Honda motorcycle parts
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1982 Honda CB900F Supersport · Cover Service Parts Buying guide
The CB900F spark-advancer cover, its rubber O-ring and its screws are separate parts. Inspect the cover and sealing groove before ordering a cosmetic replacement; the starter-motor cover uses a different gasket.
Chrome advancer coverReplacement for 30371-425-010; gasket supplied separately.View part
Advancer-cover gasketRubber O-ring for the spark-advancer cover, reference 30372-425-000.View part
Starter-cover gasketSeparate sold-each gasket referencing 31282-425-300.View part
Related parts: Advancer-cover screw set
A new chrome cover does not repair a damaged mating face or supply its separate O-ring. Remove old material carefully, inspect the cover and groove, and compare the correct seal. Keep the starter-cover gasket separate from the advancer-cover O-ring.
The advancer-cover screw set contains three 6 x 25mm screws. Compare the fitted fasteners and thread condition before installation. The broader CB900F engine-cover set contains thirty-eight bolts and two Allen keys; its forty-piece total is not forty bolts or a kit for every engine fastener.
Only if the cover is the problem. Inspect the sealing face and separate rubber O-ring, and trace the leak to its source. The chrome-cover package does not include a new gasket.
Match the original thread and under-head length at each location. The linked advancer set is three 6 x 25mm screws. A screw that bottoms before the cover is secured can damage the housing or leave the joint loose.
No. The starter-cover gasket references 31282-425-300; the spark-advancer cover uses rubber O-ring 30372-425-000. Identify the cover being opened before ordering either sealing piece.
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