Mercury 2 Stroke 40 Hp Manual
Proven Reliability.
Mercury's proven TwoStroke engines deliver easy starting, gutsy performance, and great all-round reliability. Across the range you’ll find an array of features that help keep your boating experiences more enjoyable and trouble-free. Features such as largest engine capacity displacement, giving you more low-end thrust, advanced carburettor design and fully-regulated, high output alternators powering all your marine electronics will ensure absolute boating excellence.
Mercury's proven TwoStroke engines deliver easy starting, gutsy performance, and great all-round reliability. Across the range you’ll find an array of features that help keep your boating experiences more enjoyable and trouble-free. Features such as largest engine capacity displacement, giving you more low-end thrust, advanced carburettor design and fully-regulated, high output alternators powering all your marine electronics will ensure absolute boating excellence.
Mercury 40 TwoStroke Pdf User Manuals. View online or download Mercury 40 TwoStroke Operation, Maintenance And Installation Manual, Operation, Maintenance & Installation Manual.
Embracing Technology.
The simple TwoStroke design creates an engine that is less complex and lighter, with automatic low oil level warning for an added peace of mind.
1965-1989 Mercury 45-115HP 2-Stroke Outboard Repair Manual Mercury 40 / 50 / 60 Hp EFI 4 Stroke Outboard Repair Manual Improved 1997-2003 Mercury 75 90 100 115 125HP 2-Stroke Outboard Repair Manual Download pdf. Download Mercury outboard repair manuals instantly. Mercury repair manuals cover every aspect of maintenance and repair. Manuals for 1964 thru 2005 models. DOWNLOAD Honda Repair Manual 9.9 15 25 30 40 50 75 90 130 HP December 23. How to Compression Test on Mercury 2-Stroke Outboard Engine November 17. Need an Owner’s Manual for your Mercury Engine to perform maintenance, replace parts or just learn more about your engine? Mercury has made it easy for you to receive a free printed copy or to download and print your own copy. To order a printed version of the Service Manual for your particular Mercury Outboard or MerCruiser Engine, click here.
Running Quality.
Electric CDI ignition delivers high voltage for quick, sure starts and added fuel efficiency. Innovative sound attenuator helps absorb engine sounds before they can reach the ear, resulting in a quieter running engine on the TwoStroke 40 hp and higher models.
50:1 100:1? Finding the right mix for your outboard.
Why mix Fuel & Oil anyway?
Barotrauma download for mac. Any outboard described as a 'two stroke' engine is an internal combustion engine than burins injected fuel through a reduced power cyle of just ignition and exaust (more info about the difference between two stroke and four stroke engines here. ) Due to this design it is necessary to provide the engine with lubrication (the oil) actually within the injected fuel (the petrol or gas). The relative proportions of these two components is called the 'fuel mix ratio'.
1999 Mercury 40 Hp 2 Stroke Manual
Getting the mix right
Every engine will have it's own fuel mix ratio, often mandated by power, intended use and age of the outboard and manufacters state this required mix ration and any tolerance (if there is any!) in the owners manual. Not running the right mix can cause poor starting, performance degradation, increase wear and tear and excessive smoke from the exhaust.
If however you don't have the original owners manual then you'll need to determine the right mix prior to use. Manufacturers often print the fuel mix ration on the inside or outside of the cowling, the fuel filler cap or sometimes embossed onto the fuel tank itself.
If all else fails a quick internet search of your outboard make, model and age will quickly reveal the required ratio. If you're absolutely stuck we recommend a mix of 50:1 for outboards older than 1980 and 100:1 for outboards manufactured since 1980. That is 50 parts fuel to 1 part oil and 100 parts fuel to 1 part oil respectively.
Mercury 40 Hp 4 Cylinder 2 Stroke Manual
Mixing the Fuel
Once you've landed on the ratio you need actually do the mixing.
Always store, handle and mix outboard engine fuel in a well ventilated space, ideally outdoors and away from any source of ignition of chance of contamination, i.e. not on the ground of some dusty car park!
Prepare you fuel, oil on a bench or other suitable surface and have a clean rag and medium sized funnel handy. Aim to add the oil to the fuel rather than the other way around so have a suitable rounded number volume of fuel ready in a container (Starting with 5 Litres of petrol in a tank is ideal) and then added you two-stroke oil through the funnel mixing thoroughly.
Once you've finished mixing clean-up an spilt fuel or oil and make sure to commit to memory or note down which fuel tank has the mixed fuel ready to go.
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