User Tag List
Thanks: 0
Likes: 0
Results 1 to 6 of 6
Thread: Etec 250 HO Vibration
-
05-22-2012, 03:11 PM #1
5000 RPM
- Join Date
- Sep 2008
- Location
- Delaware River,NJ
- Posts
- 354
- Thanks (Given)
- 1
- Thanks (Received)
- 6
- Likes (Given)
- 0
- Likes (Received)
- 6
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
Etec 250 HO Vibration
Just picked up a new 2012 Etec 250 HO and there is vibration around 1500 RPMs.
The dealer said this is normal.
I tried 3 different props.
Anyone else experiencing this?
-
05-22-2012, 04:43 PM #2
7000 RPM
- Join Date
- Sep 2005
- Location
- Bristol, WI
- Posts
- 2,988
- Thanks (Given)
- 24
- Thanks (Received)
- 104
- Likes (Given)
- 770
- Likes (Received)
- 601
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
Through acceleration, this is normal.....
Larry Gempp Jr.
Proud HydroStream Powertour Member
Current Ride - 2024 22 Liberator - 450R
-
05-22-2012, 05:09 PM #3
7000 RPM
- Join Date
- Oct 2003
- Location
- St Cloud
- Posts
- 2,268
- Thanks (Given)
- 0
- Thanks (Received)
- 1
- Likes (Given)
- 0
- Likes (Received)
- 0
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
It is switching combustion modes (sorry I don't remember the exact phrase for it) around those rpms, my 225HO does that as well..
-
05-22-2012, 07:17 PM #4
5000 RPM
- Join Date
- Sep 2008
- Location
- Delaware River,NJ
- Posts
- 354
- Thanks (Given)
- 1
- Thanks (Received)
- 6
- Likes (Given)
- 0
- Likes (Received)
- 6
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
Thanks. Picked up 10 mph from my 1995 Evinrude 225 Vindicator. Breaking 70 mph now.
-
05-25-2012, 07:06 AM #5
5000 RPM
- Join Date
- Jun 2006
- Location
- New South Wales, Australia
- Posts
- 685
- Thanks (Given)
- 0
- Thanks (Received)
- 0
- Likes (Given)
- 0
- Likes (Received)
- 1
- Mentioned
- 0 Post(s)
- Tagged
- 2 Thread(s)
Stratified mode to normal mode CHANGEOVER point blip
Yes there is a slight hesitation when the motor changes over from "stratified mode" to normal load. I believe an E-TEC 250 uses only .3 of a gallon per hour at idle (yes .3). Many times less than similar outboards. The hesitation can be more pronounced if the motor is over propped. BRP's recomendation "OPTIMUM RPM" is that the motor's RPM with any load at wide open throttle should not be less than 5500rpm & up to 5800rpm.
Originally Posted by spbutler
OMC/BRP HERITAGE: http://community.webshots.com/user/LIQUIDNIRVANA
OMC/BRP BROCHURES: http://community.webshots.com/user/LIQUIDNIRVANA2
-
05-26-2012, 07:19 AM #6
5000 RPM
- Join Date
- May 2006
- Posts
- 400
- Thanks (Given)
- 0
- Thanks (Received)
- 3
- Likes (Given)
- 3
- Likes (Received)
- 17
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
LN is correct that you are probably feeling the transition from the lean combustion mode to the regular combustion mode. The effect can be minimized by correct propping and a sharp tech who knows how to do the TPS calibration procedure and how to vary the settings slightly.
By the way, your old carbureted 225 had a similar rough spot in the 1200-1800 rpm range due to the engine running rich from the changeover of the carbs low speed to high speed system. It could also be minimized by correct propping and the tweaking of the spark to throttle synchronization.
Reply With Quote
