CR 250 77 or 78 Q ? S

Hello, i just bought a CR 250 to restore, the Frame number is ML 30260 Can someone enlighten me what year this frame is ? Where do i find the engine No. ? looked for it.... but it was umm night.. and couldnt find it What is the best manual to buy to ? it needs alot of new parts and many missing ,who is the best for parts for this model and year, Thankyou for any help or info..... Cheers and thanks

should be a tag attached to the upper edge of the case,,
a 77 Husky will have a silver air cleaner cover,,78 Huskys had a flat black cover.
77,s had currnut red springed rear shocks..78 Huskys started to use the remote res, Ohlins.
77 Huskys will have silver rims..78 WR and CR,s had gold rims..unless someone swapped them out.

It's a 78 frame according to this reference - www.vintagehusky.com/id.htm. The engine id is on a small metal plate attached to the engine case just above the countershaft sprocket. It is sometimes missing due to chain damage on the case. The 78 CR 250s had a 2065 engine.

Curnutts came on the OR models.

i just looked at a pic of one of my old 78 390 OR,s it did have the dual rate shocks,
black springs, with a yellow or white top spring, hard to tell from my old pic.
silver rims...chrome bars..

OHC,
Curnutts were the standard shock on the OR's in 78 and 79. I assembled more than 75% of them. If you had some different colors on the springs someone changed them before you bought the bike new. Curnutt had the contract to supply shocks during those years. I worked very closely with the Husky offroad team at that time. Ohlins came a little later.
Scott