Custom Marine Inc.
147 W Jackson St
Seneca, IL

Service Description

Start preparing for a great summer of boating with our de-winterization. Following our custom check list, the watercraft professionals will view the engine/bilge area to determine if what attention is required before use. Unless, prior authorization has been granted, you will be contacted prior to actual repairs being completed. 


  • Battery: Inspect, check voltage and load test - charge if required
  • Battery Cables: Inspect
  • Belts: Inspect
  • Bilge Pump: Test
  • Blower Motor: Test
  • Drive Oil: Check fluid level - stern drive
  • Engine Oil: Check fluid level and condition
  • Hoses: Inspect and tighten
  • Hydraulic Fluid: Check fluid level - stern drive and trim pump pump if present
  • Flame Arrestor: Inspect and clean if required
  • Power Steering: Check fluid level - stern drive
  • Transmission Fluid: Check fluid level and condition - inboard
  • Overall, visual inspection of electrical, fuel line and control cable routing
  • Start up, check shift points and listen for audible abnormalities


  • Oil Pressure: Check function and reading
  • Temperature: Check function and reading
  • Fuel: Check function and reading
  • Volts: Check function and reading