Engine Mounting Plates - 3 hole or 4?

I have a 1975 250 CR Mag. The engine I have has 2 mounting bosses in the front and the frame has 2 mounting holes on the downtube. However, the engine mounting plates on the front have only 3 holes - I figure 2 go to the frame and one to the top engine mount. Why doesn't my bike have a 4 hole plate like some of the other models? It seems like it would be a more solid mount. I don't think my bike has had any changes in mounting plates - I bought the bike in 1979 when the bike was only 4 years old. Any thoughts?

What is your engine number - 2042 or 2059 or 2065?

What is the number on the motor cases tag and are using a MK or ML series frame?

The 360CR as I recall had one bolt on the front of the engine. The 1975 250 CR has the ML frame with the laydown shocks. Only a 1975 WR will have the 1974 MAG frame

My frame number is ML 02864 and definitely has the laydown shocks. But for the life of me I can't find an engine number. Should be a riveted tag above the CS sprocket from what I have read, but there is no tag. Is it possible that Husky made several different cases for the '75 CR 250?

Post a pic of the front mounting area of your motor. The 75 CR motor had a single mount in the casting:

http://www.vintagehusky.com/images/brochures/1975_CR_250.htm

May be a chance that the cases are from a later (77 - on). As you pointed out, a stronger and more rigid mounting.

Pic of 77 CR250 Mounting Plates:

The bike did have transmission issues when I bought it - could it have been upgraded to a '77 bottom end?

I bet your right - the cases are definitely 77 or later. Would also explain why there is no motor number tag. Replacement cases sometimes did not come with tags.

Well, mystery solved! Guess she'll never go to a museum without "matching numbers", but I never plan on selling her anyway. A 1977 case would be most likely, since I bought the bike in 1979. Thanks for your help Vinskord, and any chance you would want to sell those engine plates in the picture?

Glad the 'mystery' is solved. I had a similar situation recently that took a while to figure out.

Pulled the pic of the mounting plates off the 'popular online action site'. See them for around $20 to $25.

You're the man! I'll start looking for 1977 engine mounting plate. Thanks!

I bought a set of engine mounting plates for a 79-80 CR on eBay, but the mounting holes were just a little too far off. Husky John, do you still have a set I could purchase from you? They must need to be for a 77-78.