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ContinuousWave: Post-Classic Whalers
170 Montauk 4stroke Performance
|Author||Topic: 170 Montauk 4stroke Performance|
posted 08-06-2003 08:02 PM ET (US)
This is probably all prop, but does anyone feel a bog at 4000RPM on a WOT drop from idle? The motor goes fine after this ever so slight bog.
posted 08-06-2003 08:12 PM ET (US)
Max, I haven't had this problem. I've got to hold mine back under acceleration. What kind load, people wise? Do you know what prop they gave you, 18 pitch? Jim
posted 08-06-2003 09:28 PM ET (US)
18P SS Vengence Prop.
Varying loads. I will update next week as I am off boating all week!!!
posted 08-07-2003 12:59 AM ET (US)
What make motor, year and what hp are you talking about?
posted 08-07-2003 08:48 AM ET (US)
Perry, He's got the Mercury 90 4 Stroke on that 170, which is what I have.
Max, with a loaded boat 6 to 7 people, the boat is slower out of the hole as expected but at 4300RPM there is a surge in power. I don't know if that was what you are feeling on your boat. Jim
posted 08-07-2003 09:19 AM ET (US)
Maybe I am feeling the surge after 4000 rpm not a bog. It is just different from my old 17 footer 2 stroke performance.
posted 08-07-2003 10:39 AM ET (US)
I have a Montauk 170 with a Mercury 2003 90HP 4-Stroke / 18P Vengeance prop. I also notice a slight bog or lack of acceleration at 4000 RPM when go immediately from idle to WOT. It is very slight at sea level but very noticeable at 5000ft elevation. If I accelerate in a normal fashion there is no bog and the motor performs beautifully. I am under the impression that a carb adjustment and synchronization is needed.
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