Originally posted by LambdaMatters
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Starter gear trashed, trans seized.
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2H7 (79) owned since '89
3H3 owned since '06
"If it ain't broke, modify it"
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Originally posted by LambdaMatters View Post
I unfortunately do not… is there a pdf somewhere? I really don’t want to go in blind but i will. I may even record everything so i can remember.
Ringler.us | Manuals & Resources | YamahaBob's Bikes:
79SF, Military theme bike
Bob's websites:
https://projectxs11.wordpress.com
https://rucksackgrunt.com
Bob's Books:
"Project XS11"
"Rucksack Grunt"
"Jean's Heroic Journey"
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For Sale Here.
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Originally posted by Ranger_xs1100 View Post78 E
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It seems like there might be more to it than the starter gear.
First question is what caused those gear teeth to be ripped off? Seems like something could have jammed downstream.
Second question is why the rear wheel doesn't turn if the transmission is in neutral. The starter clutch should not be engaged, so unless the broken starter gear teeth got into the transmission, maybe something else is the root cause?-Mike
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'79 XS1100SF 20k miles
'80 XS1100SG 44k miles
'81 XS1100H Venturer 35k miles
'79 XS750SF 17k miles
'85 Honda V65 Magna ~7k miles
'84 Honda V65 Magna 48k miles (parts bike)
'86 Yamaha VMAX 9k miles
Previous: '68 Motoguzzi 600cc + '79 XS750SF 22k miles +'84 Honda V65
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Originally posted by Radioguylogs View PostIt seems like there might be more to it than the starter gear.
First question is what caused those gear teeth to be ripped off? Seems like something could have jammed downstream.
Second question is why the rear wheel doesn't turn if the transmission is in neutral. The starter clutch should not be engaged, so unless the broken starter gear teeth got into the transmission, maybe something else is the root cause?
well i went to move it literal seconds before and it rolled without issue, went to start it, heard a clunk and starter free spun. Went to move it back into the garage and had to drag it.. so i am assuming that the section of gear is definitely stuck somewhere.
78 E
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You have a good feel for what happened, but doesn't it seem strange this happened out of the blue?
Is it possible one or more pistons were hydro-locked from gas leaking out of the carbs? A check of the oil level might be relevant.
Otherwise, it would probably be the only time any of us has ever heard of this failure happening spontaneously.
-Mike
_________
'79 XS1100SF 20k miles
'80 XS1100SG 44k miles
'81 XS1100H Venturer 35k miles
'79 XS750SF 17k miles
'85 Honda V65 Magna ~7k miles
'84 Honda V65 Magna 48k miles (parts bike)
'86 Yamaha VMAX 9k miles
Previous: '68 Motoguzzi 600cc + '79 XS750SF 22k miles +'84 Honda V65
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No, I know of two bikes that locked up with trans gear failure! I have both engines in my garage at the moment. And No, I was not riding them when they let go, a PO did that TWICE on the same bike! I've NOT seen a starter gear go, but if a trans gear lost a tooth, and locked up the trans, it could break the starter gear.Ray Matteis
KE6NHG
XS1100 E '78 (winter project)
XS1100 SF Bob Jones worked on it!
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Originally posted by Radioguylogs View PostYou have a good feel for what happened, but doesn't it seem strange this happened out of the blue?
Is it possible one or more pistons were hydro-locked from gas leaking out of the carbs? A check of the oil level might be relevant.
Otherwise, it would probably be the only time any of us has ever heard of this failure happening spontaneously.
EDIT: the broken starter gear still spins freely.78 E
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