ATF is not to be used with HEIU injectors, it can trash a motor, ecpecially at 37 to 1 ratio. We used to mix only 1 quart to 100 gallons in the old diesels, and that was plenty. I would use a good safe injector cleaner like Lucas, stanadyne, pwerRead More →

Fuel injection doesn’t give appreciably more power, and it doesn’t provide much better gas mileage. Fuel injection does allow for more accurate control of the air/fuel ratio, and in doing so, allows a bike to run cleaner and keep a catalytic converter on board. … And carbs did not holdRead More →

Early signs of a failing fuel pressure regulator include engine misfires and poor acceleration and fuel mileage. The reason we batch them together is that each is caused by the same thing, the air/fuel mixture being off. Do you need a fuel pressure regulator with a mechanical pump? Most leverRead More →

If a fuel injector cleaner contains any additives that are not designed to be sensor-safe, it can lead to malfunctions or damage oxygen sensors. … A damaged O2 sensor can cause engine hesitation, black exhaust, a loss of fuel efficiency, and the check engine light may come on. How oftenRead More →