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Oil in the fuel tank (Help appreciated)

 
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Rowe2020
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Joined: 09 Sep 2019
Posts: 2

Buddy 50 2018

PostPosted: Mon Sep 09, 2019 3:04 pm    Post subject: Oil in the fuel tank (Help appreciated) Reply with quote

Hi, all -

My girlfriend and I are Genuine devotees, having purchased our first scooter—a Buddy 50 2-stroke—two years ago, and loving every aspect of the experience.

We are due to bring the bike in for servicing, which is the silver lining to the fact that Genius here absentmindedly put oil in the fuel tank yesterday. Not realizing my error, I drove it five minutes to run an errand (noticing some sluggishness with the throttle along the way) only for it not to start again. Perhaps needless to say, I pushed it all the way home.

The rub is, we have to drive the scoot to our dealer for servicing, which means I need to drain and flush the fuel tank and carburetor. I can't find anything definitive online that explains how I go about that—at least in terms of anything that remotely resembles our make or model (2018)—and I'm reluctant to start unscrewing and unplugging things without some assurances. The owner's manual wasn't terribly helpful either.

Any tips here greatly appreciated. Happy to supply more info, if needed.

Many thanks!
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GregsBuddy
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Joined: 11 Jan 2015
Posts: 470
Location: North SF Bay
Buddy 170i Vespa GTS 250ie Piaggio BV350

PostPosted: Mon Sep 09, 2019 3:19 pm    Post subject: Reply with quote

Try siphoning the fuel out and refilling with clean fuel, ten ride a while and see of it runs well again.
The worst that is likely to happen is a fouled plug. Let the tech know about this faux pas and forget about it.

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'15 170i Small sport scoot'
'06 Vespa 250ie GTS Medium smooth cruiser
'16 Piaggio BV350 Medium sport scoot'
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buzzvert
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Joined: 28 Jul 2019
Posts: 87
Location: Longmont, CO
Buddy 125 (2), lots of other bikes no longer in the garage

PostPosted: Mon Sep 09, 2019 3:50 pm    Post subject: Reply with quote

For a complete fuel drain, I always pull the seat assembly (four bolts- two by the latch and two in the storage area), and find the line from the fuel tank right before it hits the filter. Having a waste reservoir handy, unclamp the line and disconnect it from the fuel filter. The contents of the tank should drain via gravity from there. When it stops, rock the bike from side to side to get any remaining contents out of the tank to drain down the line. Reconnect line, re-install seat basket and you should be OK to go.
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Rowe2020
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Joined: 09 Sep 2019
Posts: 2

Buddy 50 2018

PostPosted: Mon Sep 09, 2019 6:17 pm    Post subject: Reply with quote

Thank you, GregsBuddy and Buzzvert! Very helpful. I siphoned out and refilled the fuel tank (with gas only, this time), and went so far as to detach the fuel filter in order to clean it out.

Had some trouble, subsequently, starting up the engine (it turns over just fine, and even starts from time to time but quickly cuts out), and in the process killed my battery. It's charging now. Hope to have all up and running in a bit.

Again, thanks!
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GregsBuddy
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Joined: 11 Jan 2015
Posts: 470
Location: North SF Bay
Buddy 170i Vespa GTS 250ie Piaggio BV350

PostPosted: Mon Sep 09, 2019 6:22 pm    Post subject: Reply with quote

Change the spark plug. Or, at least remove it and clean it with gas or carb cleaner. It's likely oily and with the additional insulation oil provides, not creating enough spark to ignite the fuel.
Be careful to not overheat the starter if it doesn't start quickly.

_________________
'15 170i Small sport scoot'
'06 Vespa 250ie GTS Medium smooth cruiser
'16 Piaggio BV350 Medium sport scoot'
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buzzvert
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Joined: 28 Jul 2019
Posts: 87
Location: Longmont, CO
Buddy 125 (2), lots of other bikes no longer in the garage

PostPosted: Mon Sep 09, 2019 9:12 pm    Post subject: Reply with quote

Thinking about it, there's likely gas/oil in the carb. If you can run it through and let it idle (probably badly) for a while you'll be OK. Worst case scenario is getting the carb out, tipping it over and getting the old gas out of the bowl.
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GregsBuddy
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Joined: 11 Jan 2015
Posts: 470
Location: North SF Bay
Buddy 170i Vespa GTS 250ie Piaggio BV350

PostPosted: Tue Sep 10, 2019 11:26 pm    Post subject: Reply with quote

It may not idle. No issues spinning it up and getting the fuel out.
You WILL get a coat of carbon on the piston and maybe the head if you don't get the stuff out.

_________________
'15 170i Small sport scoot'
'06 Vespa 250ie GTS Medium smooth cruiser
'16 Piaggio BV350 Medium sport scoot'
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Stanza
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Joined: 29 Jan 2018
Posts: 487
Location: Chicago
Puch Maxi, Honda C70

PostPosted: Wed Sep 11, 2019 2:07 pm    Post subject: Reply with quote

Not to mention the extra coating of oil/carbon in the catalytic converter. Expect heavy smoke for a little while.
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