My previous experience has been with 2 stroke engines. Last year I purchased a 90HP Yanaha 4 stroke. I have been told that the bottom unit is lubricated with the engine oil therefore not requiring the opening of a lower plug. Is this true?
Could someone give me their thoughts or experience with this issue? I have a 2006 22 ft Bennington Pontoon powered by a 2006 Yamaha 115 hp engine. With two people on the boat the top speed is 25 mph. The prop has a pitch of 15 degrees. I have been told with this engine and boat size it should...
I have a new 2006 Yamaha j90 4 stroke on a 22' Bennington pontoon. A friend also has the same boat with a 115HP 4 stroke Yamaha. When he goes to full throttle it tops out at 5400 rpm's. My engine seems to evenly throttle up to about 6300 rpm' and runs a what I believe is top speed for the...
I have a 1999 90 HP Johnson outboard. Had it tuned this spring. On the first trip out it idles okay but when throttling up at about 2800 rpm's it seems to shuttter and hesitate. Then it goes to full power and runs okay. What would you suspect?
Yesterday whilecruising down the waterway my engine seemed to stutter/vibrate slightly. After taking the boat out of the water it would not crank. Upon checking the battery posts I found that the positive terminal connector wing-nut was very loose. After tightning the engine started and seemed...
I own a 1996 Polar Salwater series boat. I beilieve these boats were made by Dynasty. It is 17 ' and 86" wide with two 3foot lond by 8 inch high siderails. It has a small center console without a windshield. I have ordered two covers and neither fits very well. Just wondering if someone out...
I need to mount a bilge pump switch on the dash of my center console. It is Fiberglass. Any suggestions or potential problems to consider when drilling or cutting into Fiberglass?
Any suggestions on a very slow leak in a automobile tire? Checked the valve, its ok. Would anyone recommend injecting the sealant with these fix a flat aerosol containers?
Any thoughts on whether using 93 or 89 octane gas reduces carbon build up in 2 stroke engines? I would think there would be some performance improvement.
Can someone commnet on whether it would be unwise or not advisable to mix non-synthetic lower unit oils together? Example Lubrimatic and Penzoil. After refilling the lower unit on an outboard engine I need a bit more to top it off. Seems like all stores in this area do not have regular...
Will the bottom unit fluid replacement hole accept a Lubrimatic screw in to replace fluids or does Suzuki's require a different fitting? Also on my Suzuki DT75 theres two screws on the upper bottom unit. One says oil drain. I have not seen those on the Johnson and Evinrude engines. Was wondering...
When changing the oil in the lower unit of a 1999 Johnson outboard engine the oil was milky. There is no evidence of fishing line,damage or leakage from the lower unit. Last year when the oil was changed I did not replace the rubber "o" rings on the plugs. Whats the chances that this is the...
Zinc Trim tabs on many engines seem to come in two shapes (sizes). Does anyone know why? I need to replace the one on my engine and was unsure which to order. Thanks for any help.
Any reccomendations about using the cans of spray paint and primer sold to repaint the lower power units of engines and areas showing blistering of paint?
On a used boat & Suzuki outboard engine I purchased the stern fin is bent about 5 degrees to the left. Would this or the Zinc trim tab cause the boat to track to the right? Tracking increases with speed.
