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Stu, It seems from you post that starting is your problem? Fromm details posted it seems that your charging system is working but can't tell if it is working properly. There are several things you can check/try. You wrote:I am pretty sure that the charge in the battery is not full. Then recharge fully (off the tractor if necessary) with a correctly functioning 6V battery charger until float voltage is reached or gassing occurs. Then check the specific gravity of the cells after a suitable standing period. You wrote:its not a really strong battery Check the voltage after several hours rest period, check the battery with a load tester to see if is good or bad. Check charging voltage is within correct specs, with engine running at operating speed. Check there is no drain on the battery when not in use. You wrote:wiring (not touched) THIS is a potential area for high losses with a 6 volt system. Check out all connections and cables for any excessive resistance (large cross ection cables and tight connections on large, brightly cleaned metal contact areas are a 'MUST HAVE' for a 6 volt system. You wrote: it takes some cranking to get it to go Perhaps the engine needs a tune-up. Wrong timing, poor spark quality, wrong mixture, wrong oil (too heavy grade), tight valve clearance can all make starting more difficult. Do you depress the clutch when starting? can help by reducing drag from transmission. If so, does the clutch drag? If not, is the back end oil too heavy? Is the starter motor up to snuff? Check out with a fully charged battery (with no circuit losses due to poor connections or wrong thickess cables). Any voltage reduction in the battery cables can seriously reduce your cranking speed and the spark quality at the same time, so it is important that everything is kept in good fettle with a 6 volt system. You could, if you have the facility, try starting using a crank handle, to see if it starts easily without the starter load. Lots of possibilities. As a last resort, I suppose, you could convert to 12 volts, but I see that as a poor way out for those not able to keep the systems in proper tune, as they were when new. Regards, RAB
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