Yamaha 50

davidnewsome
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Kinston, NC, USA
davidnewsome
Put new carb on and gets gas in carb and plug is wet but want crank unless pour gas in carb
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davidnewsome
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Kinston, NC, USA
davidnewsome 12/12/2016 5:29pm
12/12/2016 5:29pm
Anyone know how to help me out new carb on it gets gas to bowl and plug is wet but want crank till u pour gas in carb
Paw Paw 271
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Paw Paw 271 12/12/2016 5:45pm
12/12/2016 5:45pm
You did not state the year of the bike, but as I recall some or maybe all of them had a vacuum operated fuel flow.

Paw Paw
Braaaphole
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Braaaphole 12/12/2016 6:42pm
12/12/2016 6:42pm
PW50 or TTR50?
davidnewsome
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davidnewsome 12/12/2016 7:04pm
12/12/2016 7:04pm
It's a pw 50 I think it's 91 I'm working on it for a friend the plug is real wet but u can spray gas and it will run don't know much about them just real good mechanical experienced in small engines like lawn mowers

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Chopsalot 12/12/2016 7:05pm
12/12/2016 7:05pm
Have you tried the choke?
davidnewsome
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davidnewsome 12/12/2016 7:05pm
12/12/2016 7:05pm
And can I bypass oil pump by just plugging the line
davidnewsome
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davidnewsome 12/12/2016 7:07pm
12/12/2016 7:07pm
No but I will it seem to be real right puttiputting it on and it don't feel like it's working properly
Its169
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Its169 12/13/2016 7:11am
12/13/2016 7:11am
Check compression. New top end kits are cheap.
mikec265
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mikec265 12/14/2016 8:32am
12/14/2016 8:32am
Did you buy the $16 new carb from eBay?
I tried one of those and it ran like crap.
I had the local shop go over the stock carb and it now runs perfect.
mikec265
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mikec265 12/14/2016 8:36am
12/14/2016 8:36am
I also tried blocking the oil injection. The bike runs a lot better with the injection system working.
The oil line won't fit on the cheap ebay carb.
project racer 12/14/2016 1:21pm
12/14/2016 1:21pm Edited Date/Time 12/14/2016 1:33pm
I've used more than one of the ebay cheapies on PW50's. They worked fine for me. Oil lines fit right. Have also had good luck with similar Suzuki JR 50 ebay carbs. Does it stay running after you get it started ? Compression check and stator side crank seal would be first things to look at.

PW's are known to seize the top end occasionally. If it has pinned the rings down, it will never run. Had one that would not start. LH crank seal was out of the case, right up against the back of the stator plate. These things are easier than most lawn mowers to get running.

Oh yeah. Carbon build up in the exhaust port and pipe itself is a common problem on these bikes. Pull the pipe , and check the port. Try to start it without the pipe. Won't hurt it.
project racer 12/14/2016 1:29pm
12/14/2016 1:29pm
Gave $120 for this one. Missing carb and air box. It cleaned up well, , ran good ,ebay china carb and all.





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