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If timing was everything we wouldn't need a transmission, sometimes you need to downshift. Proper timing to match load requirements and maximum consistent burn (expansion) of fuel are what you trying to achieve. Dan will soon be able to easily program his ignition test these changes and you will...

How many spark plugs have you changed that were truly worn out on a motorcycle? They most normally fouled out or damaged from heat from incorrect timing under load or heat range selection. With correcting timing and multi-spark the plugs will remain clean and last a very long time. Many of the...

Great questions 1. Seldom do people realize load increases the burn rate of the fuel (increases efficiency) and is very similar raised compression, that is why timing is reduced. 2. "Duration of burn" varies less with RPM if load and fuel don't change so greater advance can be used. i. e...

Fortunately this forum has some good examples of extreme load differences. Start with minimal load situations where you have lots of motor, torque, light weight and gear ratio so low you cant shift fast enough. Of course Joe and Hooch, probably the only Wing that can hit the rev limiter in high...

Let's address vacuum at the intake and proper setting of the VOES. Vacuum at the intake is not affected by RPM but by restriction of the intake by the carburetor butterfly or slide. When the engine is off you have no vacuum, when at an idle you have high vacuum and when you are accelerating...

I very much agree that the rear of the engine sucks, to bad it is so inaccessible. Should your stock ignition go bad be it stuck weight, vacuum advance or other you still have to go in. Points are great and so is a dial phone as it is proven but I own a Nexus 4 Android.

Don't confuse Firmware with the Ignition timing map (curves). Firmware is not frequently updated and was last updated 1 year ago to improve kick starting and reducing kick back when kick starting. The timing maps (curves) have been solid for a much longer time than that but can be modified if...

1st people must understand how all aspects of the engine work to understand why the timing is placed where it is optimal for performance without damaging the engine. Let's start here with the question of the mechanical/vacuum advance mechanism so we will discuss vacuum intake manifold vacuum...

This is mostly due to the Multi-Spark, if you burn (expand) more fuel your efficiency increases and in an unloaded condition this is seen as a raise in RPM This is due to the stability (precision) of the spark placement and the above. You will always see a greatly improved acceleration with...

See Paul beat me to it. No, the ignition is a wasted spark only. If you wish to have a sequential (single fire) version you would completely double the price requiring 4 output circuits and 4 coils. Wasted spark is not the problem and the we have idled down several GW's to 400 - 450 rpm. Most...

Timing can be set with the use of a simple 9 volt transistor battery. Just hook the red power wire of the ignition to the (+) of the 9 volt battery and the Negative to the (-) of battery, do not use any other wires. Have the engine on TDC and rotate the Optical Encoder in to the direction of...

Naphtha, kerosene, WD40, ATF and many other concoctions have been added to gasoline and people swear they are the cure all. Naphtha is a higher distillate and will raise you octane and many of the the distillates will change the effective burn rate when combined with gasoline. This affects the...

They may have CDI in their part # but they are not a CDI (Capacitor Discharge Ignition) part and thus the problem in coil selection as a CDI coil would be about that ohmage. With ballast resistor in circuit you are drawing 6 amps and they saved your ignition. The current dropped across them...

See viewtopic.php?p=91507#p91507 You have basically proved the Neon coil test. Yes, you would show more current draw more at an idle with those coils and as you increased rpm you would reduce saturation of the coil and reduce the draw. Bet those ballast resistors were close to glowing in the...

The resistor in the spark plug cap has nothing to due with the ballast resistor. The ballast resistor is on the primary side of the coil and the resistor in the spark plug cap is on the secondary side of the coil having a completely different function in the circuit. Extreme EMI (Electro...

Exactly correct, it is a reverting of the potting compound used to back pour the coil, I have seen i happen many times. It's not supposed to do that but does fall with time, heat and vibration.

I quoted AApple and forgot to say he is correct! Powering the coils this way could be done but not triggering them. Apologies AA

1st no way, but let's look at just 1 aspect. The cycle life of the relays in question are 100,000 to 1,000,000 let's use 1 million. Just for simplicity use the Goldwing engine running at 2500 rpm, the cam would rotate 1250 rpm and the points (relay) would open and close 1250 times a minute. If...

Tach Talk One of the most asked questions is which tachometer do I use. Let’s start out by defining what a tachometer is and what it reads. A tachometer (revolution-counter, Tach, rev-counter, RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, in an automotive engine...

Ballast Resistors: A ballast resistor is common in many cars older cars, and was put inline with the power (+) to the coil. When the starter is engaged a relay bypassed the ballast resistor supplying full voltage to the coil to correct the voltage drop in the system that occurred when the...