1977 atc90 looking for manual or timing explanation

[Super350]

i have a 77 atc90 and im looking for a free downloadable manual or for someone to explain how to set the timing. I had to take the cylinder off so right now the timing chain is off the cam sprocket. I downloaded this one http://www.oscarmayer.net/atc/manuals/ but i cant find anything about doing the timing. thanks

EDIT: Also the high low range lever seems to be stuck in the low position. i cant push it over to high. I just got this trike so i dont know for sure but it looks like it hasnt run in a LONG time. Any insight on this would be great too!

[rdlsz24]

This one was pretty good when I was rebuilding my 110

http://www.mediafire.com/?1sy3fgmuqu6e8c7

Rob

[Vealmonkey]

Sometimes with the hi/lo gearbox lever, you have to rock the trike some back and forth to get the lever to switch gears. Remember, you are dealing with a 35 year old machine that not have always been treated the best. Do a search here on the site for downloadable manuals, they are here. It's alot to type out to explain how to put the cam back in and time it.

[WilliamJ]

Page 57 of that manual you downloaded - the pictures are not very clear and the instructions are a bit brief but it is there. As long as you have your piston at TDC and your cam lobes are pointing down symmetrically your marks should line up.

Bill