pe'lle,r120imrm,blue co,lo,ur,a,n,dthe motor will operate within its norm a l spe ed ran ge 1 0 k m / h. lf the boat is lighter than average lru bb er b oa ts), u s e a higher pit c h ip,rorpetliler 160,m'm,red colour. Tihe motor will operate over the speed range of 15 km/h,
Repla c e o i l i n p r o p e l l e r h o u s i n g Lubricate starter device Lubricate throttle control cable
An important fact to remember is that the speed ot the boat is determined by t he de sig n of the hull and t he h. p. of t he en gin e used . T he m ain pur pos e in cha ng ing a p rop eller is t o per m it the motor to operate at the maxirnum efficient speed for which it was des igned
i
Clean the entire fuel system. Clean and empty the carburettor. Refill the empty fuel tank with 1 litre of mixture (gasoline + anti-corrosion oil in 1 0 : 1 r a t i o ) . L e t t h e e n g i n e idle ( l o w r . p . m . ) f o r t w o m i n u t e s . Then rernove the fuel tank with the rest of the mixture, rinse the, inner walls of the fuel tank by shaking it vigorously and leave the mixture in it.
AILSACRAIG4
Approxi,mately every g0 days: Storage of the motor
ullrsGf€wthe ,sparking p|ug and pull the starter a few tiimes
To protect all moving parts of the motor against rust, if the motor is to be stored for a long period, clean all outer parts and surfaces especially if the motor had been used in salt water. Use a soft yag, or sponge and water. Remains of salt water within the motor should be removed by means of running water. Inner walls of motor leg should be washed out. For this purpose put the motor, with its lower unit into a fresh water tank and run motor for 5-1 0 minutes under f ull throttle. You can also f lush out the motor leg by means of water circulation. Water is directed into the motor leg by means of a hose connected to a tap and itXed to the water inlet situated under the anticavitation wing, F ig. 2/20 . lt is most im por t ant t hat during the flushing out by means of a hose the motor stands in a vertical position, so that the water can f ind its way out through the exhaust outlet. After flushing the interior let the engine run out of water for 3-4 rninutes at quarter th rottle to dry.
rinse the inner walls of the fuel ta,nk by vi,g,orous shaking
Prepar,ing the storage
ffiotor
for
use
after
clean the sparking plug, empty the anti-corrosionmixture and refill the fuel tank with fresh mlxture ratio 25 : 1 (4 o/o). Do not use stale mixture as this may cause serious damage to the engine. Run the motor for five minutes under varying speed
FAULT FINDING Even though you observe all the operating instructions carefully, sometimes faults will occur. If the carburettor is flooded as a res ult of us i n g t h e p r i m e r p u m p o r u s i n g t he c hok e w h i l s t t h e e n g i n e i s w a r m , proceed as follows: 18
AILSA CRAIGLTD. SALFORDS, REDHILL, SURREY Telephone:Horley 2321 (e lines) Gables: Ailsotor, Rodhill, Surrey
