Question about 1984 BMW K 100 RT

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84 k100rs runs poorly hard to start at times no power over 3000 rpm cuts out on road after 30 seconds running, some times hitting fuel tank brings it right for short time. have checked fuel pressure40 psi but did show signs of pulsation at times, dismantled pump looks good. occasionally goes perfectly but then will play up again without warning.have checked relays, and connections both inside a outside tank, tank connector not good but does not appear to be the problem.suspect it may be the fuel pump itself but not convinced.

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Problem could be throttle sensor situated on left side of bike below fuel tank, your symptons appear similar to mine of past. Cured mine by fitting new sensor.

Posted on Jul 30, 2010

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