Been looking here for more on reed stopper notching, found out the stainless steel ones are better for notching. Doing a rebuild on my '01 MM700 and checked my reed stoppers, they have a 4DA imprinted on them, are they stainless steel?
You can order that pn at any brand dealer(yam,pol,ac,can am,Kawasaki,Honda,Suzuki...snow boat bike)that has a PARTS UNLIMITED catalog. I've order mine at a Cat/Can-Am dealer.