Polini Thor 190 Light
The Thor models share a common design. The info below is unique for the 190. Please see the Thor all models section for info that is not found here. The Top 80 section has detailed info on things like the carburetor function and tune up (used by all Miniplane and Polini engines), and troubleshooting issues.
Carburetor – Walbro WB-37 information, adjustment, & repair
Cylinder head, temperature, maximum – 230°C and 250°C maximum running temperature, never exceed 265°C/280°C but only for a few seconds.
Flash starter – The This starter has some major problems. Here are various solutions, including adapting the Miniplane Top 80 system to the Thor.
Parts diagram w/o clutch or electric starter. Note Polini updates these lists frequently so this diagram may not be 100% accurate.
Parts diagram w clutch Note Polini updates these lists frequently so this diagram may not be 100% accurate.
Parts diagram w electric starter w/o clutch
Spark Plug – NGK B9ES, gap 0.9mm (0.035")
Specifications including torque values are in the "User & Maintenance Manual" below. Many specifications are similar to the Top 80.
Starting – Start your engine the first pull, every time.