Uploaded October 2024 | Updated September 2026, 4 hours ago

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The late model KTM, Husqvarna, and GasGas two stroke dirt bikes have a really simple compression testing method, and we wanted to walk you through it.

Steps:
Make sure you have a quality compression tester.
Install the appropriate adapter for the cylinder head and spark plug.
Hold the throttle wide open & turn the bike over until the gauge stops moving.

These are compressions testers we offer and recommend: slavensracing.com/?s=compression+tester+by&post_type=product&utm_source=Youtube&utm_medium=Description&utm_campaign=Compression_Testers
While you are there, you might as well replace your spark plug: slavensracing.com/shop/spark-plugs-ktm-husaberg-ngk/?utm_source=Youtube&utm_medium=Video&utm_campaign=compression_tester
If you want to add compression, we offer full TSP Cylinder Heads:
slavensracing.com/?s=cylinder+head+by+two+stroke+performance&post_type=product&utm_source=Youtube&utm_medium=Video&utm_campaign=compression_tester
Or TSP head inserts: slavensracing.com/?s=cylinder+head+insert+by+two+stroke+performance&post_type=product&utm_source=Youtube&utm_medium=Video&utm_campaign=compression_tester

Need a Rebuild?
EZ Top End Kits: slavensracing.com/shop/ez-top-end-rebuild-kit-250300-ktm-husaberg-husqvarna/?utm_source=Youtube&utm_medium=Video&utm_campaign=compression_tester
TBI Cylinder Kits w/ High Compression Heads: slavensracing.com/shop/slavens-mule-250-300-cylinder-kits-for-ktm-hqv-gg-tbi/?utm_source=Youtube&utm_medium=Video&utm_campaign=compression_tester
TPI Cylinder Kits w/ High Compression Heads: slavensracing.com/shop/slavens-mule-250-300-cylinder-kits-for-20-21-ktm-hqv-gg-tpi/?utm_source=Youtube&utm_medium=Video&utm_term=tpi&utm_campaign=compression_tester
Coolant: slavensracing.com/?s=101714&post_type=product&utm_source=Youtube&utm_medium=Video&utm_term=coolant&utm_campaign=compression_tester