I'm still fairly new to this particular motoer and am still sorting out its quirks. I am finding it tends to load up the plugs at idle, and runs a little rich at all speeds. I tried to set the floats at 1.0 " drop down from the float bowl top surface (under side surface of throttle body). I'm...
I've been pretty happy with this motor so far but I'm experiencing a nuisence problem. At all throttle settings above say 2000 rpm the motor has a "rumble" kind of like it has a cold. It isn't really a miss or stumble, it is like it is having trouble "clearing it's throat". When I first rebuilt...
I replaced my waterpump yesterday, and noticed a "rumble" when the engine is rumming at 3200 to 4500 rpm. I'm thinking carburation but is it possible that if the prop was on too tight that this might be the source?
I have only about 3 hours on this motor since I bought it and have gone through the whole thing top to bottom. Yesterday I experienced a new "quirk" The motor idles great, turns up full rpms, (fuel is fresh, with oil mixed exactly 50:1), but at between say 3200 and 4500 rpm there is a...
Here's a puzzler. My motor started to run really hot about 50 yards from the ramp. I watched the temp gauge start up off the pin really quick. I shut down when it went past 160 and paddled back in. Here's the puzzling bit. I installed new head gaskets, t'stats, water deflectors, back plate...
How much is involved in upgrading the old 88Spl to the 112spl specification? I believe displacement and maximum spark advance are the same.<br /><br />I'm thinking I could put the 112Spl inner and outer exhaust blister on the back of the block and rejet the carbs to the 112 size jets.<br /><br...
My hull is a very old deep v Penn Yan outboard. The boat has always generated a fair amount of spray in a V that seems to start at the front of the outboard gearcase (this may be related to my previous post on unusual water flow from under the engine pan). I've moved the motor up one hole on...
When should water be coming from the relief ports under the back of the "pan"? I see a lot of spray at rest, and idle, but none when at speed (at least moderate speed, say 3500 to 4000 rpm. My older V4s (1978 85hp and 1976 115hp) always had at least a dribble coming out when under way. Like...
I am probably being anal about this one (as engineers are known to be anyway..), but here goes; <br /><br />When under way, there is warm water exiting the front of the two piece plastic cover under the engine pan. The pan area under the powerhead stays dry. I also notice when running the...
I'm wondering what correct technique is for using the primer. My older outboard would start when the choke toggle switch was held "on" until the engine started. With this motor I'm holding the choke switch as before but I seem to be flooding the motor. I bought the motor used and didn't...
I have recently gone through this engine top to bottom. A previous owner had spun the impeller and shut down when the horn went off. I still found head gaskets full of pin holes, one partially melted by pass valve, and other signs of overheat. Basicly I did every gasket in the powerhead...
