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MegaSquirt – Electronic Fuel Injection Kit

By Paul Crowe

MegaSquirt DIY Electronic Fuel InjectionA comment on our post about flexible fuel motorcycles mentioned the MegaSquirt Electronic Fuel Injection kit which I had never heard of, so I thought I should check it out.

In my post, I mentioned how E85 ethanol is getting a lot of coverage these days and I was wondering if any motorcycles were capable of running this without damage or major modifications. Our commenter notes that he has been running a Suzuki GS500 on E85 after only rejetting. Of course he can’t just fillup with gasoline now since the jets would be way too rich so he’s not really flex fuel capable and would need something like the MegaSquirt to make that happen.

Turns out the MegaSquirt is pretty neat. It’s a homebrew EFI setup that can be adapted to engines from 1 to 16 cylinders. You build it yourself and adapt it to your own application. There are parts and kits available, complete schematics and wiring diagrams and what looks like a pretty active and comprehensive forum for those building the kits. There is a computer program for setting it up to your parameters and the whole setup looks very sophisticated and well thought out. This is cool.

All of the parts added together total about $170 and if you are at all interested in really modifying engines and learning how everything works, especially if your particular application is not the usual run of the mill setup, the MegaSquirt looks to be just the ticket. Their website looks to be very detail rich, too. I like this a lot.

MegaSquirt EFI kit

Posted on February 28, 2006 Filed Under: Engines, Workshop & Tools


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Comments

  1. Matt says

    March 1, 2006 at 9:16 am

    That does look nice. I wonder how well it would work on a non-FI engine for a conversion. I’d love to get another small british convertable, but I detest the Zenith-Stromberg carbs…

    I’m always on the lookout for a ’86 FZR1000 (sentimental reasons), and I’d love to sport EFI on one of those.

  2. Mad Scientist Matt says

    May 26, 2006 at 11:41 am

    Matt, I’m busy putting a Megasquirt on a carbureted Dodge Dart right now. Details on the link to my homepage. It’s been taking a while, but I have had a lot of other things to work on too. There’s several people in the Megasquirt forums who have it running on bikes, too. Biggest hurdle is likely to be the high pressure fuel pump. You may want to wait a few months, though, as they’re releasing a scaled-down, waterproof version called Microsquirt which can run the ignition on a four-cylinder bike on its own.

    Also, they’ve adapted the Megasquirt-II to use GM flex-fuel sensors. At present, it’s the only aftermarket ECU with built-in support for flex-fuel.

  3. david buritica says

    March 3, 2009 at 6:24 pm

    im looking for an electronic fuel injection kit for a 150cc scooter do u guy have anything. or point me to the right direction

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