i am having a terrible time finding any info on this sled, including owners manual and parts list. heck, i can't even verify the gas/oil mix ration!

any help?

Yep you are right! I have a 73 and a 74. I have not been able to find engine seals. The sleds have been stored for the past few (maybe 10) years. Someday I will get serious and restore them.. and your other question..the fuel oil was 20 to1 but you can run it 40 to 1 with the new oil no problem....good luck :D TB