Matt, the tunnel is aluminum.

Haha thanks guys. Got it 2 years back for $150 rode it for part of the winter then snapped off the cord.

ok thanks bob. im roy

thanks. thats what i was afraid of. cause it has the non-metal gas tank from a 75, but the number on the tunnel says its a 74. so getting parts is gonna be confusing for me

KEC-400/22 sr no. 6206462. the pic file is too large so it wont let me upload it. so thats the 400cc out of a jdx6. do you guys think this was an error from the factory? or did somebody go to the trouble to change the engine/drivetrain and all the decals?

decal says 400cc. But the serial # on the tunnel would suggest its a 340. Its a CCW I'll run out to the barn to take a pic and post it

I thought it was a 1974 JDX6 but the serial # shows its a 1974 JDX4. Any ideas? The decals say JDX6 400cc. I want to start getting parts to rebuild it. Thanks