- Joined
- Sep 4, 2007
- Messages
- 3,776
Looking for one of these late model engines. Prefer new
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Yup, those old OPS 3.5 side port motors would run forever… my first mono had an OPS in it and I won a ton of trophies with it… I even ran it at the IMPBA nat’s in 1988.When I first started running in the early 70's all we had were Veco 19's. The Taipan came out but they were subject to crankshaft's breaking although a little better than the Veco. And then the front carb K&B' and right after was the OPS 3.5. The advantage with the OPS was the carb and the tuned pipe and they ran pretty good. I bought a Picco 3.5 and the piston and cylinder weren't a good match with no compression. I was told Picco had a problem with the fitment, but I pretty much stopped running so never replaced the piston and sleeve. Now I have a new Picco that needs a piston and sleeve.
Could you tell me if the one you have has the thin head button for short plugs or the thick head button for long plugs. I bought a box of 5 used engines at the nationals last week and the engines had both types. I was wondering what they came with out of the factory. I always thought the early version with the intake on the side took short plugs and the new drum rotor version took long plugs.I don't charge for info and pictures... bahaaaaaa. (the motor is not for sale).. sorry for the confusion.
Grim
That’s what I thought too but Randy at K/B said it could be either.To my knowledge all of the drum engines were long plug.
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