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Px200
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Px200
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The other day I stopped at the traffic lights on my 2001px200, sat in neutral and it jumped into gear and stalled. Restarted and when lights changed to green, no gears at all and the selector would turn much further than it should.

Got home, stripped selector box to find the roll pin had somehow fallen out. Refitted. Now have gears but cannot move selector without engine running and clutch in. Never used to be like that. Any ideas to what other damage could have occurred?? Hope it's not a cruciform.

Dan
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Molto Verboso
'64 Motovespa 150S (177) , '65 VBB, '66 Allstate SF, '66 180SS
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Molto Verboso
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'64 Motovespa 150S (177) , '65 VBB, '66 Allstate SF, '66 180SS
Joined: UTC
Posts: 1897
Location: S.Salem, NY
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Not quite sure what you are experiencing but if the gears are static, it is coincidental if there is a slot lined up for the cruciform to move into. Can you select gears while you rotate the rear wheel ?
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Px200
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Px200
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Thanks for your reply.

I have all gears now, but when engine is off I cannot move gear selector, so if I stop the engine in gear I cannot select neutral unless I start the engine. It never used to be like that until I lost all the gears.
Also the gear selector turns much further now, almost to where a potential gear 5 would be.

Dan
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Ossessionato
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Location: northern New York
 
Ossessionato
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Standing dead still on my scooter with the engine off, I can't move the selector through the full range of motion. Much smoother with the engine running or moving. When I approach a stop, I usually downshift and put it in first with the clutch in.

Have you checked your cables? Try adjusting them and have a look at the ends in the headset. I had one that had started to fray badly which made it stretch, but also snarl causing all kinds of shifting problems and surprises.
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Molto Verboso
1958 Allstate 177VMC, 1962 Allstate, Yamaha Vino 70cc
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Posts: 1994
Location: Philadelphia
 
Molto Verboso
1958 Allstate 177VMC, 1962 Allstate, Yamaha Vino 70cc
Joined: UTC
Posts: 1994
Location: Philadelphia
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I'm honestly amazed you can start it with it in gear. That alone is wild!
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Px200
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Px200
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I never usually stop the engine in gear, but It ran out of fuel ( hadn't turned tap on) and I couldn't get it out of gear. Tried it a few times and always the same scenario. Gear cables are ok, and I did adjust clutch cable.


Don't understand why everything feels different now, just wondering if it could have damaged something else?
@moto64 avatar
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Molto Verboso
'64 Motovespa 150S (177) , '65 VBB, '66 Allstate SF, '66 180SS
Joined: UTC
Posts: 1897
Location: S.Salem, NY
 
Molto Verboso
@moto64 avatar
'64 Motovespa 150S (177) , '65 VBB, '66 Allstate SF, '66 180SS
Joined: UTC
Posts: 1897
Location: S.Salem, NY
UTC quote
Not being able to shift gears with the bike stopped is normal. There are no synchros like a car tranny that only have to rotate a very small amount to engage. I always drop into neutral as I come to a stop. Holding the clutch in while waiting at a light is risky as it may pop into gear and it also causes a lot of wear on the clutch plunger. If you can't hit first when stopped either roll the bike a ways forward or backwards or let the clutch out briefly to get the gears spinning and then pull it and engage first.
If you look at the whole gear selecting system ( sliding cruciform) you will understand how it has to slide into the slots in the gears to engage them.
Forcing the shifter when the slots don't line up with the cross will only stretch or loosen a cable or put a lot of strain on the selector. Maybe what caused the pin to come out ?
I, too, don't understand how you can start the motor in gear. With the clutch pulled, the kickstart gear is disconnected from the motor and if it is not you would just drive the bike forward with the kickstart at a speed way too slow to fire up the motor.
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