

Ryobi RY08420A Backpack Blower Parts

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ryobihead31
jsnowash
If the engine is flooding, pull the spark plug, clean the spark plug...leave it OUT of the engine and let it engine dry out inside. On some Ryobis there is a lower crankcase cover that can be removed in the back...helping to dry the crankcase out even more.
Salazar
1557529 ÐÝ
link removed
http://www.ereplacementparts.com/momentary-contact-switch-p-565486.html
Here is the ignition module:
http://www.ereplacementparts.com/ignition-module-assembly-p-1742485.html
Make sure you are using a KNOWN GOOD spark plug when you test for spark.
Do the air gap over using a paper business card, not a credit card. Credit card may be too thick.
Since your blower burns oil, it forms carbon in the engine and muffler. Too much oil causes too much carbon. That can clog the muffler or cause a piston ring to stick. That results in compression loss and engine will not start.
1552393
Magnets are funny. They do weaken over time. They can cause no starts if they become too weak. I am dealing with one doing just that currently on an Echo. They can weaken to the point where they no longer excite the windings in the coil. Some flywheels get their cast in aluminum timing key worn out by the steel crankshaft. Then the flywheel starts slipping. If it slips enough, a no start can also result. Ask me how I know! They can call them junk. A lot of Poulan (they make engines for Ryobi, Homelite, Craftsman, Toro, Troy Bilt etc.) engines can deliver great performance. It is the other parts that usually cause the problems. Need anything else, come back for more.
As far as redesigning, a redesign most likely would result in a higher price and buyers would look elsewhere...like to Echo and Husqvarna. The future may hold oil injection for the 2 stroke engines as some other machines already have it. It is not NEW technology, but it has not made it to the lower priced lawn equipment realm yet.
The carburetors are made in China for the most part. The problem with them now is HOW LEAN the US buyers make them set them. They have to pass EPA C.A.R.B. Tier III emissions standards. They do not want the general public to mess with them and change the settings, hence the tamper proof mixture screws. There are ways to get around this however and you learn after fooling with them for a while.
If you have a GOOD carburetor and a GOOD flywheel, you should be able to solve the no start problem.