04-04-13, 09:58 AM
(03-04-13, 10:06 PM)carrier link Wrote: The starter engine doesn't take that much power however the sparkplugs take a massive amount...Yes, you've got that the wrong way round. The CDI will only take an amp or so, the starter motor is rated at 700W and will typically draw 70A allowing for voltage drop.
If you suspect weak sparks as the cause of your starting problems it's easy enough to pull a plug cap off and either stick a spare plug or screwdriver in the cap and let the spark jump to an engine fin (not the cam cover... that's insulated). It should manage 5 to 7mm. Don't try to make it jump further than that, the spark is what limits the voltage... too large a gap can cause coil insulation breakdown.