It is important that the engine on any of Gasoline Pressure Washer Manufacturers' high-pressure washers will not run with the pump first filled with water. This is why I always let water flow through the pump until all the air is expelled before starting the engine. Just turn on the water at the outlet of the hose, pull the trigger on the wand, and let the low pressure water flow through the hose and onto the ground until all bubbles stop gushing out.
Here is an important detail: Before allowing the water to purge the air, be sure to remove any nozzle tips that may be installed at the end of the wand. This allows water to pass through the pump faster and also allows any sediment to be washed away from the system without clogging the detachable nozzle tip. If the nozzle tip becomes clogged or partially clogged when the engine starts and the pressure increases, it may make it difficult to remove the nozzle for cleaning. Flush first, then install the nozzle tip of your choice after flushing and purging. I know from experience that this can save you a lot of trouble.
Speaking of nozzle heads, each high-pressure cleaner is equipped with various nozzle heads, which can produce different spray patterns. The wider the pattern, the gentler the spray. The narrower tip is best for removing stubborn dirt on hard surfaces that are not easily damaged.
After removing the air with a pressure washer and installing a suitable nozzle at the end of the rod, it is time to start the engine. Even if the engines involved are similar, the procedure is different from starting a lawn mower or snow blower.
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