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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.
General assembly instructions - It is CRITICAL when assembling the Thor engines that the manifold mounting nuts be properly torqued with blue threadlock if you do not want any leaks.
Assembly Video – This is for the Thor 130, other models similar. If someone wants to send me $250, I'll publish a video of how to assemble other models.
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 flange springs* – Use paraglider line to stretch the springs for
replacement/removal. Do not use Vise-Grips or pliers to stretch
the springs because this will nick the tempered surface of the spring and weaken it. Here is a video on how to properly do it. A defective
exhaust flange gasket cannot be fixed with RTV – replace the gasket. Use PG line (best) or aircraft wire to secure the springs if they break.
Exhaust system installation – 1. Install springs
first per above. 2. Install the buttonhead screw underneath carburetor first THEN 3. Install the
buttonhead screw underneath the springs. Use blue threadlock on screws and tighten 3-4 Nm (just snug, let the threadlock do its job).
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.
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* – Here is a way to quickly check them. If you replace them with the heavy duty Viking mounts, do not make the mistake noted here.
Performance Issues, general – This is what to do if the engine will not start or, for example, dies at full throttle
Performance tuning – Most paramotors run poorly in the midrange, the range that we spend most of our time flying in.
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 – Check the specific Thor manuals on this website for most torque values. If you cannot find the correct value, check the the Top 80 specification page which has a thorough torque section. Hit "page down" twice to see it.