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Polini Thor information for most models

The Thor models share a common design and many parts.  If you cannot find the info you need below or on the individual Thor model pages, check the Top 80 section for a wealth of info that is common to all Italian paramotors.

PARTS AVAILABILITY – an "*" after the item means we usually stock it.  We can get most other engine parts but it may take a week or more.  We are first a paragliding school and the rest of it we do when we have time.  Contact us to order.

Assembly Video

Bearing condition

Bearing replacement

Carburetor* – The Thor 100 and 130 use the WG-8   The Thor 190 and 200 use the WB-37.  If your engine is not purring like a kitten in the mid-range, you need to perform the midrange modification on your carburetor.  The Thor 250 has a custom Polini carburetor (we do not stock this one).  It is more like the Bing which has a fuel bowl.

Choke control – This is needed for safety and convenience.

Clutch* – Information and servicing procedures.

Clutch Oil – Here is a list of the oils that can be safely used in the Thor redrive.

Coil secondary wire replacement – This is one of the most common points of failure in ignition systems.

Cylinder head gasket set and exhaust flange gasket* – contact us to order

Electrical troubleshooting – How to check the electrical system

Exhaust port – leak issues

Exhaust springs* – Use a piece of PG line to stretch and remove them.  DO NOT USE PLIERS!  Use PG line (best) or aircraft wire to secure the springs
if they break.

Flash starter* – This starter has some major problems but they are largely fixable.

Flash starter Installation Manual – Here is the "how to" for installing the modified Flash starter insert into the original starter.

Fuel – This is from Polini.  See also the fuel oil specification page for more detailed information

Ignition coil – the black wire goes to ground, the blue wire goes to the kill switch

Kill Switch Problems – A low bidder made the wire used in the kill switch circuit.

Mounts, rubber* – If you replace them with the heavy duty Viking mounts, do not make the mistake noted here.

Performance Issues, general

Performance Issues, midrange – It is particularly a problem at high altitude.

Pulleys – see "Starter pulleys" below

Spark plug installation – this is the "how to".  For type of spark plug see 'SPECIFICATIONS" below


Springs, exhaust – see "Exhaust springs" above

Starter* – see "Flash Starter" above

Starter pulleys – The OEM Viadana pulleys will quickly wear out and fail.  Here is the solution...

Starter Replacement Cord – The strongest and longest lasting you can install on your engine.

Starting – Start your engine the first pull, every time.

Stress cracking of engine components – see "Mounts, rubber" above

Throttle cable – Cleaning, lubrication, modifications, and cruise control info.

Torque Values – This is the Top 80 specification page which has a thorough torque section.  Hit "page down" twice to see it.