Stihl leaf blower br420

sbow1771June 19, 2014

Hi I've got a stihl br420 leaf blower it started yesterday it spluttered for a while and then cut out an I couldn't get it to start again it's getting plenty of fuel as it's flooding out of the spark plug.upon further inspection I have noticed that there is no spark I have checked the flywheel and it looks in good con apart from there was abit of rust on the two magnets which I have clean'd off with abit of sand paper an put it all back together an still no spark I have try'd changing the plug but still nothing the ignition looks in good con no marks on it to say it would have gone but wouldn't no how to test it any idears plz

Thank you for reporting this comment. Undo
loger_gw

1. A. You could be missing seeing the spark in the daylight or not having it grounded good to metal in the on position. I suggest an inline spark tester from Harbor Freight or your local Auto store.
B. Do you feel you had the plug grounded good to metal (cylinder/Etc) and tried to see in it in a dark area vs daylight?
C. Know that you have a plug that fires in another engine for testing vs using.
D. With the plug out, a fair spin of the flywheel should show you a spark from a good grounded plug or the plugâÂÂs wire lead close to a good metal ground (if the connectorâÂÂs metal is exposed close to ground or use a short bolt if needed).

  1. Another Idea is to disable you on/off (unplug) to know it is not killing your spark.
    3. If you ever get past no spark, ck your air filter or remove it. Try with a light prime.
    4. Fire/Fuel/Compression and it should run.
    Bookmark   June 22, 2014 at 2:46PM
Sign Up to comment
More Discussions
Best gas leaf blower?
Can anyone recommend a good gas powered leaf blower?...
robar
No more roll pins
Finally got the roll pins out of the wheels on my Horse...
snuffyinatl
Craftsman Snowblower Recall
Did anyone else receive a recall notice in the mail...
pjrsjr
Snow Thrower impeller
I have a Craftsman 9 hp dual stage snow thrower, that...
fjs001
Chainsaw:Poulan 295 Pro
I just purchased a used Poulan 295 Pro...$50..not bad!...
JDH2015
© 2015 Houzz Inc. Houzz® The new way to design your home™