Small motorcycle fuel injection parts

jcorsaro · Post by **jcorsaro** » Sat Oct 29, 2005 7:30 pm

Yesterday at my shop I had an Aprilia 50cc fuel-injected scooter come in for repairs, it had a leaky o-ring at the fuel injector that would cause it to flood out when it sits for a few hours. I figured I'll take some photos of the components, they may be good for some one injecting a small motor. The system also has a electronic oil metering pump, an air injector, and a 18mm throttle body with a TPS witch I did not photograph.

The parts can bo ordered from a Aprilia motorcycle dealer, or maybe they will show up at a motorcycle salvage when they are wrecked.

Here is more info on the Orbital DiTech fuel injection system, including specifications on the pump.
http://www.maxmoto.co.uk/orbital.pdf

the bubbler · Post by **the bubbler** » Fri Nov 11, 2005 12:53 pm

Fabulous link, really useful info.

Do you have any experience of working on larger EFI scooters, specifically with port injection and around the 250cc mark.

Interested in converting my BMW Isetta 300cc bubble car to efi and mapped ignition- the orbital/synaject pump looks ideal, and it looks like they also do a decent injector.

Andy

the bubbler · Post by **the bubbler** » Fri Nov 11, 2005 1:55 pm

Fabulous link, really useful info.

Do you have any experience of working on larger EFI scooters, specifically with port injection and around the 250cc mark.

Interested in converting my BMW Isetta 300cc bubble car to efi and mapped ignition- the orbital/synaject pump looks ideal, and it looks like they also do a decent injector.

Andy

BentRods · Post by **BentRods** » Fri Nov 18, 2005 7:44 am

I got a hold of my Flat Slide 28mm TB the other day

the fun is about to start

Bentrods

BentRods · Post by **BentRods** » Fri Nov 18, 2005 7:50 am

I got a hold of my Flat Slide 28mm TB the other day

the fun is about to start

Bentrods

the bubbler · Post by **the bubbler** » Fri Nov 18, 2005 11:39 am

What are you fuel injecting?

BentRods · Post by **BentRods** » Fri Nov 18, 2005 2:35 pm

at the moment a 110cc Motor Bike thats used for Racing here in Indonesia, after that I hope to do a UAV Helicopter, this is kinda neat as its already wireless with a ground tracking station.... but for now the bike is 1st.

frez · Post by **frez** » Sat Nov 19, 2005 8:02 am

Hi guys! That's a really really interesting injector system from Aprilia.

Anyone has info/specs about this injector?

sidy · Post by **sidy** » Mon Nov 21, 2005 2:15 pm

I'm looking at both a z900-A4 and a CB750 (836cc)

Sid

On 11/19/05, the bubbler <melodic.wave@btinternet.com> wrote:
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> What are you fuel injecting?
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> This post is at:
> http://www.msefi.com/viewtopic.php?p=85398#85398
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Posted by email.

the bubbler · Post by **the bubbler** » Tue Nov 22, 2005 9:51 am

What are you guys planning to use for fuel control- Alpha N?

Reading some posts on the forum, it seems a single cylinder engine doesn't produce a useable pressure for MAP, so it either Alpha N or possibly MAF?

Seems like there are plenty of success stories with larger multi cylinder engines, but not much for small singles. Guess it's a niche interest.

Andy