Tecumseh AV520 670-01 2 cycle engine 30547A Points, 30548B Condenser, 30560A Coil (T-man).
Weedy should have a reed valve plate where carburetor bolts on. These often become rusted and do not seal properly. Labrat Weedy did not come from a snow blower, she was not exposed to the same environments. Her reeds remain uninspected at this post.
Reed valve is part # 470139A....DISCONTINUED by Tecumseh in 2007 (T-Man).
But will this become problem now? Unknown. They can be found on the internet from time to time. The old engines are not to hard to come buy and its easy to see having a few for parts. (Never give up) Quit when ready always served me well. If ignition problem are all that exists....NEW points and condenser will usually
do the trick
Credit
T-Man Dec 13, 2009 Small Engine Technical Forum
There is alway the CD conversion that bypasses the points the last one i bought was from NAPA Northern tool used to sell them also..........Curt