[help needed] 4 Stroke Paramotor advice

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fregster
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Joined: Tue Aug 16, 2022 1:51 pm

4 Stroke Paramotor advice

Post by fregster »

Hi all,

I am looking to convert a Bailey v5 paramotor engine from carb to EFI. This is actually at its lowest level based on the GY6 engine which is used in many mopeds, bikes, ATV's, quads etc. I'm not 100% sure if it's 195cc or 210cc but that's irrelevant really at this stage.

I already have a throttle body from a CBR 125r (30 mm Kaihin) as it has an integrated injector, TPS, MAP etc but I have a few questions that from the wiki I can't quite find the answers to and a question of advice....

The engine as do many single cylinders run off a stator with a CDI box, can the stator ignition spark feed be hooked up to the secondary Hall sensor pins? I believe the magnetic pickup just produces a voltage on this line but at this stage, I'm not 100% here. I will figure out some way to do a VR pickup with a missing tooth setup for a more accurate setup.

I do not expect to be able to add a cam position sensor so I'm going to have to look at wasted spark for the ignition system. Would an LSx style coil pack still work well in this setup, the engine would reach up to 8500 RPM in flight so I'm a little worried about over-stretching it.

Finally, do people have any experience/recommendations on a good fuel pump setup? I really need an inline pump (As the tanks are removable on most paramotors) but power draw and weight is a concern, I only need a pump that would say do 30 BHP so ideally, a self-regulating 12V would be great, most I can find are either way to big and would probably draw to much current / be to heavy or really expensive.

As this will be a pull-start setup and I've not seen much information on working pull-start / kick start settings any advice is also welcome.

Thanks all!

Kind regards

Paul
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AndreyB
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Re: 4 Stroke Paramotor advice

Post by AndreyB »

We have one thread reporting kick start success https://rusefi.com/forum/viewtopic.php?p=44340#p44340
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