PIAGGIO NRG POWER PUREJET, Руководство по ремонту, Страница: 43 / 248

Rear wheel
POOR ROAD HOLDING
Possible Cause Operation
Faulty suspension Check that the rear shock absorber and/or the
front fork is/are in good working order. Replace or
overhaul the front fork and/or replace the rear
shock absorbers in case of malfunction
Tyres deflated or damaged Check the correct pressure of the tyres and the
condition of the tread. Inflate to the correct pres-
sure or replace.
Loosen the anchorage points of the front and/or
rear suspension unit.
Check the tightness between the frame, swinging
arm and engine and the fixing of the wheels to the
hub and/or the axle. Check the correct tightening
of the steering ring nut.
Heavy steering
STEERING HARDENING
Possible Cause Operation
Torque not conforming Check the tightening of the top and bottom ring
nuts.
If irregularities continue in turning the steering
even after making the above adjustments, check
the seats in which the ball bearings rotate: replace
if they are recessed.
Excessive steering play
EXCESSIVE STEERING CLEARANCE
Possible Cause Operation
EXCESSIVE STEERING CLEARANCE Check the tightening of the top and bottom ring
nuts.
If irregularities continue in turning the steering
even after making the above adjustments, check
the seats in which the ball bearings rotate: replace
if they are recessed.
Noisy suspension
NOISY SUSPENSION
Possible Cause Operation
Components of the front suspension damaged. Check the quiet operation in the compression or
release phases of the fork and if necessary over-
haul it. Check that there is no noise or seizing
during the wheel rotation; if there is, change the
wheel bearing.
Components of the rear suspension damaged. Check the absence of noise in the compression or
release of the suspension, if necessary check the
proper tightness to the swinging arm unit and the
NRG Power Purejet
Troubleshooting
TROUBL - 5