Hi, can anyone tell me what part this is? Sitting next to the battery and fuse box (slightly rear and near side) cylinder shape maybe 1.5" long. Has +/- terminals coming from the top of it with another 2 small wires I think from the ignition switch? When I push starter this solinoid/really just clicks rapidly. Has done this for years, would turn off and then start next try - but think it knackered this time around. Battery, connections and fuses ok. Any help welcome, electrics aren't my strong point !!!