicians)
Engine stalls easily 1. Dirty/gummed up carburetor Clean 2. Fouled spark plug Replace 3. Clogged fuel line Replace 4. Valves out of adjustment Adjust Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc... - Page 9 10. Too much engine oil Adjust 11. Air fins clogged on engine causing to overheat Remove debris 12. Not enough oil in engine Adjust Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc...
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Page 10: Spark Plug Service
A loose spark plug can overheat and damage the engine. Over-tightening the spark plug can damage the threads in the cylinder head. 6. Attach the spark plug cap. Ensure spark plug cap snaps into place securely. Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc... -
Page 11: Engine Oil Level Check
The SAE oil viscosity and service classification are in the API label on the oil container. The manufacturer recommends you use API SERVICE category Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc... -
Page 12: Maintenance Schedule
Check Clean Oil Leaks Check Bolts Check Fuel Hose Clamps Check * Spark plug gap to be set to 0.027 - 0.030 inches. NOTE Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc... -
Page 13: Torque Specifications
Flange bolt for value cover (head cover) 7 (62 in-lbs.) 12-13 (106-115 in-lbs.) 12-13 (106-115 in-lbs.) *Torque values are with thread locking compound applied to the threads. Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc... -
Page 14: 208Cc Summer Engine Dimensions
3.78 in [96mm] BOLT CIRCLE 12.500" in (317.50mm) 6.38 in [162mm] 5/16"-24 thread 4-5/16-24UNF 7.28" (185mm) 6.38" (162mm) 2.200" 3.622 41.25+0.025 4-5/16-24 2.58" (65.5±0.05mm) 6.34" (162±0.05mm) Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc... -
Page 15: 291Cc Summer Engine Dimensions
291cc Summer Engine Dimensions *Drawings do not accurately represent actual engine appearance. 22.5 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc... -
Page 16: 414Cc Summer Engine Dimensions
414cc Summer Engine Dimensions *Drawings do not accurately represent actual engine appearance. 22.5 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc... -
Page 17: 208Cc Snow Engine Dimensions
208cc Snow Engine Dimensions *Drawings do not accurately represent actual engine appearance. Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc... -
Page 18: 291Cc Snow Engine Dimensions
ø92 0.15 81 0.1 81 0.1 90 0.1 105.5 0.1 369.03 70.8 70.8 208.3 90 0.1 105.5 0.1 4xø8.9 -0.1 90 0.1 105.5 0.1 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc... -
Page 19: 414Cc Snow Engine Dimensions
73.03 ø113 0.15 ø92 0.15 90 0.1 105.5 0.1 387.03 70.8 70.8 223.2 22.5 90 0.1 105.5 0.1 4xø8.9 -0.1 90 0.1 105.5 0.1 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc... -
Page 20: Exploded Parts Drawings
Filter Element, Panel Paper SK2082012 Governor Link Assembly SK2083000 Foam Pre-Filter SK2089001 Muffler Assembly SK2082100 Governor Arm Shaft Assembly SK2083100 Low Oil Sensor SK2082700 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc... - Page 21 Rocker Arm Kit SK4141100 Muffler Assembly SK2912100 Governor Link Assembly SK2913000 Cylinder Assembly SK2911300 Fuel Tank Assembly SK4142200 Governor Arm Shaft Assembly SK2913100 Foam Pre-Filter SK4149001 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc...
- Page 22 Muffler Assembly SK2912100 Governor Link Assembly SK2913000 Cylinder Assembly SK2911300 Large Capacity Fuel Tank Assembly SK4142201 Governor Arm Shaft Assembly SK2913100 Foam Pre-Filter SK4149001 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc...
- Page 23 High Oil Fill Assembly Kit SK4143720 14A Fuel Tank Assembly SK4142200 Starter Cup SK4143300 Foam Pre-Filter SK4149001 Fuel Petcock SK4142220 30A Blower Housing Assembly SK4143400 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc...
- Page 24 SK4141710 Muffler Assembly SK4142100 Recoil Starter Assembly SK4143200 High Oil Fill Assembly Kit SK4143720 Fuel Tank Assembly SK4142200 Starter Cup SK4143300 Foam Pre-Filter SK4149001 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc...
- Page 25 Governor Arm Shaft Assembly SK4143100 Foam Pre-Filter SK4149001 14C Large Capacity Fuel Tank Assembly SK4142201 28A Recoil Starter Assembly SK4143200 Fuel Petcock SK4142220 Starter Cup SK4143300 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc...
- Page 26 SK4142100 Recoil Starter Assembly SK4143200 Foam Pre-Filter SK4149001 Large Capacity Fuel Tank Assembly SK4142201 Starter Cup SK4143300 Fuel Petcock SK4142220 Blower Housing Assembly SK4143400 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc...
- Page 27 Fuel Hose Kit SK2086000 Starter Cup Small SKSN0601 Governor Shaft SK2083100 Extended Oil Drain Tube SKSN0700 Snow Starter Grip SKSN0603 Governor Gear Assy SK2082900 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc...
- Page 28 Fuel Hose Kit SK2086000 Starter Cup Small SKSN0601 Governor Arm Assy SK2083000 Extended Oil Drain Tube SKSN0700 Snow Starter Grip SKSN0603 Governor Shaft SK2083100 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc...
- Page 29 Fuel Hose Kit SK2086000 Starter Cup Small SKSN0601 Governor Shaft SK2083100 Extended Oil Drain Tube SKSN0700 Snow Starter Grip SKSN0603 Governor Gear Assy SK2082900 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc...
- Page 30 Fuel Hose Kit SK2916000 Blower Housing Assembly, Electric SKSN2602 Governor Shaft SK2913100 Extended Oil Drain Tube SKSN4700 Start-Snow Governor Gear Assembly SK2912900 Fuel Knob-Snow SKSN4503.1 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc...
- Page 31 Extended Oil Drain Tube SKSN4700 Blower Housing Assembly, Electric SKSN4602 Governor Gear Assembly SK4142900 Fuel Knob-Snow SKSN4503.1 Start-Snow Camshaft SK4141600 Shield, Cylinder SK4141010 Cylinder Head Assy SK4141050 Rev:010410 Copyright © 2010 Liquid Combustion Technology, LLC LCT Engine Service Manual: 208cc, 291cc & 414cc...
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Questions and answers
lct 298 needs some choke to run. engine surge. throttle opens and closes.
The engine surge and throttle issues in the LCT 298 when using the choke could be caused by:
1. Throttle set too low – Increase the throttle (for variable speed models).
2. Incorrect choke position – Ensure the choke is set correctly.
3. Spark plug issues – Check for corrosion or poor seating; replace or retighten as needed.
4. Fuel issues – Check if the engine is out of fuel or the fuel petcock is off; refuel and turn petcock on if needed.
5. Valve problems – Valves out of adjustment or worn valve guides can affect engine performance; adjust or repair as necessary.
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lct 208 governor surges, throttle mover back and forth.
A surging governor and throttle movement on an LCT 208 engine are typically caused by an incorrect air-fuel mixture, often due to a dirty or improperly adjusted carburetor. This can also result from air leaks, fuel supply issues, or improper governor linkage adjustment.
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