Re: throttle cam and cam follower relationship

[johnyrude200]

Those tiller handle grip arrows mean nothing. They were good in the 50’s, hit or miss in the 60’s, and pretty much a novelty from the 70’s there on forward. When you go to start the motor advance the timing to at least 1/2 throttle regardless of what the twist grip word say.

I think things got a little better in the 80’s with the plastic speed reference but at that point all they illustrated was a ‘curve’ and a propeller image. My 2014 Etec follows suite. I don’t even bother to advance the throttle on the new motor because the whole thing is computerized. It starts even at the lowest timing setting. If your tiller grip isn’t original or worn, than those grip indicators mean nothing. Or say that metal sleeve (with the words on it) is loose? Well than we are having a conversation that is about as valuable as a pair of oars in a tornado at sea (hurricane).

Do a link and sync on your motor, the mag plate cam can be adjusted so the cam follower makes contact at the line.

If you know the carb is OK, spark is strong, and compression is NOT low, than this line should still be the right spot. But you can cheat the carb pickup in either direction slightly to tweak performance. When you start talking about mid 70’s 18-20-25hp motors, well, experience is the best teacher in terms of when the carb should start opening up based on an individual motor’s "personality."