Running too rich can cause problems By scooteraddict (Read 1,179 times)

[scooteraddict]

I came across an article that I found interesting. www.innovatemotorsports.com/resources/rich.php Although it talks about turbocharging, it explains the principle of running too rich can have an effect of a poor running engine.

In the short, this quote explains it all. "Therefore a richer mixture releases less energy, lowering peak pressures and temperatures, and produces less power."

Recently I have experienced this effect due to a bad enrichener which was making my bike run very rich. The end effect is that when the bike required high torque under load (mainly going up hills), I would loose power and it would seem like it was bogging down. Once I replace the enrichener, and tuned the bike with a new jet, it is running like a champ. I was able to achieve more power for hill climbing and higher speed on the flats.

For those who post that they can't get power for hill climbing, please take note that this might be a cause for your problem.

[Bashan]

Well chalk up one for why I don't like auto-enrichers. If they could come up with one that was reliable I'd be fine with them. Also, I think people do forget about the problems with running too rich. Sure, running lean can damage the engine and that has to be a big consideration. But running rich can make them run like crap. These little engines are pretty forgiving I've discovered but that only goes so far. Very good point and interesting article Scooteraddict. Rich

[jct842]

Anybody got any thing against making the auto enricher a manual with a simple toggle switch? It would be a simple task to do and easy to check its operation. john