Low RPM's

freelunch

Petty Officer 2nd Class
Joined
Mar 25, 2007
Messages
112
Hmm, well after alot of work my 4.1 165hp L6 is running great, no misses, makes a nice holeshot and idles beautifully. However, I can't seem to figure out why it won't reach WOT rpm.
At full throttle she is only turning about 3800 rpms and no higher. I've checked the fuel system and everything is pumping clean.
The carb is fully opened when the helm is at wide open as well.
Also when I am at 3800 and cruising it runs very nicely, no misses or anything or the sort.
Any ideas why im coming up 500 rpm shy would be greatly appreciated.
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Low RPM's

Here is a list of possibilities.


Low%20Engine%20WOT%20rpm.png
 

csanna2

Cadet
Joined
Jul 14, 2004
Messages
15
Re: Low RPM's

Let me get this strait! You did say it was running good right? Have you checked to make sure the carb is at full throttle?
 

sabastianunf

Petty Officer 1st Class
Joined
Jun 11, 2004
Messages
215
Re: Low RPM's

did it ever hit the correct wot range? if not your prop may be the problem.
 
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