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The following pages show what’s involved in fitting Yamaha R1 carbs to a car engine, including stripping and inspecting, modifying and sourcing all the necessary parts. ENGINE MANAGEMENT The R1 carbs use a throttle position sensor, which acts like an electronic version of a vacuum advance and retard for the ignition. It needs to be connected to the ECU, but the carbs will still work properly if not. Therefore, if you don’t have an engine management system, don’t connect anything to it. If however you have a standard engine management system, it can be connected - but better results are achieved using an aftermarket system from the likes of MBE, DTA, Omex and Emerald. Use the R1 connector plug and connect the appropriate ECU wiring to it. INLET MANIFOLDS AND ENGINES Bogg Brothers has already created templates for all the 8V Vauxhall engines from the 1.3 to the 2-litre. Its also created templates for the C16/C20XE and X20XE. However, the company is also willing to make a manifold for any engine providing the customer supplies a standard inlet manifold gasket. FUEL PUMPS The R1 fuel pump is best suited to the carburettors. It contains an interrupter pump, which stops the fuel supply if the carbs are full so that you dont need a fuel pressure regulator. Motorbike breakers usually sell these pumps for around £30 each. Use an inline filter between the petrol tank and fuel pump. The electrical connection on the pump requires a live feed and an earth. STEP-BY-STEP: QUICK FITTING GUIDE. Remove the existing fuel system and inlet manifold and clean gasket faces on the cylinder head. Attach the throttle cable to the accelerator pedal and route the choke cable to the lever inside the car. Start engine, allow float bowls to fill with fuel and check for leaks. How to dismantle and inspect a Yamaha R1 bike carburetor. MORE MODIFICATIONS If you ve got a seriously modified engine boasting performance camshafts.

Tags : throttle position sensor, fuel pressure regulator, engine management system, earth step, accelerator pedal, vacuum advance, inlet manifolds, fuel pumps, petrol tank, performance camshafts, omex, connector plug, c20xe, inlet manifold, inline filter
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