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Hooked
1968 Sprint 150
Joined: UTC
Posts: 236
Location: Vancouver, BC
 
Hooked
1968 Sprint 150
Joined: UTC
Posts: 236
Location: Vancouver, BC
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My speedometer just stopped working last week. If it's the cable that needs to be replaced is there other stuff around it I should replace?
@markosmarkos avatar
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Hooked
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Posts: 200
Location: no matter where you go, there you are
 
Hooked
@markosmarkos avatar
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Location: no matter where you go, there you are
UTC quote
Other possibility is the driven worm gear at the hub where the cable starts. The driven gear is plastic and can wear out or strip. Especially if the cable hasn't been lubed in awhile, it will start to bind. The cable will twist and break, or the plastic driven gear will strip.
OP
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Hooked
1968 Sprint 150
Joined: UTC
Posts: 236
Location: Vancouver, BC
 
Hooked
1968 Sprint 150
Joined: UTC
Posts: 236
Location: Vancouver, BC
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Thanks
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Addicted
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Location: Planet Earth
 
Addicted
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Posts: 960
Location: Planet Earth
UTC quote
splash_wave wrote:
Thanks
Yes, they are pennies. Hook yours out and see if its mangled. One thing you might want to check is that the speedo headset end hasnt popped off. I have a px125 2003 and the other week mine stopped and the white plastic clip that holds the outer cable and inner had popped off the actual speedo itself. I took the headset off last year to replace a headlight bulb so maybe I hadnt locked it completely in place to the headset speedo unit.

https://www.sip-scootershop.com/en/product/speedometer-drive-gear-12-teeth_94430000?cr=3a6304bb-cc81-4ed5-9f63-1ff45fe1abfa&gad=1&gclid=EAIaIQobChMIyOC8hLj3_gIVwrLVCh37aA4oEAQYASABEgKnY_D_BwE
Headset end is white, mine worked loose as the lugs not clipped into speedo unit, hence stopping
Headset end is white, mine worked loose as the lugs not clipped into speedo unit, hence stopping
OP
UTC

Hooked
1968 Sprint 150
Joined: UTC
Posts: 236
Location: Vancouver, BC
 
Hooked
1968 Sprint 150
Joined: UTC
Posts: 236
Location: Vancouver, BC
UTC quote
Where the drive gear is on the front wheel is there some nuts and bolts I have to take off to get to it?
@garncarz avatar
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Molto Verboso
1964 Allstate Cruisaire, 2022 Husqvarna Vitpilen 401, 1972 Suzuki T500J
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Location: York, PA (the intellectual center of the universe)
 
Molto Verboso
@garncarz avatar
1964 Allstate Cruisaire, 2022 Husqvarna Vitpilen 401, 1972 Suzuki T500J
Joined: UTC
Posts: 1026
Location: York, PA (the intellectual center of the universe)
UTC quote
Here you go.
Forum member supplied image with no explanatory text
Forum member supplied image with no explanatory text
OP
UTC

Hooked
1968 Sprint 150
Joined: UTC
Posts: 236
Location: Vancouver, BC
 
Hooked
1968 Sprint 150
Joined: UTC
Posts: 236
Location: Vancouver, BC
UTC quote
thanks
OP
UTC

Hooked
1968 Sprint 150
Joined: UTC
Posts: 236
Location: Vancouver, BC
 
Hooked
1968 Sprint 150
Joined: UTC
Posts: 236
Location: Vancouver, BC
UTC quote
What does the thing that looks like this ♂ do? The silver one with the nipple.
@garncarz avatar
UTC

Molto Verboso
1964 Allstate Cruisaire, 2022 Husqvarna Vitpilen 401, 1972 Suzuki T500J
Joined: UTC
Posts: 1026
Location: York, PA (the intellectual center of the universe)
 
Molto Verboso
@garncarz avatar
1964 Allstate Cruisaire, 2022 Husqvarna Vitpilen 401, 1972 Suzuki T500J
Joined: UTC
Posts: 1026
Location: York, PA (the intellectual center of the universe)
UTC quote
Grease fitting
OP
UTC

Hooked
1968 Sprint 150
Joined: UTC
Posts: 236
Location: Vancouver, BC
 
Hooked
1968 Sprint 150
Joined: UTC
Posts: 236
Location: Vancouver, BC
UTC quote
OK that means the speedo drive gear needs oil to not destroy itself?
@grumpnut avatar
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Hooked
'58 VBA
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Location: Chico CA
 
Hooked
@grumpnut avatar
'58 VBA
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Posts: 412
Location: Chico CA
UTC quote
Grease, not oil. So yes.
@scooterist avatar
UTC

Molto Verboso
71' Sprint Veloce , 05' Vespa PX150, 1978 P200E
Joined: UTC
Posts: 1558
Location: Tucson, AZ
 
Molto Verboso
@scooterist avatar
71' Sprint Veloce , 05' Vespa PX150, 1978 P200E
Joined: UTC
Posts: 1558
Location: Tucson, AZ
UTC quote
Put one of the center stand legs over a 2"by 4" wood piece. Remove the speedometer, detach the cable from the speedometer and with your hand or leg make the front tire roll. You should see right of way if the cable rotates.

If the cable rotates then it could be :
1) The cable wasn't properly making contact with the speedometer
2) The speedometer is not working.

As far is the bottom part. Yes, there is a gear or two by the hub, I thin k one of them is a worm gear. A common problem with the old scooters is the cable fraying internally on the inside. If that happens the you get erroneous speed readings ie: like it works just fine up to 30 mph then you keep accelerating but the speedometer seems to barely move after that then it picks up again.
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