"Take care of your Honda and it'll take care of you" is a catchphrase used often by Honda riders. But even though Honda motorcycles are well known for being powerful, reliable workhorses, they are not immune to technical failure. Knowing how to diagnose one's own motorcycle problems is an indispensable skill to have when traveling on two wheels or serious commuting. The best Honda-certified mechanic cannot fix a motorcycle if he does not know what is causing it to fail.
Things You'll Need
- Adjustable wrench
- Compression gauge
Check the fuel flow to the carburetor. Be sure that the fuel petcock is in the "On" or "Res" position and that there is fuel in the tank. Check the breather on the underside of the tank. If it is clogged, fuel will not run through the line.
Check for spark. Examine each spark plug for rich mixture (black or brown residue on the tip) and perform a spark test on each by grounding it against the crankcase or cylinder head and pressing the starter button. If there is no spark, check that your starter is working correctly and that the battery is charged.
Test cylinder compression with a compression gauge. Without compression, the spark plugs will not ignite fuel correctly. If compression is low, check for leaks or other damage to the cylinder head and for worn cylinder and piston rings.
If the engine starts, but then dies quickly, there could be a multitude of issues, including but not limited to improper choke adjustment, intake pipe leak, incorrect ignition timing, contaminated fuel and incorrect carburetor adjustment. The most common, however, is a worn or old air filter. Air filters are inexpensive ($30 to $40 dollars for most Honda motorcycles) and easy to remove and install.
Honda motorcycles are notorious for their "dead spot" just after idle. If your motorcycle starts and idles well, but dies when given a small amount of throttle, you may need to shim the carburetor needle in order to deliver fuel to the engine more quickly.
Tips & Warnings
- If the motorcycle starts, but does not run correctly at high speed, it is most likely that the valve timing needs to be adjusted. If your motorcycle runs well at speed but does not idle correctly, you may need to adjust the idle screw beneath the seat on the side of your motorcycle.
- It is best to perform any procedure with the aid of Honda service manual to avoid causing even more issues to arise.
How to Troubleshoot Honda Problems
Vehicles require constant maintenance, repairs and care for optimal performance. When the vehicle has problems, it is important to troubleshoot them so...
How to Tell the Year of a Honda Motorcycle
Honda designs, manufactures and distributes a broad range of motorcycles. Street models include Touring, Sport Touring, Crossovers, Cruisers and Choppers. Each ...
ATV Carburetor Troubleshooting
When you are having trouble with your ATV, oftentimes the carburetor can be the secret culprit. A host of things can go...
How to Troubleshoot a Motorcycle Transmission
The transmission in a motorcycle allows the driver to regulate and control the speed of the bike with the clutch in a...
How to Repair a Honda Motorcycle
Honda has many motorcycles on the market. Replacing the drive chain/belt is a universal job and is not complicated to complete. The...
How to Troubleshoot a Honda VTX 1300
Honda introduced the VTX 1300, a cruiser motorcycle with a 1,300-cubic-centimeter (cc) engine, in 2002. Though Honda motorcycles have a reputation for...
How to Bleed the Clutch on a 1986 Honda Shadow 1100
eHow; Car Repair & Maintenance; Other Vehicle Repair & Maintenance; Bleed Clutch; How to Bleed the Clutch on a 1986 Honda Shadow...
How to Fix the Idle on a Honda Motorcycle
Engine idling speed, the speed at which an engine turns while at a complete standstill, can play a major role in the...