
6. | MAGNETO |
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The spark for ignition is furnished by a magneto assembly. The magneto consists of a flywheel, ignition coil | / | ||||
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and contact breaker assembly (including condenser), of which flywheel is mounted on crankshaft and igni- |
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tion coil contact breaker are mounted in crankcase directly. The EY20V type engine normally incorporates a |
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solid state ignition system(T.I.C.) described in 6.5 "SOLID STATE IGNITION." |
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6 |
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The breaker points, which are mountedin the crank- |
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case inside the flywheelshould be checkedtwicea |
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season or whenever the ignition spark becomes weak. |
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If there is an evidence of pitting or pyramidding, the |
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breakerpointsmustbecorrected,andthen | it be- |
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comes necessary toreadjustthe | gap to itsproper |
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clearance. |
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Thenormalbreakerpointopening(pointgap) | is |
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0.35 mm at full separation.Sincethesparktiming |
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of 23" is regulated by the point opening, use a tim- |
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ing light to obtain an accurate sparkadvance. (Refer |
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to | Fig. 41 |
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To adjust breaker point opening, remove starting pulley, blower housing and flywheel from the engine | and |
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proceed as follows: (See Fig. 41.) |
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the | Remove |
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Turn the crankshaft over until the breaker arm comes in contact with thehigh point of the breaker cam. (Maximum point opening: 0.35 mm)
Loosen the contact support plate lock screw just enoughso that breaker can be moved. Insert a 0.35 mm feeler gauge between the points.
Caution: Adjust the breaker point gap without opening it more than 2 mm, otherwise rated
Apply a screw driver t o adjust tab and move the contact support plate just enoughso that a slight drag is felt while sliding the feeler gauge from the gap between the points.
Tighten the lockscrew- and recheck the breaker pointgap.
Pull a stripof 8 10 mmwide whitepaperthroughthe closed pointsto removeoilandduston the point surfaces.
Caution: When inserting a sheet of paper, never open the breaker point gap more than 2 mm.
Mount the flywheel, blower housing and starting pulley on the engine after adjustment.
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