Re: Loss of power under load

From: Michael Frenn <semsc@...>
Date: Sun, 9 Jun 2002 10:35:14 -0700

Well, approaching it from an automotive perspective, and I'm not sure you can, it's either timing or fuel delivery or both. Sounds rich. You get that with no advance and proper carburetion, proper advance and over-rich mixture or both. These things advance manually I think (at least on my 75 HP '65 Evinrude - that's why the magento has to be synched to the throttle). I'd probably start there, i.e., understanding how the timing advance is supposed to work. Also, look at the plugs. Are they fouled or sooty, etc.

Just my .02 worth.

Michael Frenn (Learning very quickly that terrrestial motors and aquatic motors can be VERY different!)

  ----- Original Message -----
  From: Eric Graczkowski
  To: Boat List
  Sent: Saturday, June 08, 2002 2:58 PM
  Subject: Loss of power under load

  Question about conditions under a load.
  I have a Sportsman 150 with a V6. At idle I have no problems in forward or reverse. When I open the throttle, in gear it never winds out. I can get 11 mph tops. When it is in neutral the motor winds up like a top, no problems.

  Where should I start? Could this be a timing advance problem? It only bogs down (but not completely off) when it is in gear.

  Many thanks ahead of time.

  1966 Sportsman
Received on Sunday, 9 June 2002

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