Engine Lacks Power - Honda CBR954RR 2002 Service Manual

TROUBLESHOOTING

ENGINE LACKS POWER

Raise wheel off the ground and spin by
1.
hand
I
Wheel spins freely
2. Check tire pressure
I
Pressure normal
Accelerate rapidly from l o w t o second
3.
I
Engine speed reduced when clutch is
released
Accelerate lightly
4.
+
Engine speed increase
Check ignition timing
5.
Correct
!
Test cylinder compression
6.
Normal
t
Inspect fuel flow
7 .
I
Normal
8. Inspect the fuel injector
I
Normal
Remove spark plugs
9.
I
Not fouled or discolored
10. Check oil level and condition
I
Correct
Remove cylinder head cover and inspect
11.
lubrication
I
Valve train lubricated properly
21
-2
-
Wheels d o not spin
freely
Pressure l o w
-
Engine speed does
not change accord-
ingly when clutch is
released
Engine speed does
not increase
Incorrect
Incorrect
Abnormal
Abnormal
Fouled o r discolored
Incorrect
Valve train not lubri-
cated properly
Possible cause
Brake dragging
Worn or damaged wheel bearing
Faulty tire valve
Punctured tire
Clutch slipping
Worn clutch discs/plates
Warped clutch discs/plates
Weak clutch spring
Additive in engine oil
Air cleaner dirty
Restricted fuel f l o w
Clogged muffler
Pinched fuel tank breather
Faulty ECM
Faulty ignition pulse generator
Valve stuck open
Worn cylinder and piston rings
Leaking head gasket
Improper valve timing
Faulty pressure regulator (Section 5)
See section 5
Faulty spark plug
Oil level too high
Oil level too low
Contaminated oil
Clogged oil passage
Clogged oil control orifice