RedMax hand held blower issue...Help!

LuvMyFerris · Jul 5, 2011

Lately my 5+ yr old redmax handheld blower (see model in sig) has begun to run worse and worse until finally it died and will only start by squirting a few drops of gas into the carb. It then runs for a few seconds and dies. So I : Changed the primer bulb as it cracked after repeated attempts to start, so a new one went on, I checked the fuel lines, I cleaned the carb apart with carb cleaner, I blew the carb out w/compressed air, changed the fuel pickup line, the yellowish greenish one is the return so I did not touch it. Took the muffler off and looked for carbon build up to find just very lil if any. Changed and gaped the plug to .025". And as a last resort I took the exact same carb off of my running RedMax string trimmer and put it on and guess what, it still will NOT start unless I squirt some fuel into the carb! :hammerhead: How can this be? When I press the primer bulb fuel is being picked up and returns via the return line so I must be getting fuel, correct? HELP

...next step is to toss it and get another... :dizzy:

dutch1 · Jul 5, 2011

Some 2 stroke carbs will survive 5 years or more but if had been me, I would have spent the 10 bucks or so for a rebuild kit. The diagphram pump and metering diagphram seem to harden up and won't pump and meter fuel properly, over a period of time. If you're using ethanol laced fuel the process seems to hasten itself.

Both Walbro and Zama have repair/parts info online.

rwaters · Jul 5, 2011

LuvMyFerris said:
Lately my 5+ yr old redmax handheld blower (see model in sig) has begun to run worse and worse until finally it died and will only start by squirting a few drops of gas into the carb. It then runs for a few seconds and dies. So I : Changed the primer bulb as it cracked after repeated attempts to start, so a new one went on, I checked the fuel lines, I cleaned the carb apart with carb cleaner, I blew the carb out w/compressed air, changed the fuel pickup line, the yellowish greenish one is the return so I did not touch it. Took the muffler off and looked for carbon build up to find just very lil if any. Changed and gaped the plug to .025". And as a last resort I took the exact same carb off of my running RedMax string trimmer and put it on and guess what, it still will NOT start unless I squirt some fuel into the carb! :hammerhead: How can this be? When I press the primer bulb fuel is being picked up and returns via the return line so I must be getting fuel, correct? HELP ...next step is to toss it and get another...

check the compression.

if it has low compression it will not draw fuel but it can still start if you spray fuel into the cylinder.

LuvMyFerris · Jul 6, 2011

Thanks, that compression thing makes sense.

LuvMyFerris · Sep 22, 2013

Talk about rise a thread from the dead! :usflag:
I know this thread is old and from 2011 but what I discovered today is info that others can use:

For a looooooong time now (since my last post in this thread!! :dizzy:

) I have been tinkering with my redmax HB250 blower which gave me great service but started acting up and gave me fits. :dizzy:

Long story short I have changed EVERY fuel related item on the blower thinking it was from storing my blower with ethanol tainted fuel in it and the only way I could ever get it running was to spray starting fluid directly into the carb after changing all of the fuel related parts including a brand new carburetor.:hammerhead: I was about to give up today and low and behold I discovered something very ODD, if I pulled the starter rope out maybe half an inch, it ran better, then I put my finger over the lil hole where the rope recoils into and EXHAUST was coming out!!! After taking the recoil off and then the pawl (correct term) that the recoil engages in I saw a small rubber (crank?) seal and apparently from heat and age it came loose and compression and exhaust was being lost thru this seal and causing the recoil rope case to heat up like the muffler!!! I tapped the seal back into its hole and put the unit back together and....WOW, it started up first try, OMG, it was fixed!!! :clapping: So I said, hell on this victory I went on the internet and found a new seal and it was LESS than $2 I must have spent at least $50 trying to fix this blower and all along it was a $2 seal :cool2:

and a close up showing the oily residue form the oil gas mix...

:dancing::clapping: :cool2:

:drinkup:

RedMax hand held blower issue...Help!

LuvMyFerris

dutch1

rwaters

LuvMyFerris

LuvMyFerris

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