[MaximX]

FOG - this is mainly for you.

I have tinkered with the idea of buying a CO measuring tool like an exhaust gas tester.

Do you have to have a dyno to truly tune the bike throughout the rpm/power range? Or can you simply rev the bike up and tune it according to rpm vs. CO output?

In other words, does your CO output, and therefore the correct engine mixture change according to the load on the engine?

The reason I ask is because I don't want to buy an expensive gastester if it only allows me to tune the bike at idle because I don't have a dyno.

Thanks in advance!

 

[fog]

Don't buy the tester. With out a way to hold the rpms steady under a load (dyno) you'd only be getting false readings. or a test at Idle. Just what inadequacies are you trying to tune out. All the dyno work of selecting the jets and needles was done at the factory. Minor tweaking as done by the Dynojet people and others yields very little in the way of improvements. Are you a Masochist?
FOG

 

[MaximX]

Posted on: Today at 12:10:08 amPosted by: FOG
Are you a Masochist?

No, an engineer. AKA a tinkerer.

I thought that you said that the bike runs a little rich on the top end usually. I thought a CO tester would be good for my cars too to be able to tell when the O2 sensor needs replacing. However, a dyno run can be had cheaply in these parts, so you gave me the answer I was looking for. I will not buy the CO tester.

 

[bitzz]

Why not just put some bungs in the pipes and run oxygen sensors. Tune for 7.5 volts.

 

[NinjaTwist]

You mean 0.75 volts (assuming narrow band O2 sensor output, which goes from 0 to 1 volt).

 

[MaximX]

That would cost just as much as a CO sensor, and I couldn't use it on all of my vehicles.