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Old 10-11-2014, 12:09 PM   #1
crunchiespg OP
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Joined: Sep 2009
Location: AB Canada
Oddometer: 956
PW50 stiff throttle return, suggestions?

i just picked up a really nice 2010 pw50 for a great price. it runs great, but the throttle is a little sticky and slow to return.
any suggestions on best places to start to try and smooth it up. i want it nice and snappy so my little girl doesn't get on and find it pulling away with a wide throttle that won't close by itself, especially as she is just learning.

i read some google searches that said the oil pump can get dirty where the cable goes in.. ill try and figure that out.
any other places to check? i really need a service manual for this bike but for now i throw myself before the collective wisdom here.

cheers
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Old 10-11-2014, 02:23 PM   #2
concours
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Check the throttle tube for rust first, clean and grease it, the cable needs lube, (replaced if left in the rain at all) or just routing, incorrect slide/spring installation. Some DPO may have dicked things up.
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Old 10-11-2014, 03:58 PM   #3
crunchiespg OP
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Quote:
Originally Posted by concours View Post
Check the throttle tube for rust first, clean and grease it, the cable needs lube, (replaced if left in the rain at all) or just routing, incorrect slide/spring installation. Some DPO may have dicked things up.
Cheers. But luckily it was even easier. Got it up on the workbench. Started with the easy part of just moving the throttle grip out a little. Sure enough it must have pushed in a little and the end of the trip was rubbing against the bars.

Sorted!
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Old 10-12-2014, 04:39 PM   #4
ttpete
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Location: Dearborn, MI
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Quote:
Originally Posted by crunchiespg View Post
Cheers. But luckily it was even easier. Got it up on the workbench. Started with the easy part of just moving the throttle grip out a little. Sure enough it must have pushed in a little and the end of the trip was rubbing against the bars.

Sorted!
That's common when the bike is dropped. Find a washer that's the same diameter as the bar end and put it in the throttle tube so the rubber grip no longer can contact the bar end.
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Old 10-13-2014, 08:33 AM   #5
vintagespeed
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pull the carb and give it a good cleaning, they're pretty easy to work on. drain & clean out the oiler line and put some fresh yamalube in it.

edit: also, dont forget to use the throttle limiter for the first few rides, keeps it from getting up on the pipe. that little thing WILL run if it cleans out..!

PW50 is a great bike, will literally run forever if the carb is kept clean. my buddy gave me his wife's PW that she learned to ride on for my boys, they learned, i rebuilt the bike & gave it back to him for his daughter.



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vintagespeed screwed with this post 10-13-2014 at 08:35 AM Reason: blah
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