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Post by zumaguy on Jan 21, 2013 20:17:16 GMT -5
I've got a 2012 zuma 50f, had it since july, 3400 miles no problems...until this morning.
Went to start it and it turned over but didn't run. Took maybe 6 tries before it started and then stalled...and then I tried again and gave it some gas after it fired up and it's run perfectly fine ever since, firing up on the first push of the button everytime.
Any idea about what could have caused this?
thanks
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Post by Fox on Jan 21, 2013 20:22:43 GMT -5
Could have had a little water condense in the carb. Don't worry about it unless it happens a lot.
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Post by zumaguy on Jan 21, 2013 20:37:12 GMT -5
Thanks for the reply... it's got electronic fuel injection though.
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Post by kyle401 on Jan 21, 2013 20:39:18 GMT -5
Have u changed the oil yet?
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Post by Fox on Jan 21, 2013 20:46:02 GMT -5
May be time for a valve adjustment.
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Post by zumaguy on Jan 21, 2013 20:46:46 GMT -5
Have u changed the oil yet? Yeah, all maintenance up to date---except for the valve check because the Yamaha mechanic told me to save my money and not worry about it for awhile. I don't know what it could be, never had this prob, happened just that one time this morning and now it's firing every-time. |
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Post by Fox on Jan 21, 2013 20:49:39 GMT -5
If it works good, don't fix it!  |
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Post by zumaguy on Jan 21, 2013 21:01:37 GMT -5
If it works good, don't fix it! Yeah, maybe you're right...you're proably right about the valves needing to be checked also. I'm just kinda worried, I mean, fixing a Yamaha can get expensive, lol, I'm just trying to figure out if this issue could be symptoms of something more serious while I've still got a few more months left on the warranty. |
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Post by Fox on Jan 21, 2013 21:03:58 GMT -5
Might have had a little moisture in the gas tank that had to work it's way through. Very common for water to condense inside a fuel tank in winter. I've never tried it but lots of guys use a little Seafoam® additive to remove moisture and keep the fuel system clean. Might help you down the road. At 3000+ miles I think it's over due for a valve adjust but that's me...I'm used to Chinese scooters that need to be checked at 300 miles and then twice a year at least.
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Post by zumaguy on Jan 21, 2013 21:14:36 GMT -5
Might have had a little moisture in the gas tank that had to work it's way through. Very common for water to condense inside a fuel tank in winter. I've never tried it but lots of guys use a little Seafoam® additive to remove moisture and keep the fuel system clean. Might help you down the road. At 3000+ miles I think it's over due for a valve adjust but that's me...I'm used to Chinese scooters that need to be checked at 300 miles and then twice a year at least. Actually, according to the manual, I was supposed to have had them checked already...but it's this Yamaha mechanic whom keeps telling me that it's un-neccessary, lol. The last time that I brought it up, he was like "Man, if your dead-set on it then I'll do it but I'm telling you that your wasting your money", lol. Yeah, I'm gonna go ahead and get them checked to be on the safe-side. |
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Post by Fox on Jan 21, 2013 21:35:51 GMT -5
It's really no big deal. You can do it yourself.
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Post by zumaguy on Jan 22, 2013 14:26:05 GMT -5
It's really no big deal. You can do it yourself. Unfortunately, it's not that simple on the 4t 2012 Zumas. Checking the valves requires that the coolant be drained and the radiator removed...and then you gotta have the "shims" to adjust them (if they need adjusting)--not sure if I wanna fool with it myself. |
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Post by qwertydude on Jan 22, 2013 17:27:46 GMT -5
If it's a shim and bucket valve like the old Metropolitan was I wouldn't be worried about the valves, even after 15,000 miles on the Metropolitan they didn't need a valves adjustment. Likely just some bad gas or water in the lines, but one thing I'd do is replace the spark plug with an Iridium one. It definitely helps with cold starts.
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Post by lancecharming on Jan 23, 2013 13:15:17 GMT -5
I`ve got a scooter that sits all year long as a back-up scooter. I only run it once a month for a few minutes to keep the battery up. I use Seafoam in it and when I hit the starter button it fires up immediately- starts in like 2 seconds. No matter how long it has sat.
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Post by doomsday on Feb 11, 2013 19:50:24 GMT -5
I`ve got a scooter that sits all year long as a back-up scooter. I only run it once a month for a few minutes to keep the battery up. I use Seafoam in it and when I hit the starter button it fires up immediately- starts in like 2 seconds. No matter how long it has sat. You cant do that with my taotao cy50-t3. If I dont run it for a few weeks, it is very hard to get it to stay idling. I can twist the handle a few times and then hit the starter and it will fire right up but still wont idle very well. Once it gets warmed up there is no problems with it, runs great, no bogging down at all. If I start it at least once a week I never get that problem though. I do keep additive in my gas tank though, because we have ethanol in our gas. |
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