Fradan Leaf Blower won't run at high speed?

jefferylhenryAugust 28, 2010

I have a fradan BB51 leaf blower. Its been well maintained and cared for. About 1 year ago it started dying at full throttle. It starts and runs well for a couple of minutes and (at full throttle) then after a bit it boggs down and dies. If you close the throttle it will refire and idle fine. I have done everything. Repaired the carb, adjusted the hi and low jets, cleaned everything, replaced the spark plug, cleaned the exhaust, replaced gas filter, added seafoam to fuel/run though carb and exhaust ports are fine. Last week I put on a new carb and it still does the same at the high end. The only thing I have not done is replace the fuel line (fuel comes out fine when you disconnect it from the carb). There is good compression. I am pretty much out of ideas.

Thank you for reporting this comment. Undo
ewalk

At 1st Sounds like the coil may be heating up and breaking down under load . You have indicated that you have cleaned the carb , also that it will restart with full choke (fuel Starvation) indicates that the fuel circuit is not getting adequate fuel to sustain prolonged high rpm. Perhaps the diaphram is weakening , did you replace same when you "Repaired the Carb" ? If so the Main Jet appears somewhat restricted still ! Also ensure you have fresh and clean fuel , don't laugh sometimes the simplest issues are over looked .

    Bookmark   August 29, 2010 at 9:54AM
Sign Up to comment
More Discussions
Older Troy Built Tiller Model ID
Trying to indentify model number of my unit. It is...
gardenerfrank
Best gas leaf blower?
Can anyone recommend a good gas powered leaf blower?...
robar
Testing the new format X allowing multiple attachments.
I am back to two Lexan chain guides due to a chain...
loger_gw
2 stroke Mantis tiller vs. 4 stroke Mantis
I'm looking at buying a small Mantis cultivator but...
lil_rhody
Snow Thrower impeller
I have a Craftsman 9 hp dual stage snow thrower, that...
fjs001
© 2015 Houzz Inc. Houzz® The new way to design your home™