by Jeff Goin | Apr 18, 2020 | 12: Maintenance, Mx: Motor, Mx: Troubleshooting
Walbro WG8 Carb used on nearly all 80cc paramotor engines out there and others I’ve had this problem many times, even on brand new carbs. You blow in the tank vent tube while pressing the needle release (for priming), and fuel doesn’t flow. What the suck?...
by Jeff Goin | May 15, 2019 | Mx: Motor, Mx: Troubleshooting
Notes and references to this specific engine. There is a wealth of information on Black Devil motors at AeroCorsair.com. Links are listed here for convenience. See also the Chapter 12 article on Getting Parts. Carburetor | Redrive Bearing Replacement | Overall List...
by Jeff Goin | May 15, 2019 | Mx: Troubleshooting
Resources for some common Simonini paramotor engines 2011 Mar 31 Thanks to Dan Clarke for information on correcting some Simonini issues and general information. 2007 Oct 2 Thanks to Adam Bell for the genesis and initial information on this page. This information is...
by Jeff Goin | May 9, 2019 | Mx: Motor, Mx: Troubleshooting
Help troubleshoot ignition problems, especially on 2-stroke paramotors A gas engine needs fuel, air, and spark delivered at the right time and in the right amounts. Spark involves really high voltages (20,000) which can create a number of problems. Kill switches on...
by Jeff Goin | May 9, 2019 | Mx: Troubleshooting
Adjustment and correction of problems found on Walbro Carburetors See also membrane carburetor overview, Buyers guide for Walbro Carbs and Rebuild Kits Visit http://tech.flygsw.org/walbro_tuneup.htm for even more detail. The most relevant parts have been included here...
by Jeff Goin | Apr 30, 2019 | Mx: Troubleshooting
The motor continues to run even after activating the kill switch | Emergency Kill All gas paramotors that I’m aware of shut down the engine by preventing a spark. The preferred method is by shorting out the coil with a switch on the throttle stem. Anything that...
by Jeff Goin | Apr 24, 2019 | Mx: Motor, Mx: Troubleshooting
Most paramotors use a manual pull starter due to its simplicity and light weight. They’re slightly more reliable than an electric start because no battery is required but they’re far from perfect. Problem Possible solution or link. Pull starter feels...
by Jeff Goin | Apr 24, 2019 | Mx: Motor, Mx: Troubleshooting
The ready supply of U.S. held parts for this machine is one of its draws. See also Specifics on the Top 80 There are at least three types of redrives for the Top 80 and several different gear ratios. The ratio is the number of teeth on the big gear divided by the...
by Jeff Goin | Apr 24, 2019 | Mx: Motor, Mx: Troubleshooting
Membrane carbs are sensitive to the pressure required to push the needle valve off its seat to allow fuel into the chamber: pop-off pressure. This tool makes it easy easy to do. There is a fairly wide pressure allowance and that the what you measure with the motor...
by Jeff Goin | Apr 24, 2019 | Mx: Motor, Mx: Troubleshooting
Ding the tip of your carbon prop? Is the prop in good shape otherwise? This may work to repair it if the damage is minor. It’s based on the same technique as covered in Chapter 12 of the PPG Bible. Flying a repaired prop could cause injure or kill a bystander if...
by Jeff Goin | Apr 23, 2019 | 12: Maintenance, 23: Motor & Propeller, Mx: Troubleshooting
It’s always good to support your local dealer to better ensure he/she stays in the business of providing support. But it’s also nice to know where parts are available can get you airborne when the dealer is unavailable or is not providing good service. As...
by Jeff Goin | Apr 23, 2019 | Mx: Troubleshooting
Anything related to fuel or getting fuel to the motor including gas tank See also Choosing Fuel & Oil | Does Avgas Run Cooler? Is Avgas Cooler? Priming Fuel Tank Repair The fuel system provides fuel to the carburetor. It usually consists of a tank with vent...
by Jeff Goin | Apr 23, 2019 | 23: Motor & Propeller, Mx: Troubleshooting
Causes and cures of this motor killer Heat is a paramotor’s mortal enemy. Worst cases have the piston welding itself to the cylinder wall in the mother of all motor failures: a seizure. A close cousin is the piston burning a hole through it’s top. Molten...
by Jeff Goin | Apr 23, 2019 | Mx: Troubleshooting
Automatic Decompressor These use vacuum from the motor to create a hole in the cylinder so that the motor is easier to pull through compression. It must remain open for easy starting and stay closed afterward for proper running. If the decompressor is stuck open...
by Jeff Goin | Apr 23, 2019 | Mx: Motor, Mx: Troubleshooting
For those who have aftermarket exhausts that vibrate and self destruct you will find this an early and easy fix before yours self destructs. Take a TOP80 standard crankshaft seal (for this application) and install it over the stinger. Place the silencer firmly against...
by Jeff Goin | Apr 23, 2019 | Mx: Motor, Mx: Troubleshooting
Thanks Scott Traverse There are a number of preventative measures you can take to avoid needing the troubleshooting guide. The picture at right shows one such mod but most are much simpler. Minimize vibration by using high temperature silicon around and through...
by Jeff Goin | Apr 22, 2019 | Mx: Troubleshooting
One of the most likely places for problems to appear is the tuned pipe and muffler. They usually revolve around vibration and cracking from heat. Exhausts usually have two parts, the tuned pipe and silencer. A few, like the box muffler of the long-retired Solo 210...
by Jeff Goin | Apr 22, 2019 | Mx: Troubleshooting
Start with the simple and cheap. Here are some that qualify. Repair cracks. Under air loads they can cause an aerodynamic imbalance besides sapping power. Static balance. Make sure the bolts are tightened evenly. If the prop is askew widthwise on its mount (making one...
by Jeff Goin | Apr 22, 2019 | Mx: Troubleshooting
If your motor doesn’t start on the first few attempts, something is wrong. Continued pulling without corrective action will just wear the starting system and decrease your respect for the prop—making a life-changing prop injury more likely. Troubleshooting is...
by Jeff Goin | Apr 22, 2019 | Mx: Troubleshooting
Problem Possible solution or link. Calculating Redrive Ratio If you have a paramotor for which you don’t know the ratio you can calculate it using one of several methods, measure the radius (or diameter) or count the teeth. Here are the details of each method....
by Jeff Goin | Mar 18, 2010 | Mx: Motor, Mx: Troubleshooting
The best thing to do if you suspect a carburetor problem is replace the carb with new. That way you can rule out the carb as a problem right away. Then, if you want to fix your carb, put it back on and start troubleshooting–at least now you know it’s the...
by Jeff Goin | May 15, 2008 | Communications, Mx: Troubleshooting
How to get radios to work with PPG gear, Thanks to Robin Rumbolt, Nick Scholtes and others It’s rarely plug and play, especially when mixing and matching radios and helmets. Robin Rumbolt is an electronics engineer who has done extensive helmet mods and created...
