Montesas
Montesa Cota 349 & 348
We use a 26mm OKO for our 349 and 348 Cotas. The kits include new manifold rubber sleeves, extra jets and for the 349, a sleeve for the air box. These kits improve mostly low and mid-range power.
Montesa Cota 247
We previously used a 26mm OKO on the 247, but have changed that to using the 28mm due to more recent testing. This is one of the more complicated kits. The thick heat block is replaced with a thinner one, onto which our flange adapter is placed. Then the Cota's studs are replaced with Allen bolts. The "bone of contention" is in connecting the air boot. We will supply a short spacer hose for the OKO's intake, but it only brings the OD to within 1.5mms of the air boot's ID. We have not had a problem closing the boot with a hose clamp, but have had reports that some have. This kit is returnable if you are unhappy with it, but we stand behind it, knowing it will be a big improvement over the AMAL carburetor and that the air boot connection works.
Montesa Cota 123
Our Cota 123 kit uses an 21mm OKO jetted for it. The kit also includes a flange adapter, a 10mm thick heat block and extra jets. The air box hose will fit the OKO's intake. We found the back of thetop of the OKO may hit the frame. Since the flange adapter is rubber, the heat block is not needed and can be left off if frame clearance is a problem
Cota 348
Cota 349
