Troubleshooting your Snow Joe gas snowblower when it won't self propel
Inspect the drive clutch cable and adjust if it's loose. Check the drive belt for excessive wear and replace it if necessary. Reinstall the drive belt if it slipped off a pulley. A worn friction disc won't propel the snowblower so check the friction disc and replace it if it's worn.
The snowblower also won't move with the auger housing or scraper blade scraping the ground. Tighten the scraper blade if it's loose and replace it if damaged. Adjust or replace the skid shoes to lift the auger housing to the proper height. Check the tires and rims and replace a rim if it doesn't spin smoothly on the axle. Tune up the engine if it runs rough and doesn't have enough power to propel the snowblower.
How to fix your Snow Joe gas snowblower when its engine runs rough
If your engine is running rough, a problem with the carburetor is a likely cause. Rebuild or replace the carburetor to fix a fuel delivery problem. A clogged fuel filter will also prevent the engine from getting fuel, causing the engine to sputter or run rough. Check the fuel filter and replace it if clogged. A dirty spark plug won't ignite the fuel consistently, causing the engine to miss and sputter. Check the spark plug and replace it if necessary. Incorrect valve lash could cause the engine to run rough so check and adjust the valve lash. Check the engine sump gasket because a leaking gasket can cause low compression and a rough running engine. A thorough snowblower tune-up can also help the engine run smoothly.