How to rebuild a 2 stroke outboard engine

Push the wristpin through the piston and needle bearing until it is flush with the piston. Preference is given to tested products proven brands.

How to service a 2-stroke outboard engine Do it yourself.

How to rebuild a 2 stroke outboard engine. How to service a 2-stroke outboard engine Do it yourself. This step-by-step guide takes you through a service of a small 2-stroke outboard. Drain the old fuel.

Check the spark plug. Check the recoil starter. Remove strip and clean the carburettor.

Remove the gearbox to check the water pump. On smaller engines with only one gear. Hi I am thinking about rebuilding a 15HP Yamaha circa 84-86.

Ive done this numerous times with inboards diesel and Atomic 4s. Usually I would take the engine apart and bring head crank and block to machine shop for pressure testing acid bath boring re-surfacing the headblock etc. Im sure machine shop would recommend some of the stuff but I want to go in requesting services specific.

A typical rebuilt midsize outboard motor from the 1980s to 2000 between 90 to 115 horsepower will cost at least 3500 if purchased from a discount dealer. It will likely cost around 4500 if purchased from a local full-service dealer. Rebuilding your engine will cost around 2500.

Remove strip and clean the carburettor. Located on the front of the engine the carburettor is responsible for ensuring the correct blend of 2-stroke fuel mix with air. A clogged-up carburettor means the engine will run rough and wont idle properly.

Just enough to hold it in there. Set the piston on the rod and line up the hole in the piston with the hole in the rod and needle bearing assembly. Make sure the piston is facing the right way.

Push the wristpin through the piston and needle bearing until it is flush with the piston. A socket can be used to help you push just find one that is the. Perhaps its an outboard in need of a rebuild.

In either case heres a basic 5-step starting procedure you can use to fire-up that oldie but goodie on the transom. Five Steps to Starting an Older 2-Stroke Outboard Engine. Engine tilted fully down this makes it easier for fuel.

Generally 25 to 1 at wide open throttle. To do this you need to add additional oil to the fuel supply. On a non oil injected engine this means running two pints of 2 cycle oil to every six gallons of gas.

On an oil injected engine this means adding one pint of oil to every six gallons of gas. During this period of time I like to avoid using high detergent gasoline or running products like Ring Free. Rebuilding a two-stroke involves removing and replacing less moving parts than a four-stroke motor.

A crankshaft piston kit bearings and seals can have a two-stroke motor running like new again. A two-stroke motor needs fewer gear oil changes but needs oil mixed with fuel. If you have an OEM shop manual why not drop the lower unit and replace the water pump with a complete kit.

You will need to drop the LU anyway if youre going to rebuild the powerhead and the water pump is way overdue. 50 to 55 psig is pretty bad. The service manual will be especially helpful for this task as the recoil often has a number of small parts and a spring or two to deal with.

Get it apart and use solvent to clean off any old grease. Replace any parts that appear worn like rope guides or pawls that grip the flywheel. Re-lube and then reassemble with a new rope or cable.

OUTBOARD POWERHEAD KITSPARTS PACKAGES FOR REBUILDING POWERHEADS. These kits contain all the parts you will commonly need to complete the overhaul of your outboards powerhead. If the determination has been made that you need to rebuild we have the necessary items.

And the nice part is you will pay less for the kit than you would for the. Remanufacture your outboard powerhead save up to 23 less than buying a new outboard engine with a quick turn around time. Call for a free consultation.

Call 855-747-0100 for a FREE Consultation. Most 2-stroke engines require that you mix the fuel with a special oil. In most small 2-stroke engines like those for string-trimmers and chainsaws the oil is mixed with the gasoline.

In larger engines the fuel is injected into the engine. This oil is required to lubricate the engine. In 4-stroke engines the lubricating oil is in the crankcase.

They clog and lean the engine out. There is a tie for second most common reason for failure one is the automatic oil pumps. They fail and take the engine with them.

The other is water ingestion into the engine wiping all oil off the cylinder walls scoring the walls piston skirts along with bending rods twisting cranks. Johnson Evinrude 2 stroke rebuilt remanufactured powerhead. Johnson.

Johnson. Johnson. Johnson Evinrude 6 cyl 60 Looper -.

YAMAHA 2 STROKE POWERHEAD KITS. PARTS PACKAGE KITS FOR REBUILDING POWERHEADS. Look Here For POWERHEAD KITS FOR US.

BRAND MARINER OUTBOARDS. T hese kits contain most all the parts you will commonly need to complete the overhaul of your outboards powerhead. If the determination has been made that you need to rebuild we have the necessary items.

2-Stroke Top End Rebuild Guide. Top-end rebuilds are a necessary maintenance task associated with high performance off-road two-stroke motorcycle ownership. The common belief is that performing a top-end rebuild is a simple task that anyone can do which is true however the devil is in the details.

Sloppy incomplete or top-end builds done. During a short block rebuild the electrical components flywheel reed plate intake and carbs will all be removed. Then all of the cylinders will be bored and new pistonspistons rings wrist pins spark plugs thermostats gaskets the main seals and bearings will.

Increasing the capacity of two-stroke outboard motors. To improve the position it is necessary to choose the oil for two-stroke outboard engines carefully. Preference is given to tested products proven brands.

Selecting an expensive oil for two-stroke outboard engines you can get. Located in Central NC. Between Lake Norman High Rock Lake Badin Lake Tuckertown and centrally located on the US EASTCOAST EastCoast Outboard provides quality outboard motor rebuild service for All major manufacturers from 99HP to 300HP.

We have up to a 6 year warranty on all rebuilds. We have one of the fastest turn around times in the south. How to mix oil for break-in of new or rebuilt 2-stroke outboard motors The first 10 hours of use are when you are breaking in your new or rebuilt engine.

Its important to follow these guidelines so that your engine and all its parts are sufficiently lubricated and will continue to run smoothly in the long run. Rebuilt Powerheads for Yamaha Outboards. Remanufactured Yamaha powerheads come with a one-year limited warranty.

Core value is primarily based on the condition of your block and crankshaft. Our prices include shipping in the continental US including the return of your core for credit.