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GTS lost keys
Posted: Sat Mar 03, 2012 8:30 pm
by grayspeed
I've been offered a written off GTS300, cat B so has to be broken for spares. I've been considering converting a GP to auto so this would be ideal, only problem is the keys are missing. Is it a simple case of getting another ECU and keys or is there another way? Other option I suppose is to sell the bits and build a rotax or runner engined GP. Any idea of the value of the 300 engine with only 900kms?
Re: GTS lost keys
Posted: Sat Mar 03, 2012 9:55 pm
by RICSPEED
what you have on these is an immobilizer key ,receiver antenna thing which is linked into the cdi /cpu unit ..you cannot simply remove the the key transponder/ antenna as the CPU needs a signal to allow motor to start .. pm tuning do an immobilized cdi/CPU .. i think these are about £100 +
Re: GTS lost keys
Posted: Sat Mar 03, 2012 10:12 pm
by e type
Hi gray the pm immobiliser don't work on 300 gts only 125/200 .With the gts 300 when u lose the brown master keys That match the ecu u have is replace the ecu/throttle body and lock set/keys...with the new/replacement make sure there's a brown master key with the new ecu because this is the only way of making a spare blue key work too as they have to be tuned in with a brown master each time . You could prob go carb'd too an ditch the ecu/immobiliser like the scomadi 250/ piaggio beverly 250/300 engines but I've not done this yet so don't know if it works Ask frank Sanderson he may be able to help
Re: GTS lost keys
Posted: Sat Mar 03, 2012 10:39 pm
by RICSPEED
e type wrote:don't work on 300
i did have in mind that may be the case .. i should have said as such
Re: GTS lost keys
Posted: Sat Mar 03, 2012 10:48 pm
by rondon
yeah I was gona say all that too

Re: GTS lost keys
Posted: Sat Mar 03, 2012 10:54 pm
by rondon
naa but seriously , do some research & save ya self some money, I bought all new electrical components including a genuine piaggio cdi for a project ( shelved for now) only to learn I needed an unimobilised malossi cdi ( which I now have) & a genuine piaggio cdi (got a get that on eBay)what cost me £90
Re: GTS lost keys
Posted: Sun Mar 11, 2012 7:54 pm
by grayspeed
I believe the ECU does ignition too so running a carb would still need some way of advancing the spark? If I had a wiring diagram I may be able to see what's going on.
Re: GTS lost keys
Posted: Sun Mar 11, 2012 8:00 pm
by twin
just get a runner engine,to put in the lammy,air cooled so no rad,
Re: GTS lost keys
Posted: Sun Mar 11, 2012 8:02 pm
by e type
I don't have a diagram but if you look at how the Beverly or x9 250/300 work an copy em like frank did with the scomadi