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 Post subject: Scoot keeps dying when trying to warm up
 Post Posted: Thu Sep 22, 2011 9:16 pm 
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DIT (Diva in Training)
DIT (Diva in Training)

Joined: Fri Sep 16, 2011 9:19 pm
Posts: 5
I have had my scooter less than a week and the manual states I should warm it up for about 5-10 minutes but when I start it up in the morning and go back inside it dies immediately ...is this because it is brand new? What do you all do to warm up your scooter?
Also they is like a clicking after I have ridden for awhile when the engine is off...maybe this all normal?


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 Post subject: Re: Scoot keeps dying when trying to warm up
 Post Posted: Sun Sep 25, 2011 10:13 am 
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Queen Diva
Queen Diva
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Joined: Sun Aug 10, 2008 1:08 am
Posts: 941
Location: North Eastern Missouri forced to work in Western Illinois
Scooter: Honda Elite 50/86 conversion,"BUZZ", Yamaha Zuma, "ZOOM!" 50/70cc conversion, Yamaha TTR 125L "Mud Puppy", Honda VTR 250cc."CAMO"
Have you tried staying with it for a minute and giving it some light throttle? You don't have to rev it high, just a little tweek of the throttle to keep it running? Both of my scooters and my dirt bike have a warm up period. I usually just set on them, give them an occasional throttle tweek and wait for them to accept the acceleration without sputtering and or stalling out before I head out. Cars today have fuel injection making them able to bypass warm up. Many Scooters don't. If you are working with a carburetor on your scooter they require warm up even in warm weather. I would say that your scoot is acting pretty normal for a cold start but I wouldn't leave it unattended for 10 minutes and go back in the house.

Makes it too easy for somebody with light fingers to come by and nick themselves a nice ride.

Also are you applying the choke when you first start it? If you have a manual choke you should be using it to first start your scooter cold. Could make a big difference in the way it starts. Just make sure you turn it off before you start out or you will be running rich.

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There are two types of people in this world, people who ride scooters and
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 Post subject: Re: Scoot keeps dying when trying to warm up
 Post Posted: Wed Oct 05, 2011 5:23 pm 
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Moderator Diva
Moderator Diva
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Joined: Tue May 13, 2008 4:31 pm
Posts: 1535
Location: Florida, NH
Scooter: Kymco, Vespa, Fuji Rabbit
New scooter means you have a warranty...take it right back. I suppose your dealer could fall back on the manual and point out what it says about the warm up period...but ask him if he really does that with them. And have him take a look at the way yours starts (or doesn't) and confirm yay or nay.

I don't have a clue if any of the manuals for mine call for a warm up, but of my 6 bikes, the only ones I warm up for a very short period are the vintage 2 stroke bikes that require a choke for a cold start. The modern bikes I just start up and go. I sometimes will start a bike while I'm putting on my gloves and or helmet. But how long does that take? Ten minutes is an awful long time. IMHO, a ridiculous amount of time to suggest. It may be that the idle or some other carb adjustment is slightly off.

What make/model scoot is it?


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 Post subject: Re: Scoot keeps dying when trying to warm up
 Post Posted: Thu Oct 13, 2011 9:09 pm 
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Diva
Diva

Joined: Thu Oct 13, 2011 10:17 am
Posts: 44
Location: S.W. Pennsylvania
Scooter: 2006 Yamaha Vino 125, 1981 Honda Passport 70, 1964 Honda Cub 50
(1) If your scooter has a vacuum-operated fuel shut-off (like my Yamaha Vino), then it could be that the fuel hasn't had time to flow all the way through the fuel line to the carburetor, causing the engine to shut down. This will be especially noticeable if the bike has been sitting for more than a few days. The only way to work around this problem is to access the vacuum line (hose) that runs from either the intake manifold or the carb (depending on the bike), up to the fuel shut-off. Pull the vacuum line off of the carb or intake manifold and suck on it (yes, really!) in order to create a vacuum that will open the fuel shut-off. Don't worry, there is no fuel in this line - it's only a vacuum hose. You will have to keep the fuel shut off open for at least 20 seconds or so to fill the float bowl on the carburetor. Of course, this is done before attempting to start the engine, and only if the bike has been sitting for more than a few days. Put the hose back in place before trying to start the bike. If the hose is left off, it won't start at all.

If your scooter does this all the time, even though you ride it at least a few times a week, then the problem is being caused by something else... read on.

If your scooter has a manually operated fuel shut off, then disregard the first paragraph here.

(2) If your bike has a manually-operated choke, perhaps you are leaving the choke on (closed) too long, causing the engine to "choke out". With a manually operated choke, it should only be used for the first 10-20 seconds after the bike starts, or even less than that if the engine runs without it after starting. Try flipping the choke off (or pushing it back in, or whatever, depending on your bike) right after the engine starts. If the engine keeps running after the choke is off (open), then you're good to go!

(3) Ten minutes is WAY too long for a warm up for any air-cooled engine. You need to get it rolling after no longer than 3 or 4 minutes to create a cooling airflow across the cylinder fins. Letting it run while sitting still for 10 minutes (yikes!) will overheat the engine, causing premature wear on the piston, rings, and cylinder walls, not to mention the fuel that's being wasted. If your scoot has a 2-stroke engine, then you're gonna foul the spark plug as well by letting it sit and idle away for 10 minutes. Depending on where you live, you might be annoying your neighbors, too!

The "clicking" sound you hear after shutting the engine off is simply the sound of the exhaust system cooling off. This is totally normal and is nothing to worry about, as all bikes do it. Next time you park next to a big ol' Harley, listen to it's "cooling clicks". It's about the only thing that scooters have in common with Harleys... hee-hee!


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 Post subject: Re: Scoot keeps dying when trying to warm up
 Post Posted: Sun Apr 29, 2012 3:47 pm 
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Diva
Diva
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Joined: Sat Apr 28, 2012 1:45 pm
Posts: 69
Location: Bloomington MN
Scooter: CF Moto Glory 150
Why do you want to join this forum?: Great info and great conversations about our scooter passion.
Mine was having difficulty turning over right away last summer and it was new as well. The dealer told me that scooters quite often come with a pretty minimal quality battery. I decided to spring for one at Batteries Plus that is often put into motorcylces of much bigger motor size. Problem solved. No hesitation anymore! Hope your difficulties are as easy to solve.


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 Post subject: Re: Scoot keeps dying when trying to warm up
 Post Posted: Mon May 21, 2012 4:59 pm 
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DIT (Diva in Training)
DIT (Diva in Training)

Joined: Mon May 21, 2012 4:51 pm
Posts: 4
Have you tried raising the idle on the carb? If not, try that first. I'd also agree that bringing it back to the dealer would be a good idea since it's new. Let them adjust it for you.


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