799866 Carburetor for 190CC 675 Series Engine, for Craftsman Gold 6.25 6.75 HP MRS Push Mower for Troy Bilt 6.75 725EX TB230 Lawn Mower

What It Is

This is a direct-replacement carburetor for 190cc 675 Series engines, specifically designed for Craftsman Gold 6.25/6.75 HP MRS push mowers and Troy-Bilt 6.75/725EX TB230 models. It meters fuel and air into the cylinder to keep the engine running smoothly.

Fitment & Compatibility

• Engine check: Must be a 190cc 675 Series (e.g., MTD, Briggs & Stratton). Look for “675 Series” stamped on the engine shroud.
• Mower models: Fits Craftsman Gold MRS with 6.25 or 6.75 HP, Troy-Bilt TB230, TB240, and some Cub Cadet/MTD push mowers with the same engine.
• OEM vs aftermarket: This is an aftermarket part, not OEM Craftsman. It matches OEM #799866 but may have minor differences in gasket thickness or jetting.
• Measurements: Check the mounting bolt pattern (two holes, ~2.5" center-to-center) and the fuel inlet tube diameter (typically 5/16"). Verify your old carb’s float bowl and choke linkage match.

Key Things to Know

• Quality is decent for the price – works well for most users, but a small percentage report needing to clean out debris or adjust the float height.
• Installation is moderate – you’ll need to swap the old carb’s throttle/choke linkage and primer bulb. Expect 30-60 minutes if you’ve done it before.
• Common gotcha: The gasket included may be too thick; reuse your old one if the engine runs rich (surging, black smoke).
• No adjustments needed – it’s pre-set, but you may need to tweak the idle screw (if equipped) for a smooth idle.

Should You Buy It

Buy this if you have a 190cc 675 Series Craftsman or Troy-Bilt mower that won’t start or runs rough due to a clogged carburetor. It’s a cheap, effective fix for DIYers who want to avoid a shop visit, but skip it if you’re not comfortable swapping linkage or cleaning a carb – you might be better off with a genuine OEM part for guaranteed fit.