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Before a 6/12 conversion, you might want to check the condition of your battery by having a battery shop perform a load test or first just give her a good charge and see how well she cranks or try a good substitute battery and see if it cranks better!!!!! !!!!! !!!!! Does it??? The battery should have electrolyte above all its plates and no cells have a gray or milky appearance. If the battery is bad, I recommend the use of the heaviest duty highest amp/hr or CCA battery you can fit into the box and 00 Gauge cables. 1) Other causes of slow cranking if the battery checks and/or you use a known good sub battery, are bad cables or connections or a poor ground: I recommend the use of 00 Gauge battery and starter and ground cables, but first at least remove, clean and wire brush, and re attach each and every battery and starter and ground cables, you may just have a bad cable or connection. Light gauge cables or bad ends kills cranking on 6 volt systems. If all that dont help, try reattaching the ground cable to the frame or closer to the starter as a rusty battery or seat box may not form a good ground. 2) If the battery, and cables, and grounds are all good and she still dont crank well, the starter or switch/solenid could be bad, you may want a starter shop to check them before doing a conversion. 3) Charging system: If shes charging, a voltmeter on the battery should rise from 6.3 volts to the 7 to 7.5 range at Wide Open Throttle. Also if shes charging, the lights should glow noticeably brighter from idle to WOT, do they???? You have a working ammeter??? Does it swing to discharge tractor not running and lights turned on??? Does it show charge when running and at WOT ???? Do you know if you have a larger 3 or 4 wire Voltage Regulator on the Generator or a smaller 2 wire cut out relay system??? STARTER MOTOR/BATTERY SUMMARY I would definitely first have the battery charged or checked and load tested or replaced,,,,, ,, check, remove and wire brush and re attach all cable connections and inspect or change the ground cable location,,,,, ,,,,change to 00 Gauge Cables if needed,,,,, ,have a starter shop check the starter and switch or solenoid BEFORE ANY CONVERSION. 6 TO 12 VOLT CONVERSION If you insist on changing to a 12 volt system, you will need a 12 volt battery,,,,, maybe (depending on if you have a mag or a distributor and what brand type) add a series ballast resistor in the ignition primary circuit if you use an existign 6 volt coil,,,,, ,,,change bulbs to 12 volts,,,,, ,,,,,and a 12 volt generator and regulator system,,,,, ,,,you can use the 6 volt starter at 12 volts if its good and you avoid long periods of cranking. I have used 6 volt generators and just changed to a 12 volt regulator and they worked, but the CORRECT answer is to get a 12 volt gen and regulator if you convert. CHARGING PROBLEMS; I would try the above and post back or e mail if you have a regulator or cut out relay system and answers to my questions above, and then I will post or e mail you my complete charging system troubleshotign procedure. The above enough to digest and try for now. Let me know, good luck n God Bless ya John T [email protected]
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