Motor hesitates when trimmed in down position

KRS62

Cadet
Joined
May 29, 2007
Messages
29
I have a 2003 50hp ELPTO 2 stroke. I have owned this boat/motor for about 3 months now. When getting up on a plane, it seems to not like to be fully trimmed down. It will get up on a plane, but with slight to mild hesitation. If I trim it up, to a point that is ALMOST too high to plane....it runs flawlessly....very strong.

My guess seems to lean towards fuel/carbs or electrical?

- I changed props down to a 13p prop, so it is definately not the prop.
- The fuel lines dont apear pinched or binded up in any part of the trim range.
- It sometimes will do the same thing when in rough water (still when only trimmed down.) It is almost an instant change. Coming out of the smooth water of the river to rough water of the lake....and it instantly has the issue. Trim it up, it's fine! But of course, you want more boat in the water when its rough.

It runs great otherwise. Any thoughts?

thanks!

KRS
 

j_martin

Admiral
Joined
Sep 22, 2006
Messages
7,474
Re: Motor hesitates when trimmed in down position

I have a 2003 50hp ELPTO 2 stroke. I have owned this boat/motor for about 3 months now. When getting up on a plane, it seems to not like to be fully trimmed down. It will get up on a plane, but with slight to mild hesitation. If I trim it up, to a point that is ALMOST too high to plane....it runs flawlessly....very strong.

My guess seems to lean towards fuel/carbs or electrical?

- I changed props down to a 13p prop, so it is definately not the prop.
- The fuel lines dont apear pinched or binded up in any part of the trim range.
- It sometimes will do the same thing when in rough water (still when only trimmed down.) It is almost an instant change. Coming out of the smooth water of the river to rough water of the lake....and it instantly has the issue. Trim it up, it's fine! But of course, you want more boat in the water when its rough.

It runs great otherwise. Any thoughts?

thanks!

KRS
Carb floats might be adjusted a touch too high, causing it to flood if trimmed in past level. Tuck it under with the cover off, engine off, and pump the primer. If gas leaks out the carb with a normal squeeze, this is it.

You can overpower any carburetor with a white knuckle squeeze, so don't do that.

hope it helps
John
 

KRS62

Cadet
Joined
May 29, 2007
Messages
29
Re: Motor hesitates when trimmed in down position

That is a great suggestion. I will give it a test. Thanks!

KRS
 
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