Scooterotica

The kheper is fully programmable so it will do whatever you want it to do, its irrelevant whether its a vespa, Lambretta or any other two stroke. On top of that its a much better cdi than a standard cdi, giving a much more powerful spark!
Donnie, if your cdi stops working then so does your mtech

eden wrote:The kheper is fully programmable so it will do whatever you want it to do, its irrelevant whether its a vespa, Lambretta or any other two stroke. On top of that its a much better cdi than a standard cdi, giving a much more powerful spark!
Donnie, if your cdi stops working then so does your mtech

No s**t, so does the stator

Seriously though, a replacement cdi (in my toolbox) is a fiver, a replacement kheper? Sorry how much are they?

[quote="Monty"]
At the end of the day all we want is a poor mans Varitronic. Im sold on the benefits of advance and retard but also want full DC so Im limited/quote]

Im with you there, that's my setup, mtech and full DC wassel conversion, absolutely love it!

I seem to be in demand another mate (yes got a few) who I fitted the M Tech a good 6 months ago was struggling starting or it would start but not rev out. Normal thing may be the M Tech, simple to disconnect 2 wires, still the same, M Tech good, 3 more wires to swap the CDI but the same. Meter out the stator within spec, swap it for one of my old ones starts first kick. LT coil breaking down. Personally again the Kheper sounds great but maybe a step too far for most.

Donnie wrote:

eden wrote:The kheper is fully programmable so it will do whatever you want it to do, its irrelevant whether its a vespa, Lambretta or any other two stroke. On top of that its a much better cdi than a standard cdi, giving a much more powerful spark!
Donnie, if your cdi stops working then so does your mtech

No s**t, so does the stator

Seriously though, a replacement cdi (in my toolbox) is a fiver, a replacement kheper? Sorry how much are they?

a fiver? where you getting them from?

eden wrote:

Donnie wrote:

eden wrote:The kheper is fully programmable so it will do whatever you want it to do, its irrelevant whether its a vespa, Lambretta or any other two stroke. On top of that its a much better cdi than a standard cdi, giving a much more powerful spark!
Donnie, if your cdi stops working then so does your mtech

No s**t, so does the stator

Seriously though, a replacement cdi (in my toolbox) is a fiver, a replacement kheper? Sorry how much are they?

a fiver? where you getting them from?

Might explain why they don't last...

Indian one off ebay, it's lasted better then the supposedly quality BGM one I got last year. Make of that what you will. Still cheaper then the kheper which is the point im making.

how much is the mtech?

you can buy a kheper for the price of a £5 cdi and an mtech lol

and you get a top quality cdi and imo the best programmable adv/retard rather than a s**t cdi and a fixed selectable adv/retard.

Define s**t cdi.

The only s**t cdi is one that doesn't work. If you define a s**t cdi as how long they last then the BGM ones are indeed s**t

If you define it that it looks s**t but works perfectly well, then you are correct it is s**t.

However, your arguement re a s**t cdi and the mtech is equal in price to the kheper may be correct BUT again deflects from the point I have made at least twice now i.e. if the kheper fails youre f@@ked unless you have an £80 spare in your toolbox.
If my mtech fails i disconnect 2 wires from it and join them together and now I still have a running scooter, if the cdi goes, I change the simple cdi and have a running scooter.

I have no doubt that the kheper does what it says on the tin and it's great for some, but I suspect Im in the majority that wouldn't know where to start with it quite honestly and is hence overkill for that majority.

All very well saying the mtech has a fixed selectable advance / retard but to be fair there are 16 different settings, you only need one.

IF i believed that I could have bought and fitted an agusto I would likely have done that, again for it's simplicity, but with so many reports of problems with them (melting, breaking down or simply bought the 7000 when the engine would have been more suited to the 6000 or 8000) then the mtech gave the leeway to adjust that I was happy with.

Again, not saying the kheper is s**t, just saying it's rarely going to be used to it's full extent in my opinion.

if the kheper failed I would put my standard CDI on that's in my toolbox, take the flywheel off, set stator to the 16 degrees mark and carry on.

As far as setting the Kheper up goes, There are ready made curves to use if you don't want to make one yourself. its not rocket science!

The point of having a programmable ignition is that all engines are different, one curve that works well on one engine wont necessarily work well on another engine. that's the problem with adv/retard systems with a few set curves and is why I never ran an adv/retard system on any of my motors till a reasonably priced programmable one became available.

Its very easy to programme the curves, you just drag your curser. al you need to find out what curve would work is a dyno graph, tbh you don't even need that if you understand how and why an adv/retard helps your engine, just make a curve and try it, then make another and try that until one is found that works best. That method can be used using the curves that are already with the kheper, try one then try another and if you find that the motors works better at lower rpm with one and better at higher rpm with another you can then make your own curve which has the parts from the existing curves that you find work with your engine.

It really isn't as hard as you obviously think it is.