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post #1 of 29 (permalink) Old 05-12-2011, 07:20 AM Thread Starter
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Aprilia Advice needed

I'm one of those unfortunate souls that happens to own an Aprilia in Chicago. I'm having some difficulty with my engine stalling out in humid conditions. It is worse when the engine is cold, but does not go away entirely when warm. It will be fine when running, but when giving gas from low rpms it will stall. If i blip the throttle just right and fast enough, i might be able to avoid an embarrassing restart at stoplights. The most effective method of avoiding the stall is to hold the rpms up rather than letting it come to a complete idle.

I'd really like to be able to have my normal mechanic work on it, but he doesn't have the equipment to read the computer.

Do any of you have what it takes to read the computer or other suggestions on what to look for?

Thanks.
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post #2 of 29 (permalink) Old 05-12-2011, 07:30 AM
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Quote:
Originally Posted by mythdraug View Post
I'm one of those unfortunate souls that happens to own an Aprilia in Chicago. I'm having some difficulty with my engine stalling out in humid conditions. It is worse when the engine is cold, but does not go away entirely when warm. It will be fine when running, but when giving gas from low rpms it will stall. If i blip the throttle just right and fast enough, i might be able to avoid an embarrassing restart at stoplights. The most effective method of avoiding the stall is to hold the rpms up rather than letting it come to a complete idle.

I'd really like to be able to have my normal mechanic work on it, but he doesn't have the equipment to read the computer.

Do any of you have what it takes to read the computer or other suggestions on what to look for?

Thanks.

hes not that good of a mechanic if he needs a "scan tool" to find out whats wrong.


bad sensor
bad ignition
vacuum leak
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post #3 of 29 (permalink) Old 05-12-2011, 07:51 AM
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how old is the spark plug, whats the idle set at, maybe too low?

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post #4 of 29 (permalink) Old 05-12-2011, 08:01 AM
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Downers Grove Vespa is going to carry Aprilia and may have the nav tool, or will soon. Try calling Racer Cafe in St. Charles, the have some Aprilia guys there too I think.
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post #5 of 29 (permalink) Old 05-12-2011, 08:21 AM Thread Starter
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Quote:
Originally Posted by taledarkside View Post
hes not that good of a mechanic if he needs a "scan tool" to find out whats wrong.


bad sensor
bad ignition
vacuum leak
Pulling codes from the computer was my request to him. I'd rather pay labor for a known issue instead of labor to guess.
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post #6 of 29 (permalink) Old 05-12-2011, 08:24 AM Thread Starter
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how old is the spark plug, whats the idle set at, maybe too low?
Plug is new (or should be, it was just in for interval service 1500mi ago).

Idle feels right, no tach onboard to give a firm reading though. It will sit and idle all day if I would let it. No issues there, it's only when throttle is added that it stalls out.
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post #7 of 29 (permalink) Old 05-12-2011, 08:26 AM
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Go on The aprilia forum. I figured everything out with mine with the help from those guys.

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post #8 of 29 (permalink) Old 05-12-2011, 08:27 AM
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How old is the gas?

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post #9 of 29 (permalink) Old 05-12-2011, 08:29 AM Thread Starter
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Downers Grove Vespa is going to carry Aprilia and may have the nav tool, or will soon. Try calling Racer Cafe in St. Charles, the have some Aprilia guys there too I think.
Yeah, spoke briefly with Dennis at DGV yesterday. He said they are very close to being able to service (can't yet order parts), hoped to have all the pieces in line in the next week or so.

I'll keep Racer Cafe in mind if nothing else pans out.
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post #10 of 29 (permalink) Old 05-12-2011, 08:31 AM Thread Starter
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How old is the gas?
Age of gas is measured in days. At worst over the winter the gas would have only aged a month before being refilled.
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post #11 of 29 (permalink) Old 05-12-2011, 09:03 AM
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Like Nick said, go on the Aprilia forum. Some very knowledgeable cats on there.

http://www.apriliaforum.com/forums/index.php

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post #12 of 29 (permalink) Old 05-12-2011, 09:10 AM
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Do you know what kind of chip is in the ECU? Putting a race chip in the ECU that's not proper for the bike's current status (exhaust/FI, etc) will cause that problem.

Does it stutter and seem erratic when you're on the gas at times?

Tom

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post #13 of 29 (permalink) Old 05-12-2011, 09:20 AM
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I think Mark @ Power Motorsport in Palatine still has Access to Aprilia diagnostics and stuff...

#19
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post #14 of 29 (permalink) Old 05-12-2011, 09:29 AM Thread Starter
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Quote:
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Do you know what kind of chip is in the ECU? Putting a race chip in the ECU that's not proper for the bike's current status (exhaust/FI, etc) will cause that problem.

Does it stutter and seem erratic when you're on the gas at times?
Stock. No performance upgrades of any sort.

When being held stationary above idle, there are occasional sags in power or potential misses in firing. But when the engine is more open, there are no apparent issues.

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Like Nick said, go on the Aprilia forum. Some very knowledgeable cats on there.
I'll post up there. I'd already sent Micha a direct message (he used to respond to those) asking for ideas and suggestions, but haven't received a response.

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I think Mark @ Power Motorsport in Palatine still has Access to Aprilia diagnostics and stuff...
Ugh. PMS. They're still in business?
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post #15 of 29 (permalink) Old 05-12-2011, 09:38 AM
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I don't know anything about those scooters, but like others have said, go to apriliaforum in the scooter section and post the same thing you did here.

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post #16 of 29 (permalink) Old 05-12-2011, 09:41 AM
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anybody mention the aprilia forum yet? seriously, that is where you want to be.


/ex aprilia owner

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post #17 of 29 (permalink) Old 05-12-2011, 09:43 AM
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According to Aprilia web site, Motorworks Chicago is a dealer...

MOTOWORKS CHICAGO
1901 S Western Ave, Chicago IL 60608
(312) 738-4269
(312) 226-4029
http://www.motoworkschicago.com

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post #18 of 29 (permalink) Old 05-12-2011, 09:46 AM
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Ah poop...I didn't even notice that it was a scooter we were talking about. To the Ape board!

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Quote:
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In a state where corruption abounds, laws must be very numerous.
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post #19 of 29 (permalink) Old 05-12-2011, 09:54 AM
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Ugh. PMS. They're still in business?
Yes but not really only a limited selection and mostly repairs... Well I didn't go there in years.

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post #20 of 29 (permalink) Old 05-12-2011, 09:58 AM Thread Starter
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I don't know anything about those scooters, but like others have said, go to apriliaforum in the scooter section and post the same thing you did here.
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Ah poop...I didn't even notice that it was a scooter we were talking about. To the Ape board!
Uh oh. My cover has been blown. Honestly, I posted here with the hope that someone in the area might have the diag tool. But, I have been lurking here for years and didn't just join today. Heck, I almost showed up at one odyssey's skills day last year on the Scarabeo (and yes I asked him first if showing up on a scoot would be acceptible).

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According to Aprilia web site, Motorworks Chicago is a dealer...
In name only. They had enough problems with Aprilia service and support that they don't carry and try to service as few a possible.
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post #21 of 29 (permalink) Old 05-12-2011, 10:09 AM
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Dude, most of us love scooters...don't let these fake hard asses fool you (seriously)


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Quote:
Originally Posted by Tacitus
In a state where corruption abounds, laws must be very numerous.
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post #22 of 29 (permalink) Old 05-12-2011, 10:49 AM
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Uh oh. My cover has been blown. Honestly, I posted here with the hope that someone in the area might have the diag tool. But, I have been lurking here for years and didn't just join today. Heck, I almost showed up at one odyssey's skills day last year on the Scarabeo (and yes I asked him first if showing up on a scoot would be acceptible).



In name only. They had enough problems with Aprilia service and support that they don't carry and try to service as few a possible.
PMS has a Gameboy ( diagnostic tool..)

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post #23 of 29 (permalink) Old 05-12-2011, 11:00 AM
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its lean, put a bigger pilot jet in it and be done, or trade it for an RSV
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post #24 of 29 (permalink) Old 05-12-2011, 11:30 AM
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In name only. They had enough problems with Aprilia service and support that they don't carry and try to service as few a possible.
Shoot, when will have a decent Aprilia dealer? . I want to own Aprilia again, but not having a local dealer is a pain.

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post #25 of 29 (permalink) Old 05-12-2011, 05:06 PM
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Gameboy or OBD scanner ?
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post #26 of 29 (permalink) Old 05-12-2011, 05:07 PM
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Pulling codes from the computer was my request to him. I'd rather pay labor for a known issue instead of labor to guess.

you don't get codes all the time. And if you do, you still have to do the same diagnostics like I mentioned before.
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post #27 of 29 (permalink) Old 05-13-2011, 10:49 AM Thread Starter
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http://www-odi.nhtsa.dot.gov/acms/do...8V522-3316.pdf

Funny thing is, I know that the clamps were installed pre-recall.

But, fortunately, that doesn't count as being recall work; and Piaggio Customer Care says my bike is still eligible to have it performed.


On the positive side for the rest of you, when asked where the nearest authorized service center was. I was immediately and without hesitation told Downers Gove. If they don't have access to the extranet yet, they should in the next couple days.
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post #28 of 29 (permalink) Old 05-13-2011, 10:55 AM
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Shoot, when will have a decent Aprilia dealer? . I want to own Aprilia again, but not having a local dealer is a pain.

Vespa of Downers Grove is our only hope as of now.

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post #29 of 29 (permalink) Old 05-13-2011, 11:02 AM
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