Mariner 115 motor manual

For out-of-season storage information on Autoblend units, refer to Section 8 in this service manual. If a speedometer is installed in the boat, disconnect the pickup tube and allow it to drain. Reconnect the tube after draining. Check and refill gear housing with Quicksilver Gear Lube before storage to protect against possible water leakage into gear housing which is caused by loose lubricant vent plug or loose grease fill plug.

Inspect gaskets under lubricant vent and fill plugs, replacing any damaged gaskets, before reinstalling plugs. Out-of-Season Battery Storage 1. Remove battery as soon as possible and remove all grease, sulfate and dirt from top surface.

Cover terminal bolts well with grease. Remove battery from storage every 60 days. Check water level and place on charge for 5 to 6 hours at 6 amperes. DO NOT fast charge. Corporations internationally have settled on adoption of I. International Standards Organization engine test standards, as set forth in I. Summer Conditions of high temperature, low barometric pressure and high humidity all combine to reduce the engine power. This, in turn, is reflected in decreased boat speeds--as much as 2 or 3 miles-perhour 3 or 5 Km per-hour in some cases.

Refer to previous chart. Nothing will regain this speed for the boater, but the coming of cool, dry weather. The horsepower, that any internal combustion engine produces, depends upon the density of the air that it consumes and, in turn, this density is dependent upon the temperature of the air, its barometric pressure and water vapor or humidity content.

Accompanying this weather-inspired loss of power is a second but more subtle loss. At rigging time in early spring, the engine was equipped with a propeller that allowed the engine to turn within its recommended RPM range at full throttle. With the coming of the summer weather and the consequent drop in available horsepower, this propeller will, in effect, become too large. Consequently, the engine operates at less than its recommended RPM.

It is a known fact that weather conditions exert a profound effect on power output of internal combustion engines. Therefore, established horsepower ratings refer to the power that the engine will produce at its rated RPM under a specific combination of weather conditions.

This secondary loss, however, can be regained by switching to a smaller pitch propeller that allows the engine to again run at recommended RPM.

For boaters to realize optimum engine performance under changing weather conditions, it is essential that the engine have the proper propeller to allow it to operate at or near the top end of the recommended maximum RPM range at wide-open-throttle with a normal boat load. Not only does this allow the engine to develop full power, but equally important is the fact that the engine also will be operating in an RPM range that discourages damaging detonation.

This, of course, enhances overall reliability and durability of the engine. Conditions Affecting Operation 1. Shifting weight to the rear stern 1. Generally increases top speed. If in excess, can cause the boat to porpoise. Can make the bow bounce excessively in choppy water. Will increase the danger of the following wave splashing into the boat when coming off plane.

Shifting weight to the front bow 1. Improves ease of planing off. If excessive, can make the boat veer left and right bow steer. Boat Bottom: For maximum speed, a boat bottom should be nearly a flat plane where it contacts the water and particularly straight and smooth in fore-and-aft direction.

Hook: Exists when bottom is concave in foreand-aft direction when viewed from the side. Rocker: The reverse of hook and much less common. Surface Roughness: Moss, barnacles, etc. Clean surfaces when necessary. Gear Housing: If unit is left in the water, marine vegetation may accumulate over a period of time in certain types of water.

This growth must be removed from unit before operation, as it may clog the water inlet holes in the gear housing and cause the engine to overheat. Detonation creates severe, untimely, shock waves in the engine, and these shock waves often find or create a weakness: The dome of a piston, piston rings or piston ring lands, piston pin and roller bearings. While there are many causes for detonation in a 2-cycle engine, emphasis is placed on those causes which are most common in marine 2-cycle application.

A few, which are not commonly understood, are:. Compression check is important because an engine with low or uneven compression cannot be tuned successfully to give peak performance.

It is essential, therefore, that improper compression be corrected before proceeding with an engine tune-up. Over-advanced ignition timing. Use of low octane gasoline. Propeller pitch too high engine RPM below recommended maximum range. Lean fuel mixture at or near wide-open-throttle. Spark plugs heat range too hot — incorrect reach — cross-firing. Check and record compression of each cylinder.

Variation of more than 15 psi Inadequate engine cooling deteriorated cooling system. Detonation usually can be prevented, provided that 1 the engine is correctly set up and 2 diligent maintenance is applied to combat the detonation causes, listed, preceding. Table Of Contents Description. Test Procedures. Troubleshooting Tips.

Test Sequence. Ignition System Test Chart. Stator Test. Moreover, some models can be purchased for quite reasonable money;. The mariner outboard motor is available in approximately countries around the world. It is in demand among different categories of boaters, as it is presented in different lines; The most modern and high-tech outboard motors of this brand are two-stroke and four-stroke outboard engines.

They are very powerful, reliable and safe. In addition, it is these outboard models that are considered to be very environmentally friendly. The power of such boat engines is from 2 to horsepower.

Mariner Outboard Engine. Comments: Connect to Facebook. Use quick search! Contact us. Mariner Service Manual. Mariner 70 Service Manual. Kindly help. Steven Seguro Saturday, 31 October Hello, The Russian manual was a very good start. Do you happen to have one that is written in English? Thanks in advance. Rodel Villaluz Wednesday, 21 October I need service manual of mercury outboard motor from the lowest how to the highest HP. I need a service manual of mercury from the lowest how to the highest HP.

How can I get. Rich W Tuesday, 20 October I'm looking for a service manual for a Mercury Outboard 9. Thank you in advance.

John Spindler Tuesday, 13 October I'm looking for the specs, owners manual. Is it a 2 or 4-stroke, etc Thanks, jjspin gmail. Looking for the service manual for a My email is mehansazeh gmail. Ken Saturday, 03 October Brian Monday, 28 September Do you have one for my application? Harvey Wednesday, 09 September DNulsen Monday, 07 September I'm looking for a service manual on a 35hp Mercury electric start with power trim, with remote forward controls. Serial 0B Barag Sunday, 30 August I am looking for instructions on installing a tiller conversion kit on a , 15 hp 2 stroke Mercury outboard.

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Specifically the ignition system. I have one with no spark. Thank you for your service. I am looking for Mercury service and maintenance for 35hp 2 stroke S , electric start, tiller. Hello, its about an outboard hp efi, modell. It has only been running hours, during 10 years.

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Brian Yount Saturday, 27 June John Saturday, 27 June Emyr Evans Wednesday, 24 June I'm unsure of the date of manufacture and I think the serial No JB? Any idea were I can find an operating and service manual for this engine? Many thanks. Steve Kenyon Saturday, 20 June I'm looking for a manual for a 4 HP 2-stroke Mercury outboard from It's Belgian made, two cylinder, serial , although Mercury advised that I'd need to put a zero before the serial number so, I believe it's model or Thanks, Steve.

Mike Bremner Wednesday, 17 June Hi, I am looking for a service manual for an 80 hp 4 cyl 2 stroke ser I understand the model is Saifful nasir Friday, 12 June Ronald McEwen Thursday, 28 May Loosen timing belt tensioner bolt and remove tensioner spring.

Remove timing belt and driven sprockets. Remove cylinder head cover and spark plugs. Install tensioner spring and tighten timing belt tensioner. Measure intake and exhaust valve clearance using the Valve Clearance Measurement Steps below. Measure and record the intake valve clearance for cylinders 1 and 2. Measure and record the exhaust valve clearance for cylinders 1 and 3. Measure and record the intake valve clearance for cylinders 3 and 4. Measure and record the exhaust valve clearance for cylinders 2 and 4.

If adjustment of intake or exhaust valve clearance is necessary out of specification follow Changing Pad Thickness below. If no adjustment is necessary skip to step 11 on. Align timing marks on driven cams. Loosen timing belt tensioner and remove tensioner spring.

NOTE: Do not mix valve train parts valve pads, camshaft caps, camshafts. Keep individual cylinder parts together. Remove camshaft caps and camshafts.