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Symbol Technologies T350 User Manual

Page 19

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19

Does the engine

crank?

Faulty recoil starter.

Fluid in the crankcase.

Internal damage.

Consult with an authorized

servicing dealer.

Consult with an authorized

servicing dealer.

Consult with an authorized

servicing dealer.

NO

Good

compression?

Loose spark plug.

Excess wear on

cylinder, piston, rings.

Tighten and re-test.

NO

YES

Does the tank

contain fresh

fuel of the

proper grade?

Refill with clean fresh unleaded

gasoline with a pump octane of

87 or higher, mixed with

Premium 2-cycle mixing oil at a 50:1

gasoline/oil ratio.

Fuel incorrect, stale, or

contaminated; mixture

incorrect.

NO

YES

Is fuel visible

and moving in

the return line

when priming?

Check for clogged fuel

filter and/or vent.

Replace fuel filter or vent as required.

Restart.

NO

Is there spark at

the spark plug

wire terminal?

The ignition switch

is in “O” (OFF) position.

Shorted ignition ground.

Faulty ignition unit.

Move switch to “I” (ON)

position and re-start.

NO

NO

YES

YES

Check the

spark plug.

If the plug is wet, excess

fuel may be in the

cylinder.

The plug is fouled

or improperly gapped.

The plug is damaged

internally or of the

wrong size.

Crank the engine with the

plug removed, replace the

plug, and re-start.

Clean and re-gap the plug to

0.6 ~ 0.7 mm. Re-start.

Replace the plug with a

NGK BMR6A. Re-start.

YES

What To Check

Possible Cause

Remedy

Troubleshooting Guide

Engine Does Not Start

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