English, 22 r – KTM 250 EXC RACING User Manual
Page 23
ENGLISH
22
R
ECOMMENDED INSPECTION OF THE
250/450/525 SX
AND
EXC
ENGINE
USED FOR ENDURO COMPETITIONS BY YOUR
KTM
WORKSHOP
(
ADDITIONAL ORDER FOR THE
KTM
WORKSHOP
)
a 100 liter fuel consumption is equivalent to approx. 15 operating hours
Check the clutch disks for wear
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Check the length of the clutch springs
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Check the cylinder and piston for wear
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Check the groove on the piston pin retainer for wear (visual check)
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Check the camshaft for wear (visual check)
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Replace the camshaft bearings
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Check the length of the valve springs
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Check the spring cap for wear
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Check the eccentricity of the valve disk
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Check the valve guides for wear
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Check the radial clearance of the rocker arm rollers
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Check the elongation of the timing chain
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Check the chain tensioner tooting for damage (visual check)
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Check the eccentricity of the crankshaft journal
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Replace the conrod bearings
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Check piston pin bearing
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Replace the balancer shaft bearings
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Replace the crankshaft main bearings
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Check the entire transmission including the roller and bearings for wear
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Check the length of the bypass valve spring
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30 hours
200 liter
45 hours
300 liter
60 hours
400 liter
90 hours
600 liter
120 hours
800 liter
135 hours
900 liter
NOTE: IF THE INSPECTION ESTABLISHES THAT PERMISSIBLE TOLERANCES ARE EXCEEDED, THE RESPECTIVE COMPONENTS
MUST BE REPLACED.