3-275
3
KX250A
9. Remove the front cylinder head assembly and
account for two alignment pins (A), cylinder
head gasket (B), oil pipe (C), and camshaft
chain guides (D). Repeat steps 8 and 9 for the
rear cylinder head.
KX255
10. Remove the intermediate shaft chain tensioner
(A); then remove the circlip (B) and washer.
11. Remove the intermediate shaft chain guides (C);
then remove the two Allen-head cap screws (D).
Account for the intermediate cam drive position
plate.
KX251
KX452
12. Install a 6 mm cap screw (A) in the tapped hole
of the front camshaft drive gear cover (B) and
remove the cover. Account for one O-ring.
KX252
13. Hold the intermediate shaft (A) with an Allen
wrench.
KX253
14. Remove the intermediate shaft sprocket nut (A);
then remove the sprocket (B), drive chain (C),
and the rear camshaft drive chain (D).
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Summary of Contents for 400 TBX
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