Summary of Engines
Page 1
Lct engines service manual.
Page 2: Table of Contents
Table of contents engine model number & serial numbering system 2-3 general specifications 4 general troubleshooting 5-6 advanced troubleshooting (for authorized lct technicians) 7-9 spark plug service 9 engine oil level check 10 engine oil change 10 engine oil recommendations 10 maintenance schedul...
Page 3: 08 60H 02 03611
Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 2 the first two lines of an engine’s number is the model number. It is alphanumeric and engraved on the side of the block to the right of the recoil. The third line is alphanumeric and is al...
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 3 pre- production plant design family crankshaft shaft shaft detail hp paint code starter type options emissions label pack code x p lm moderate h horizontal t threaded xx 150 1.5hp (63cc) 1...
Page 5: General Specifications
Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 4 general specifications item 208cc 291cc 414cc maximum speed 3850±50rpm 3850±50rpm 3850±50rpm idle speed 2150+/-50rpm 2150+/-50rpm 2150+/-50rpm compression ratio 8.5:1 8.2:1 8:1 displacement...
Page 6: General Troubleshooting
Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 5 general troubleshooting engine will not start: $ifdlpjmmfwfm%pzpvibwfuifdpssfdubnpvoupgpjm 3fg&ohjof0jm4fswjdf qh 3fnfez0jmtipvmecfwjtjcmfboeupuifupquisfbetpguif-08&45pjmàmmtqpvu 2. Is on/...
Page 7: General Troubleshooting
Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 6 general troubleshooting engine stops running: )btuifgvfmcfjohvtfecffoqvsdibtfexjuijouifmbtuuisffnpouitboexbtjutupsfejobqmbtujddpoubjofs 3fnfez3fqmbdfpmegvfmxjuiofxgvfm 2. Is the air filter...
Page 8: Advanced Troubleshooting
Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 7 advanced troubleshooting – for authorized lct technicians &/(*/& complaint symptom and possible causes remedy engine will not start, or is hard to start compression too low 1. Valves out o...
Page 9
Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 8 noisy engine excessive valve chatter 1. Too large valve clearance adjust 2. Weakened or broken valve spring replace 3. Worn tappet or cam lobe replace 4. Worn and burnt camshaft journal re...
Page 10: Spark Plug Service
Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 9 dirty or heavy exhaust smoke 1. Too much engine oil in the engine adjust 2. Worn piston rings or cylinder replace 3. Worn valve guides replace 4. Scored or scuffed cylinder wall replace 5....
Page 11: Engine Oil Level Check
Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 10 engine oil level check check the engine oil level with the engine stopped and with the engine in a level position. 1. Remove either side mounted filler cap dipstick or high oil fill dipst...
Page 12: Note
Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 11 note 'pmmpxjohqspqfsnbjoufobodfjtdsjujdbmvoefsfyusfnf pqfsbujohdpoejujpot maintenance schedule normal operating conditions (less than 40 hrs. Per year) each use first month every 6 months...
Page 13: Torque Specifications
Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 12 torque specifications 208cc 291cc 414cc item torque (n.M) torque (n.M) torque (n.M) drain bolt 17-18 (150-160 in-lbs.) 24 (210-220 in-lbs.) 24 (210-220 in-lbs.) oil drain tube (if equipped...
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 13 208cc summer engine dimensions *drawings do not accurately represent actual engine appearance. 4-5/16-24unf 5/16-24unf 16.250 in (412.75mm) 14.00 in (355.6mm) 11.625 in (295.275mm) 4.17 i...
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 14 291cc summer engine dimensions *drawings do not accurately represent actual engine appearance. 22.5 29 17 r13 r7 132 90 14 106 ø12 2-ø10.5.
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 15 414cc summer engine dimensions *drawings do not accurately represent actual engine appearance. 22.5 29 17 r13 r7 132 ø12 2-ø10.5 90 400 485 14 106 432 133±0.03.
Page 17: 208Cc Snow Engine Dimensions
Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 16 208cc snow engine dimensions *drawings do not accurately represent actual engine appearance. '' ' '.
Page 18: 291Cc Snow Engine Dimensions
Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 17 291cc snow engine dimensions *drawings do not accurately represent actual engine appearance. 317 70.8 182 145 182 297 260 35 349 100 73 81 0.1 + - 317 70.8 182 145 182 297 260 35 349 100 ...
Page 19: 414Cc Snow Engine Dimensions
Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 18 414cc snow engine dimensions *drawings do not accurately represent actual engine appearance. 70.8 322 35 359 100 73 103 270 70.8 183 103 225 35 100 73 + - + - + - + - + - + - 59 +1 0 4.5 ...
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 19 208cc manual start summer engine service kit 1 cylinder head assembly sk2081000 2 push rod assembly sk2081001 3 valve cover assembly sk2084500 4 cylinder assembly sk2081300 5 piston assem...
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 20 291cc manual start summer engine service kit 1 cylinder head assembly sk2911000 2 push rod tappet kit sk2911001 3 valve cover assembly sk2914500 4 choke lever, carburetor sk4142120 5 pist...
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 21 291cc manual start summer engine service kit 1 cylinder head assembly sk2911000 2 push rod tappet kit sk2911001 3 valve cover assembly sk2914500 4 choke lever, carburetor sk4142120 5 pist...
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 22 414cc manual start summer engine service kit plmhk291150124pbgpstuve2s residential 43* 2* *included with part# 1 47 41 44 31 32 10 5 25 27 1 3 11 48 12 6 39 19 24 26 16a 15 14a 36 38 37 3...
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 23 43* 2* *included with part# 1 47 31 32 10 5 25 22 27 1 6 41 3 39 19 24 26 16a 15 38 37 7 34 18 8 29 9 4 13a 23 17 45 44 14a 30a 28a 11 48 12 20 36 1 cylinder head assembly sk4141050 2 pus...
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 24 43* 2* *included with part# 1 41 44 31 32 10 5 25 27 1 6 39 19 24 16a 15 14c 36 38 37 8 29 9 30a 28a 4 13a 23 21 22 17 11 47 12 26 34 18 20 3 1 cylinder head assembly sk4141050 2 push rod...
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 25 43* 2* *included with part# 1 45 20 31 32 10 5 25 21 22 27 1 6 41 3 39 19 24 26 16a 15 36 38 37 7 34 18 8 29 9 4 13a 23 17 14c 30a 28a 11 47 12 44 33 1 cylinder head assembly sk4141050 2 ...
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 26 208cc manual start snow engine service kit plmhk18650781dp-abgoquve1m/s 31 49 45 48 34 12 38 16 37 36 30 27 50 29 22a 21 26 19 17 20a 18 28 3 42 44 40 41 39 1 23 2 8 11 25 5 4 56 55 inclu...
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 27 208cc electric start snow engine service kit plmhk18650781de-abgjoquvye1m/s 32 31 33 12 38 30 47 29 22 21 45 10 26 19 17 20 18 28 3 42 44 40 41 39 1 23 2 48 8 11 5 4 34 16 37 36 25 49 50 ...
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 28 208cc manual start snow engine service kit plmhk18650781dp-abgoquve1m/s 31 49 45 48 34 12 38 16 37 36 30 27 50 29 22a 21 26 19 17 20a 18 28 3 42 44 40 41 39 1 23 2 8 11 25 5 4 56 55 inclu...
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 29 electric start only 31 34 29 12 38 37 36 30 47 27 49 57 22 32 3 48 26 26a 20 18 28 42 44 40 41 39 23 16 50 21 51 11 8 13 46 1 5 4 19 17 40* *included with part# 40 15 6 56 58 33 10 25 61 ...
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Rev:010410 copyright © 2010 liquid combustion technology, llc lct engine service manual: 208cc, 291cc & 414cc 30 electric start only 31 34 29 12 38 37 36 30 47 27 49 32 3 48 20 42 44 40 58 41 39 23 16 51 11 1 5 4 19 17 40* *included with part# 40 15 6 55 56 57 22 26 26a 18 28 50 21 33 10 8 13 46 25 ...
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