WOT: TAG Kart Starter |
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WOT: TAG Kart Starter |
yeahmag |
Apr 26 2016, 10:55 PM
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#1
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Advanced Member Group: Members Posts: 2,422 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California |
These damn karts will be the death of me...
I have a Motori Seven TAG motor(s) with electric start and I think I face 2 gremlins: 1. Starter cranks over too slow (if at all) 2. Stator and Coil/CDI combo fires off at too high an rpm (1200 RPM) On a good day I can get the starter to spin the motor at 400-700 rpm. I've tried several starters, rebuilt one of the three starters (new brushes anyway), and direct connected the starter to HUGE, AGM batteries. No change. Presumably this isn't a current issue then... What DID make a change was upping the voltage. I started with 24V (2 - 12V in series) and then went to the track with my Dewalt Li-ion battery from my impact gun strapped to the kart (20V). The starter JUMPS to life with that thing and all is well in the world. But... What on earth is wrong with the 12V starters? I have two motors and 3 starters. Any combo of starter, batter, engine, and any connection method all do the same thing. Can I have some sort of failure in all there starters that wouldn't show up in ohm tests and visual inspections that would require them to need more voltage? |
PancakePorsche |
Apr 29 2016, 02:37 AM
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#2
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Member Group: Members Posts: 236 Joined: 29-July 11 From: Southern California Member No.: 13,373 Region Association: None |
I raced TaG for years. Starters always sucked and that is why IKF almost instantly allowed remote starters on the grid. As you stated the spin RPM was too low to excite the CDI Magneto and the bendix always jumping out early. The start motors were a cheap and poor design. When TaG was very new it was total panic on the grid. It REALY sucked when you qualified up front and could not start, especially on a cold day. If you aren't racing in a club, feel free to use whatever batteries work. If racing, the battery must be approved 12 volt unit per IKF rules.
I know people who made "stock legal appearing" 18 volt batteries. Using large gauge wire and good grounding helped a little. |
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