Mower Vault

My Yard Fleet

No Mower Selected

Choose a mower from the list to view specifications, record maintenance logs, or track reselling profits.

John Deere D140 🔧 Repair Phase

2014 John Deere D140

Identification

Nickname: Make: Model: Year: Serial #: Image URL: Manual:

Engine & Size

Engine model: Deck Size: Oil Capacity:

Replacement Consumables & Belts

Spark Plug: Air Filter: Oil Filter:

Deck Belt: Drive Belt:

Standard Checklist

Oil Changed Blades Sharpened Deck Leveled Belts Checked Carburetor Cleaned

Add Repair / Part Cost

Repair/Part Name

Part Cost ($)

Work Done Notes

Date	Repair Item / Part	Notes	Cost	Action

Add Mower Project

Nickname / Name

Make (Manufacturer)

Model Name

Buy Price ($)

Buy Date

Settings

Customize your AI settings. Your key is stored strictly on your local browser cache and never sent to our servers.

Gemini API Key Get a free key in 30 seconds from the Google AI Studio.

Backup Provider — OpenRouter (optional) Model ID Used automatically if Gemini fails or isn't configured. Get a free key from OpenRouter — model ID is editable so a future retirement doesn't break this again.

Checking status...

Welcome to Mower Vault

Project repair checklist & flips tracker

Mower Vault is a digital ledger designed to help track riding lawn mowers you buy, repair, maintain, and sell. It is completely private and runs 100% on your device.

100% Private & Offline Storage

No mowers, serials, costs, or repair logs are ever uploaded to Thorpe Tech servers. Everything is stored inside your browser's local cache database.

⚠️ CRITICAL BACKUP WARNING: Clearing your browser history, cookies, or database cache will erase all your projects. Make sure to use the Save Backup or Google Drive Save buttons regularly to keep a copy of your database.

What the App Does

🔧 Specifications Filler Get Deck Belts, Drive Belts, Spark Plugs, and Oil capacities automatically using the **AI Specs Enrich** tool.

📊 Flip Business Ledger Type in your buying price, repair costs, and final sale price. The app handles margins and ROI calculations.

🛠 Maintenance & Parts Log Keep track of standard maintenance checkmarks (oil, carburetor, sharpening) and log individual part costs.

📺 DIY Repair Videos Instant shortcuts to YouTube belt routings, mandrel changes, and carburetor fixes specific to your mower model.

How to Get Started

Add a mower via the + Add Mower button on the left.
Open the mower, select **Specs & Parts**, and click **AI Specs Enrich** to search for belt parts.
Add parts expenses in the **Repair Log** tab; this will automatically calculate total flip expenses.
Change the status to **Flipped / Sold** and enter the final sale price in the **Business Ledger** to log your profit margin!

System Log

Chronological history of Mower Vault development

v1.2.0 — Demo Data & Reliability Fixes (Latest) June 2026

Added (Demo) labeling and safe migration patches for pre-populated sample data, a real John Deere D140 photo, hotlink-safe AI image prompts with client-side fallbacks, and switched to the latest stable Gemini/OpenRouter models with instant quota-aware fallback. Fixed a dead parts-lookup link in the repair guides.

v1.1.0 — AI Enrich & ManualsLib June 2026

Added ManualsLib manual lookups, Test Key buttons for Gemini/OpenRouter in Settings, and repaired AI enrichment with an automatic OpenRouter backup provider.

v1.0.0 — Initial Release May 2026

Launched Mower Vault — a repair & flip ledger for tracking project mowers, with local image uploads, AI-assisted image search, and Google Drive backups.

View All Portal Updates