---
id: fourwinns-h190
kind: equipment
display_name: Four Winns H190 Freedom
current_guide: guides/fourwinns-h190/fourwinns-h190-service-guide-v0.1.html
current_guide_version: 0.1
guide_status: draft
last_session: 2026-04-28
latest_handoff: handoff-blocks/fourwinns-h190-2026-04-28.md
---

# Four Winns H190 Freedom

## Current state

Guide v0.1 rendered against canonical template structure (interim
CSS — canonical styling pass pending Claude Code). Scope of v0.1 is
spring commissioning of the cranking circuit only: battery
replacement, parasitic-draw isolation, cable inspection, charging
voltage verification. Engine, fuel, ignition, drive, and lower-unit
service explicitly out of scope for v0.1 — those will get their own
versioned scope in subsequent guides.

## Open items

- **Parasitic draw test pending** (DHL-001 H3 — BLOCKING): Sam to
  execute Part 02 procedure with new battery installed; report
  reading.
- **Cable inspection pending** (DHL-001 H5): Sam to pull cable boots
  during battery swap, inspect for hidden corrosion under insulation.
- **Charging voltage check pending** (DHL-001 H4): once engine
  commissioned, voltmeter at battery posts at 1500 RPM; spec
  13.0–14.7 V (// UNVERIFIED against 1989-issue OMC service manual).
- **Battery box dimension measurement pending**: confirm Group 24M
  vs 27M physical fit before purchase.
- **Canonical CSS render pending**: guide v0.1 styling is interim;
  full canonical-template render to be done by Claude Code.
- **Spec verifications pending against OMC `0507759`**: charging
  voltage, alternator P/N, `MED` configuration suffix in engine
  model.

## Pointers

- Latest guide: `guides/fourwinns-h190/fourwinns-h190-service-guide-v0.1.html`
- Versioned guides: `guides/fourwinns-h190/`
- Handoff blocks: `handoff-blocks/fourwinns-h190-2026-04-28.md`
- Diagnostic logs: `guides/fourwinns-h190/diagnostic-logs/DHL-001-battery-no-charge.md`
- Architecture: `architecture/pending/` — no open DRs touching this entity

## Specs (verified this session)

- **Make:** Four Winns
- **Model:** H190 Freedom
- **Year:** 1989 (HIN + registration confirmed)
- **HIN:** 4WNTH065L889
- **Hull length:** 19 ft 0 in
- **Hull material:** fiberglass, open-bow
- **Engine:** OMC Cobra 4.3L V6 (GM 262 ci, ~190 hp), MOD `432APRMED`,
  SER `T1132957`, 2bbl carb, RH rotation, power steering equipped
- **Drive:** OMC Cobra, MOD `985685`
- **Stock alternator:** OMC `0985465`/`0985466`, 51 A, Motorola/Prestolite
- **Service manual:** OMC `0507759`
- **Owner:** S. Foran (own boat, no customer prefix)
- **Storage:** trailer in driveway, Commerce Twp MI 48382, cover on
- **Last run:** fall 2025

## Specs (unverified, pending source confirmation)

- Charging voltage spec `13.0–14.7 V` — cited from 1987-issue OMC
  service manual via iboats forum; same charging-system generation
  as 1989 but not 1989-issue confirmed.
- Engine model suffix `MED` — partial decode pending OMC
  documentation.