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| Description | Part number | Qty |
|---|
| Description | Part number | Qty |
|---|
1. GENERAL INFORMATION MXU 300/ 250
POOR PERFORMANCE (AT HIGH SPEED)
Inspection/Adjustment Symptom Probable Cause
Check ignition timing
Faulty ignition unit
Correct timing Incorrect timing
Faulty pulser coil
Check valve clearance
Improperly adjusted valve
Correctly adjusted Incorrectly adjusted clearance
Worn valve seat
Check fuel pump for
fuel supply
Empty fuel tank
Clogged fuel tube or filter
Fuel flows freely Fuel flow restricted
Clogged Fuel tank cap breather
Check carburetor jets hole
for clogging
Not clogged Clogged Clean and unclog
Check valve timing
Correct Incorrect Cam timing gear aligning marks
not aligned
Check valve spring
tension
Not weakened Weak spring Faulty spring
1-29
Fast delivery and good communication ! The parts fit perfectly ! Thank you very much !
Great service from over seas
All parts came in together
👍🏽
fast delivery good service part fits exactly
Great! 
4.7 / 5