Minari 180 & 200

Warning for electric start models – DO NOT USE THE 14.8V LIPO BATTERY!  IT WILL BURN OUT THE STARTER.  USE ONLY A 12V LIPO.

All Italian paramotors use many of the same parts e.g. ignition system, carburetor, starter, throttle cable, engine & muffler mounts, spark plugs, among others.  If you do find what you are looking for here, check the Top 80 and Polini pages.

SPECIFICATONS – important info including maintenance intervals and torque values

Bearing condition – What condition are the bearings in my engine?  Which one is the most likely to fail first?

Bearing replacement and case disassembly and assembly – Here is how to replace the main crankshaft bearings and seals

Belt adjustment & diagnostics – redrive pulley misalignment is the main cause of redrive belt failure

Breaking in the engine

Carburetor info - Walbro WB-37 information, adjustment, & repair

Carburetor adjustment

Case assembly – see "Bearing replacement and case assembly" above

Clutch bearing replacement – It is done in the same manner as for the main bearings (see Bearing replacement... above).  Steel does not expand as much as aluminum so a press must be used to install the clutch bearings.  They will not just "clink" into place.

Clutch maintenance and repair – see the "User manual" and, in particular, "Rebuilding a paramotor" below

Cold weather operations – Unfortunately, the WG-8 and the WB-37 are very sensitive to both high altitude and/or cold weather operations.

Crankcase replacement – see "Rebuilding a paramotor" below.  The paramotor must be completely disassembled.

Cooling shroud – it dramatically lowers the engine running temperature

Cylinder head temperature gauge – Not having a CHT is like driving a car without any gauges or warning lights.  Most of the time you don't need them....

De-carbonizing a two stroke engine – Alex Varv shows how to do it without removing the cylinder.  However, I do not recommend using any sealant between the cylinder and cylinder head.  I have never had a  head leak when the "O" ring is new and installed properly.  The exhaust port should also be cleaned at the same time.

Decompression port check – Here is an easy, simple way to check whether the port is clogged or not.

Decompression port cleaning – It must be clear.  Failure to keep it free of combustion deposits will shorten the life of the starter.

Drips – Two stroke engine carburetors drip/leak fuel by design.  It cannot be helped.

Electrical schematic (of the Polini Thor models) – Later models of the Minari have an advanced magneto-type ignition system which is identical to the Polini Thor.

Electrical troubleshooting – How to check the electrical system of various paramotors

Emergency engine kill system – see "Kill system, alternate" below

Engine stall – see "Stall" below

Flywheel removal and installation

Fuel & oil specifications – 2.5% (40:1) full synthetic oil with premium MOGAS or AVGAS

Fuel filter – What kind/type to use?  If you choose poorly, the engine will also run poorly, if at all.  Removal and installation tips.  The fuel system MUST be purged of old fuel and air when changing out the fuel filter!

Fuel line size and installation – ID 4.8mm (3/16") x OD 8mm (5/16")  Use Tygon® LP1100 Low Permeation Fuel Tubing (ethanol resistant).  It is available from Miniplane-USA.  Do NOT use ordinary vinyl tubing as it will become stiff quickly and stress the connections on the tank and engine.  Auto parts stores do NOT have the right type.  Pure silicone grease may be needed to aid installation otherwise the lines may split.  BE ABSOLUTELY CERTAIN THAT THE FUEL LINE AT THE CARBURETOR INLET IS NOT LEAKING!  If there is no clamp at the inlet, use a 2.5mm (3/32") nylon zip tie double wrapped around the tubing.

Fuel system modification – the FSM dramatically fixes fuel starvation and most performance issues (still in the test phase)

Fuel system quick test

Fuel system test – A more thorough test of the fuel system

Ignition system – the Top 80 and the Minari have identical ignition systems (as of May 2019).  Please go to the Top 80 page for info.

Ignition timing – see "Timing" below

Ignition coil secondary wire replacement – This is the most common point of failure in the ignition system

Kill switch problems

Kill system, alternate – The inability to shut down a runaway engine could be exceedingly dangerous especially with the Minari 180/200.  This alternate system routes a cord from the spark plug boot to some accessible place.  Yanking the cord removes the source of ignition to the spark plug.  The engine will stop!

Manuals – see "User manuals" below

Midrange roughness & "four cycling" – see "Performance tuning" below

Mounts, rubber (engine) – Here is a way to quickly check them.  These are normal consumable parts that fail with use.  Pilots must keep an eye on them and replace them regularly.

Owners manual – see "Users manual" below

Parts diagram – note that these diagrams can have changes as the factory makes improvements on their engines

Performance tuning – Most paramotors run poorly in the midrange, the range that we spend most of our time flying in.

Piston failure – Madsen's (a chainsaw dealer) gives the various ways a piston gets destroyed with some info on the causes.  Paramotors are more like chainsaws than any other engine.  In fact, paramotors use carburetors from obsolete chainsaw engines.

Propeller hub info, removal, & installation – this page is particularly about the Top 80 but has important information relevant to the all hubs, especially vibration sources.

Purging the system of fuel – It must be done if a paramotor is to be stored for more than a few weeks, especially if you are using ethanol fuels.

Rebuilding a paramotor – includes disassembly and assembly of the major parts of the engine e.g. flywheel, cooling fan, clutch, carburetor, etc.

Redrive belt adjustment & diagnostics – see "Belt adjustment & diagnostics" above

Reed valve – if the petals get weak, chip, or break into pieces the engine will not achieve full power or may not run or start.

Safety net installation – on NEW Miniplanes the safety net comes already assembled and ready to install

Safety net replacement – replacement safety netting from Miniplane must be assembled.  Here is help to prepare the net for installation (above).

Safety net wear – How to minimize wear and tear on the safety net

Shroud, cooling – see "Cooling shroud" above

Spark plug installation – do NOT waste time troubleshooting an engine unless the spark plug is new, correctly gapped, and installed.

Spark plug type and gap – see "SPECIFICATIONS" below

SPECIFICATONS – important info including maintenance intervals and torque values

Squish – Pilots must get the correct size cylinder gasket to prevent overheating, detonation (knock), and engine damage.

Stall – Going to full throttle, the engine stalls!  What happened?

Starter – like the Polini's, the Minari's also have problems with their starters.  See the Thor Flash page for some maintenance notes.  Getting the electric starter seems to be the only long term solution at this time.

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

Throttle placement in the hand while launching a paramotor (Miniplane throttle)

Timing – how to both check and set the timing of a paramotor

User manual – from Minari   The English section begins at page 15

Vibration – see "Propeller hub info, removal, & installation" above

Warming up – when is a paramotor warmed up sufficiently and ready to fly?  When the cylinder head temperature reaches 70-80ºC, the fuel/air mixture is sufficiently hot enough to ensure that it is 100% vaporized and that the engine will not be fuel starved and potentially overheat.  Overheating can happen very quickly!

Water in fuel

Weight – 24.3 kg (53.5 lb) all up weight at take-off minus fuel (the 200 weighs a bit more)

Turkey Vulture