Generac GN-724 / GN724 — Test Starter Motor
Testing & diagnosis · Electric starter
For the Generac GN-724 / GN724, from the Generac service manual.
Browse Generac generators & specs →
Before you start
- DO NOT clamp motor housing in a vise or strike with a steel hammer.
Procedure
- Remove starter motor and assemble to test bracket clamped in vise.
- Install DC shunt on negative battery terminal.
- Connect meter leads to shunt posts.
- Activate starter; note RPM and amperes after meter stabilizes.
- Good starter: minimum 6500 RPM, maximum 35 amperes.
Tools required
- Digital multimeter Amazon
- DC shunt (Briggs & Stratton P/N 19359) Amazon
- Tachometer (Generac P/N 042223) Amazon
- Starter test bracket Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Minimum RPM 6500
- Maximum amperes 35
Source: Generac service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.