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by stampmoney
Tue Aug 14, 2012 3:21 pm
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: Very loud screech then siezure
Replies: 5
Views: 2163

Very loud screech then siezure

Hi G 10/10. The 3 set screws holding the starter clutch to the alternator stator were snapped off (1) worn down to no screw slot left and in contact with the casing and and the last one was loose, just starting to contact the engine case. Re-fitted starter clutch and it runs with no screeeech. Great...
by stampmoney
Mon Aug 13, 2012 12:16 pm
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: Very loud screech then siezure
Replies: 5
Views: 2163

Very loud screech then siezure

Hi Thanks for your reply. I have removed the oil thrower and I cleaned it out before running. The screech comes more from the cluch side than the starter motor side. It also stalls the engine as a siezure of pistons would, but it "cools" off after a while to free up. That suggests a plain bearing, b...
by stampmoney
Mon Aug 13, 2012 11:19 am
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: Very loud screech then siezure
Replies: 5
Views: 2163

Very loud screech then siezure

Hi I have just started a CB77 305cc engine after a very long time standing, perhaps 15 years. (New oil etc) It ran for about 5 mins then shreeeeeked like mad and stopped. Re started engine and after 10- secs same shreek and siezed. I removed the alt plate and by spanner turned engine over, very stif...