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  • Parts PM Tuning Fuel Injection Module GTS250

PM Tuning Fuel Injection Module GTS250

Article number: P-2793
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Plug and play fits all 250cc fuel injected Vespa and Piaggio models.

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The TFI was designed and developed to provide an affordable solution to increasing the ôfun factorö or ridability of your scooter. With todayÆs pollution regulations, many if not all of todayÆs scooters are setup extremely lean to meet these regulations. Unfortunately they are not always the best setup for performance or ridability. Therefore, adjusting the air fuel ration on these machines is essential to achieve optimum performance and ridability. The TFI is not an interceptor and it does not alter factory air/fuel computer tales or pulse-width calculations. It taps into the injector-driver circuitry of a stock scooters EFI and selectively appends extra pulse-width voltage keeping injectors open the exact incremental time required for precise fuel enrichment. The scooters on-board computer and wiring harness remain intact, with no wires needing to be cut. The stock air-fuel Map remains intact, as does its correlation to the engineÆs volumetric efficiency (breathing) curve.The TFi is simple to adjust. Four adjustable dials (pods) and circuitry in the control unit (1) define the breakpoint between cruise and ômain-jetö RPM, (2) the length of time and magnitude for auxiliary transitional enrichment, (3) and the incremental enrichment in tenths of milliseconds for the three operating ranges. The TFI unit is available as a pre programmed module to optimise the PM68 fuelling requirements with easily adjustable function should a different setup be required (E.G. using it with the standard exhaust system or other after market tuning parts) and can also be done at the side of the road if needed. Full instructions are available from PMÆs website detail coming soon - Customers feed back about the TFI unit - From Alan in New York USA - took the fuel module off, The scoot felt dead without it. What a difference in power that thing makes, its like day & night. Youll never know it till you ride with it for a week & then take it off

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