AF05E Big Bore List - Aero and 88-93 elite Engines

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AF05E Big Bore List - Aero and 88-93 elite Engines

Post by mr pibbs »

A lot of folks are looking for bores for the AF05 engine. These bores are appropriate for Aero and early elites (88-93). More can be found by searching European vendors for the Honda Vision.

Here is a list with vendors for reference. (the stock bore is 41mm)

CMR
47mm 63-65cc - $89.99 VTcycles

Polini
47mm 65cc - $160 - $200 daywotor any polini dealer (part #119.0034)

Malossi
47mm (70cc?) - $159.99 Malossiusa/Rosel Import

Ruima
43mm 58cc - unknown price, Ruima dealer

RIK
43mm 58cc - Auction price ~$75 sold through vendor and member tazland001

Airsal
46mm 62cc - price unknown Moped Hospital


Please let me know if there are more choices or if any information needs to be updated.
Last edited by mr pibbs on Tue Oct 20, 2009 9:49 pm, edited 4 times in total.
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Re: AF05E Big Bore List - Aero and 88-93 elite Engines

Post by Wheelman-111 »

Greetings:

Good 411. Stock bore = 41mm. 40mm bore is '83-'84 NB50M Aero only.
The Malossi "70cc" is not. Malossi or Polini, 47m calculates to 65cc with stock stroke. Can't fit a bore bigger than 47mm + oversize (0.5mm) because the stud spacing would leave insufficient wall thickness. 65-66cc is the biggest you can get.
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Re: AF05E Big Bore List - Aero and 88-93 elite Engines

Post by maddog »

without a gear ratio which they don't make= give it up :wink:
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Re: AF05E Big Bore List - Aero and 88-93 elite Engines

Post by Kenny_McCormic »

maddog wrote:without a gear ratio which they don't make= give it up :wink:
You don't come around here often, do you? gears have been found, and dio gears have been made to work before. Wheelman-111 has gotten 55mph out of an AF05.
I am not a mechanic, nor do I play one on TV. Actually my advice is probably worth slightly less than what you pay to view it.
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Re: AF05E Big Bore List - Aero and 88-93 elite Engines

Post by Wheelman-111 »

Greetings:

Correction: Best GPS on Flash II was 58.7 on a so-so run. It'd do 60 with the wind at my back, I'm convinced. It also survived sustained periods of WOT. The AF05 gears are Primaries, Malossi Part Number
67-6458. They produce a 7.83:1 ratio. 9:1 would have been better all around.
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"ISO": '03 Vespa ET4 Malossi187 74MPH
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Re: AF05E Big Bore List - Aero and 88-93 elite Engines

Post by mr pibbs »

Found another! who knew Airsal made a bore for the vision...

Looking at the long list, it is almost silly when folks say that there are no upgrade options.

Link to Airsal kit in first post.
Last edited by mr pibbs on Tue Oct 20, 2009 9:46 pm, edited 1 time in total.
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Re: AF05E Big Bore List - Aero and 88-93 elite Engines

Post by z50r-ghost »

nice post, mr. pibbs-

this list should be sticky'd for all the Aero & early Elite guys :2thumbs:

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Re: AF05E Big Bore List - Aero and 88-93 elite Engines

Post by Lunytune »

So where does the SE50 fit in all this? Is it compatible with Aero/88-93 Elite cylinder, variator and gears? Or is it an orphan all alone? Don't have one but occasionally read something on it.
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Re: AF05E Big Bore List - Aero and 88-93 elite Engines

Post by mookie »

good question.
are the Aero and Elite engines the"same"?
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SE50s Never Walk Alone

Post by Wheelman-111 »

Greetings:

Based on my own (JDM) SE50 and many posts here, an '87 SE50 owner can fit anything that fits late Aeros and early Elites. There were some intake manifold changes in '88 but the block was unchanged through '93.

I have Stickied this thread. All contributors should be thanked by future SE/05 owners. Please edit your posts to include links to these alleged kits.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
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Re: AF05E Big Bore List - Aero and 88-93 elite Engines

Post by Bugaboo »

Found a Polini kit 70cc for a Vision $136.93 https://scooter-center.com/scoweb/pages ... egory2=CAT
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Re: AF05E Big Bore List - Aero and 88-93 elite Engines

Post by mr pibbs »

jk171282jk wrote:Found a Polini kit 70cc for a Vision $136.93 https://scooter-center.com/scoweb/pages ... egory2=CAT
That's a good eye, but this is actually the same 47mm polini kit mentioned above mislabeled as 70cc. The price is pretty good - you might get killed on shipping and import taxes. I have seen prices as low as $155 to your door stateside.
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Flash I's Polini Contesta

Post by Wheelman-111 »

Greetings:

This is a very good quality kit with all the parts except a cylinder head. It even comes with a main jet that works with stock pipe and airbox, suitable for drilling bigger if you change those out. It is indeed a 65cc kit by my cackle-ashuns. You can match the case ports or leave it alone and bolt on. It'll run almost 50 MPH but you have to do something about the stock gearing. Mine came from DayWot, but I've purchased a few items from Scooter-Center.com. They are fast shippers and usually get it right. Look to pay $30-$40 for the TransAt shipping.
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Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
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Re: AF05E Big Bore List - Aero and 88-93 elite Engines

Post by Bugaboo »

yeah $28 dollars and change for shipping. Just looked at it momentarily and didn't even notice the head was gone. Think the original head would fit?
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AF05E Polini Kit

Post by Wheelman-111 »

Greetings:

Sorry that was confusing. Absolutely the Contesta kit is designed to re-use your stock head. In my case a channel was cut into it for use of a Corsa-type viton O-Ring. This makes head removal possible without sourcing spare head gaskets, and raises compression ratio for higher output. Premium fuel recommended.
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Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
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