Resistor plug cap with resistor spark plugs????
Hi hope you guys dont mind me using your forum but here goes, I am the owner of a microlight with a rotax 503 twin spark plug engine, of late its been loosing about 500rpm on full power after about 2mins of running at max power, checking the engine over today I noticed it has resistor spark plugs and also its fitted with resistor spark plug caps 5K ohm, could any of you guys advise if this is correct, I would have thought one or the other should have resistors in the them, me thinking it may weaken the spark them both being the resistor type, I should add I have only owned this aircraft a few months.
Regards Nick.