RedMax Run Issues(repost)

bartles

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Working on a RedMax HBX2601 leaf blower. Starts and idles great. Will not reach max rpm without choking it intermittently. Runs better upside down for a while. I have:
-replaced tank lines n filter
-replaced carb with new
-gaskets between carb n plastic isolator
are seating

Suggestions?.................................................This thing is about to get recycled...what am I missing?
 

StarTech

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It is possible you have gasket or seal problem with the crankcase. This is where a pressure/Vacuum tests are used to find the problem area.

It is to be note the entire crankcase is part of the engine intake system in two cycle engine.
 

bartles

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Well I got the gaskets covered but I honestly did not consider a crankshaft seal leak. Thanks again, I'll test the crankcase for a leak elsewhere....thanks you a bunch!!
 

bertsmobile1

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And if the carb was a cheapie of AmmoZone or Evipay no reason to believe it was correctly jetted or even is good
 

bartles

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True that.................................I put the old carb back on with no change. Crankcase leak is making sense.
 
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