Spark plug failure may be the result of contributing factors, such as wrong fuel-air mixture, available ignition voltage, carburetion adjustment, etc. GROUP 8. The oil must therefore contain or be provided with an affinity for metal. It must burn cleanly with a minimum of smoke. It must mix easily with gasoline and remain in suspension. It must inhibit the formation of varnish, rust or other engine deposits. Mix fuel in a clean container.
Pour about one-half of the gasoline into a container. Add all of the oil and mix well. Then add 'remainder of gasoline and mix thoroughly. This engine is designed to operate on a 1 fuel mixture.
Break-in period: About an hour break-in under light load or a break-in until consume 8 - 10 litres 1 fuel mixture lIiuTE: 1.
Do not use low grade multi-viscosity oil. Excess oil will cause carbonization of pistons, spark plugs, ports, and exhaust systems, causing loss of power. Too little oil will cause a lean condition and may cause piston seizure, over heating and rod end bearing failure. If oil brands are changed, it is advisable to clean excess carbon from pistons, heads and exhaust-ports.
GROUP 9. Proper torque application prevents fasteners from loosening or breaking-in critical service. It also minimizes wear and eliminates premature or needless repair costs.
Following uniform torque application sequence patterns assures optimum performance from precision machined close tolerance assemblies. On vital engine parts, torquing negligence could be costly. Torque is a force which tends to produce rotation. The measurement of this force is expressed in units of force and length. There are at present two basic systems of units used to express torque: the English and the Metric. In the English System, the units of force are the pound or ounce and the length is the foot or inch.
In the Metric System, the unit of force is expressed in grams GM. GROUP Crankshaft Bearings. Spin by hand and check for roughness. Check bearing mating surfaces and labyrinth seal area. In some instances the labyrinth seal rings gouge into the case halves and cause a small amount of metal to flare to each side.
This condition is not necessarily damaging to the engine. Crankshaft Seals. Inspect for hardness or cracking. Always install new seals upon reassembly. Connecting Rod Small End Bearings. Check for roughness. Connecting Rod Large End Bearings Check by rotating the rod and moving from side to side.
Magneto Breaker Points. Inspect for pitting, install new points. Cylinder Bore Inspect for scoring or distortion. Refer to cylinder service in this section for detailed procedures. Piston and Rings. Check for stuck rings and signs of piston damage from detonation. Cylinder Heads and Gaskets.
Check for leakage. Always install new gaskets and torque the heads according to the torque chart in this section. Crankshaft Runout. With the crankshaft installed and case halves torqued, polish the PTO end of shaft with fine emery cloth to remove nicks or foreign material which will result in inaccurate readings. NOTE: Serviceable shaft total runout reading should not exceed 0. It is important that the cylinder walls are concentric, smooth and perpendicular to the crankshaft center line. All new engines have these characteristics inherently built into them, however, with the stresses and heat of operation the bore may distort or score resulting in loss of compression and power.
It is then that the serviceman's job of reconditioning the cylinder and restoring it to its new condition must be performed. If there is a considerable amount of blow-by carbon deposit usually brown or black under the piston rings, the cylinder should be removed and honed. The piston rings should be replaced also. A visual inspection after the cylinder head is removed will reveal if the cylinder should be removed for honing. Inspect for any scratches or signs of scoring or brown areas which indicate ring leakage and distortion.
Before discarding any cylinder it should be honed. If the cylinder is damaged so that it cannot be cleared without exceeding the maximum standard piston-cylinder clearance recommendations, it may be oversized 0. Fuji supplied 0. NOTE: When ordering oversize cylinders and pistons, refer to the engine model tag located on the engine crankcase of fan housing for the correct application.
Contact Breaker - The contact breaker points on the magneto stator plate is a kind of switch which cuts the primary current generated in the primary coil by the action of the rotating cam inside the flywheel. Point Gap - To generate high voltage in the ignition coil, it is necessary to interrupt the flow of current in the primary coil. The current flow is interrupted when the contact points open. If the point gap is too small, the current is not completely interrupted because some current will "jump the gap.
In either case performance is influenced because high voltage cannot be produced consistently. Point Gap Adjustment - To adjust point gap, rotate the flywheel until the cam opens the points.
Stop the flywheel when the point gap is the greatest. Measure the gap with a common feeler type thickness gauge.
If the gap must be reset, loosen the point anchor screw and move the point anchor plate in the necessary direction to either increase or decrease the gap as necessary, Fig. NOTE: When the flywheel is in the position that opens the point gap to the maximu, this adjustment can be done through the "window" in the flywheel, Fig.
The timing mark on crankcase and flywheel can be seen when removing blower housing 1 by loosening ten bolts for crankcase and cylinder baffle. When both marks meet, the timing will be 80 B. The crankshaft should be rotated counterclockwise past the point of correct timing and then rotate the crankshaft clockwise until the light or buzzer cha,nges. This will eliminate slack or free play within the internal workings of the engine.
Running advanced timing: 1 Static timing is performed without the engine running. At this position, the governor weights in the flywheel are in the retarded position. This can be done by locking the weights open by inserting a cap screw through one of the rope starter pulley holes in the flywheel. This flywheel magneto applies a new control unit called "Capacitor Discharge Igniter," which works alike with contact breakers of ordinary flywheel magnetos.
Thus, they do not use any contact breakers and conventional condensers. These types work as electric power source for said C. Hundreds voltage generated by them are stored in each primary coil of ignition coils in a timed relation with engine operation. Then, a secondary coil generates high voltage electricity for igniting gaseous air.
So, there is no necessity to conduct any adjusting work on the magneto if care is given to the following points: I Removing of dust and oil 2 Checking of connections of leads and couplers 3 Checking of screw loosening. If resistance measures il, it is normal.
Normal resistance is 63 il. Normal resistance is 0. Check breaking down of a primary coil and secondary coil by using a tester. Normal primary resistance and secondary resistance are 0. UNIT Clean with care and check the following points by a tester: 1 Resistance between case and lead wire white , which should be The resistance must be 2Mil or more.
In this case dial of the tester must swing once and must return to its place. The tester to be used for the above mentioned checking must be for the following specifications: DC Voltage: 0 - 25,1,2.
Timing mark on blower housing 2 and cooling blower can be seen when removing blower housing 1 by loosening six bolts. At this moment, the mark on cooling blower indicates 27S B.
NOTE: a The check for ignition timing shall be made at 3, rpm. Because, the removal of blower housing 1 does not make cylinder cool. This mark is located on. Loosen the two stator plate fastening screws and rotate the plate in the direction required. Counterclockwise advances timing. Refer to the respective engine timing diagram for mark identification and range. Install the starter cup and recheck dynamic timing.
On tip of blade check if the circle is set within the limits. Adjust when it swerves from the limits. Timing light should, be set to high tension cord on the magneto side. This check is not necessary in common. There are no parts availability or replacement engines i,or the dealer knows of. I would also like to keep mine going.
Forrest A Registered. I have a couple of Snappers with the Robin 2 stroke. Great engine. I have been able to get air filters and the like from Tulsa Engine Warehouse. Filters are commonly available on the web, but TEW has lowest price. Not sure about coil availability, but I recall seeing it on the web here in USA. Do you have the part number?
If I see a post that you still need part numbers, I'll respond next week here on the board with coil numbers. Good luck You must log in or register to reply here. Similar threads K. Looking for some help with a Wisconsin Robin Engine. Replies 5 Views 13, Don't forget your local dealer probably has a selection of pre-owned golf carts as well.
The term 'regen' is short for regenerative. It feels like a break is being applied as you travel down a hill, but what is really happening is your golf cart is using the speed increase you get when going down a hill to charge up the batteries. Determining if your golf cart has the regen system. The first thing to check for is that your golf cart uses a small electronic switch to shift into forward and reverse.
If you see this you have determined that it is a regen Club Car What gas engine does my Yamaha have? View All. About the Author. Always here to help don't hesitate to ask. Find out more about Michael Eddie. What Is, Why Is
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