Honda ST1300A

https://www.youtube.com/watch?v=aPN6InDHE4k Japanese Automotive Standards Organization JASO certified oilwet clutch and shear stability MAMA1MA2 Recommended oils on the ST-Owners forum Shell Rotella T6 Full Synthetic 5W-40 Diesel Engine Oil, 1 Gallon meets JASO MA and MA2$23.52 at WalMart$37.99 at NAPA "Chevron Delo 400, Mobil Delvac 1300, and Shell Rotella are made from pure Group II oils" "Three synthetics stand out from the rest: Mobil Delvac 1, Mobil-1 SUV and Shell Rotella T Synthetic." (Courts ruled) "the word "synthetic" was a marketing term and referred to properties, not to production methods or ingredients. Castrol continues to make SynTec out of Group III base oils, that is highly purified mineral oil with most all of the cockroach bits removed."

PL14610 Purolator One Oil Filter $10.44 at WalMart synthetic 80/90 in rear differential every 10000 miles.

Linkshttp://www.thefairchilds.org/bikes/ Scott Fairchilds cycle corner https://motorcycleinfo.calsci.com/Oil.html Mark Lawrence founder or California Scientific (makes windshields)

Lower Cowl bolthttps://www.partzilla.com/product/honda/90106-MBY-000 $2.49 at PartZilla5x12SCREW90106-MBY-000