I agree, buy, buy,buy & don't turn it over till you've pulled it down for inspection.
Eng No ID could be underneath the engine or on top of the rear engine mount.
Model ID was supposed to follow this code:
First digit indicated year of manufacture in 70's, eg 3 = 1973
Second indicates manufacturer & should be 8 for Canam
Third digit indicated size of engine. 4=125, 5=175, 6=250
Fourth digit indicated model type 1=enduro(TNT), 3=MX
However, Canam departed from this code somewhat by mid 70s, esp w the last digit, & even moreso by late 70s so it's not that reliable.
TNTs thro to at least 77 differed little from early ones, & 73/74 MX1's 125/175 were really just TNTs w'out lights. I don't think the 125/175 even had the MX rotary disc until MX2 model.
From about 75 (on TNTs) the exit from the expansion chamber into the peanut-shaped muffler went outside the rear frame tube where earlier ones went inside. Early ones had fibreglass airboxes, later ones had plastic. In 77 the rear part of the chamber/muffler was different again continuing straight back at seat height w a more conventional shaped muffler. These also had slightly diff tank decals. (The tank in the pic above is an early one, not 77)
There are some good websites & US suppliers for parts. Google "classic canam." for a start & follow links. DC plastics makes replacement plastic, which is imported by Les Richter at mainy maico (see add in VMXmag). I think its rtrmoto makes seatcovers. Tony Murphy listed on the canam site is good for parts. Al Roberts (also listed) has a huge store of parts apparently but he's very difficult to contact & its a bit of a hassle paying from overseas. canamparts4u.com in canada also has lots of parts & seem good to deat w (as is Tony Murphy)
Peter Schoene (Bultaco Parts, Vic) told me at CD5 that he now has all Bert Floods stock of Canam engine & body parts, but it may also be worth talking to Dave at Floods.
hope this helps
