My son just did a massive barn cleanup and found out I have the following, after years of collecting--all genuine Yamaha, most of them worked:
20P
21P
22P
23P
24P
27(?)P
The 20P turns the 02 into an 800 foot missile!
20P
21P
22P
23P
24P
27(?)P
The 20P turns the 02 into an 800 foot missile!