Echo PB-251 leaf blower won't start


Old 07-03-15, 03:37 PM
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Echo PB-251 leaf blower won't start

used for 2 seasons. cranks but wouldn't start. replaced spark plug with champion from another blower (owners manual says only use NGK v-groove plug or engine damage can occur). Blower started up, but ran a little sluggish, but worked for the afternoon. next weekend it wouldn't start. replaced plug with OE NGK plug. Still won't start. checked fuel filter, seems like fuel is getting to carb.
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Old 07-04-15, 07:51 AM
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As a rule use only the OE stuff, especially with engine damage mentioned. Some of these things only have the clearance with the piston that an OE plug provides. Other times you may get away with an alternative plug if the heat range is nearly the same. The ration of oil to gas and fuel air mixture can change the game a lot too.

Since it's tough to juggle all the variables to keep the substitute plug in line, it's better to just use the OE plug. Granted there are others out there that seem to work better or as well.

When a two cycle runs then doesn't start, first change the plug. If still a no start, proceed as with a flooded engine. You need to take out the plug,either dump the fuel from the tank or cut it off, hold the throttle WO, no choke and spin it over a number of times (ten or over).

Then put a small spoon of fuel mix down the plug hole and pull it until it fires. It can take a few times. Then put it all back together with fuel in the tank and see if it will take off for you.

Last edited by marbobj; 07-04-15 at 08:35 AM.
Old 07-04-15, 11:36 AM
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At least 90% of the time with a small engine it's a fuel issue.
Rebuild or replace the carberator, check all the fuel lines for cracks or leaks.
Start using only nonethenel fuel, only mix one gal. at a time.
Old 07-30-15, 03:13 PM
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Had to replace the diaphragm and carb on my craftsman gas edger, and previous craftsman leaf blower stopped working years ago. Thought I would be better off with Echo, but sounds like all these small engine products have carb/fuel issues. I will pull the carb and replace if necessary.
Old 07-30-15, 07:58 PM
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The smaller the carb, the more susceptible it is to problems, especially with today's fuel.
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