BushCADDY LSA Pilot Operating Handbook
Rev.03 5 March, 2008
Page 49 of 52
TROUBLE SHOOTING
Engine Won't Start
Possible Cause Remedy
1) Ignition OFF Switch ON
2) Spark plug gap too large Adjust gap to 0.6-0.7mm or renew plugs
3) Closed fuel tap or clogged filter Open tap, renew filter, check fuel system for leaks
4) No fuel in tank Refuel
5) Wrongly connected high tension leads Connect as shown on leads
6) Starting Speed too low, faulty or discharged
battery
Recharge or replace battery
7) Coil to Magnet gap too wide Adjust to 0.4mm (0.016")
8) High tension leads loose or damaged Check or renew connections
9) Dampness in distributors Thoroughly dry internally
10) Spark plugs damp due to condensation Thoroughly dry both inside and outside of plugs
11) Plug face wet by fuel due to excessive actuation
of choke or overflow of carb
Dry spark plugs, trace possible faults in fuel system
or over flow of carb.
12) Float valve dirty or jammed Clean or renew float valve
13) Jets in carb. clogged Clean jets
14) Water in carb. Drain & clean carb.,fuel line & filter. Water drain
fuel tank
15) Insufficient compression Trace pressure loss & repair if necessary
16) Engine damage Inspect oil strainer filter & oil filter for metallic
particles. If present, an engine overhaul may be
necessary.
Possible Cause Remedy
1) Choke activated Close choke
2) Float valve dirty, jammed or worn Clean or renew float valve
3) Intake manifold leak Tighten all connections, renew faulty items
10.3 Engine Runs Erratically or Misfires Occasionally
Possible Cause Remedy
1) Spark plug failure Check plugs, clean inside & outside, adjust electrode
gap. If necessary, renew plugs
2) Faulty HT leads Dry damp leads, renew damaged leads
3) Faulty ignition unit Renew ignition unit
4) Clogged fuel filter Renew fuel filter
Page No: 100 Issue No: 2 Date: 031100 Issued By: PJA
10.4 Engine Runs Too Hot - Oil Temperature Above 110oC (230
o
F)
Possible Cause Remedy
1) Too much oil in crankcase Check oil level & adjust if necessary
2) Low oil level Check oil level & add oil if necessary
3) Poor quality oil Oil change, use specified oil
4) Clogged oil filter Change filter
5) Excessive piston blow by Common reason: worn or sticking piston rings,
complete engine overhaul necessary
6) Faulty bearings If metallic particles are present in oil, complete
engine overhaul necessary
7) Faulty oil temperature gauge Exchange gauge
10.5 Unsatisfactory Power Output
Possible Cause Remedy
1) Ignition failure Check ignition circuits; check wiring and pick-ups;
replace ignition units.
2) Too much oil in crankcase Check oil level & adjust if necessary
3) Insufficient fuel supply Check fuel supply system
4) Fuel not according to specifications Re-fuel with specified fuel
5) Incorrect throttle adjustment Re-adjust throttle fitting
6) Leak in air intake Check and tighten all connections, check carby
sockets.
