Low Compression Honda ATC Engine Tear Down, What Went Wrong!

Bought this 1984 Honda ATC200M for $500 and discovered that it had very low cylinder compression. In this video, the engine is removed from the frame and the head was removed to determine what happened within the motor. I was pleasantly surprised to find the piston, bore, rings, and head all in pretty good shape, It looks like this engine was rebuilt recently and that the head gasket failed. During the teardown, it was noticed that the crankcase vent was solid plugged with a large bolt. A plugged crankcase could lead to excessive crank case pressure and head gasket failure!

Honda ATC200M, DIY Head Gasket Replacement with and Cam/CDI Timing!
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Honda ATC200M, DIY Head Gasket Replacement with and Cam/CDI Timing!

Honda ATC 200M Engine, Improving Compression Without Disassembly!
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Honda ATC 200M Engine, Improving Compression Without Disassembly!

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WHY A #SMALLENGINE LACKS OR HAS ZERO #COMPRESSION

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Rebuild a Honda ATC Top End in Minutes -- Part 2: Get it Done NOW!

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TEARING INTO THE ENGINE ON MY MINT HONDA ATC 200S 3 WHEELER

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IDIOTS AT WORK Mechanic Edition | Part 2

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Best Engine Ever…🔥 Rare Old Engines Starting Up Sound That Will Blow Your Ears

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How To Set The Timing on your 3 wheeler- 185, 185s, 200, 200s, 200e, 200es, 200m and 200x

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Honda TRX300EX, Hacks for Low Compression Engine Start and Recovery!

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Trump Sends Vance to Concede to Iran & Reflecting Pool Is Filled with Corruption | The Daily Show

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Honda 300 REBUILD Episode #22. Piston removal and cylinder install!

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Autopsy of a Low Compression ATV Engine!

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I Bought A DISASTER BEATER Honda & Used A Car Part Store HACK To Fix It For DIRT CHEAP! YOU CAN TOO!

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Honda ATC 110 Reassembly, 5 of 12, Top End, Valve & Ignition Timing

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Honda XR80R Top End Tear Down - Finding Compression Leak

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Smokey Honda ATC200S, Piston, Jug Replacement, Engine Timing!

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How to fix EVERYTHING on a 150cc GY6 Chinese scooter 2014 Tao Tao BWS (Yamaha Zuma clone)