Exhaust Gas Temps

[jvizzacc]

2001 SRX 700. Just cleaned the carbs and it sounds a lot better than it did before. But ... I have one of those IR thermometers, and knowing that EGT is the key to tuning, I checked the temps. I checked each cylinder pipe 1" from the jug. The temps were not consistent, matter of fact they were like 40-70 degrees diff sometimes. Shouldn't they all be the same? Am I doing this wrong?

Thanks all.

 

[maxdlx]

agai, don't worry about temps until after you have it jetted poperly from plug and piston checks. I have had my egt before be 100 degres off and then be 30 the other way. Be chaper to not worry abou temps ntil after you get it jetted. Maxdlx

 

[mbarryracing]

If your using an IR thermometer, your wasting your time. Surface temps don't give you real indication of true exhaust stream temp out of your exhaust port. The different shapes & paint thickness, etc of the different header pipes skew that.

If you are intended on monitoring and tuning using EGT's, buy probes and a display. Your better off tuning with piston wash and plug readings otherwise...

 

[jvizzacc]

Piston check? How do you check the pistons without removing the heads?

 

[maxdlx]

you get a little light and look down the spark plug hole witht he piston at bdc. Maxdlx

 

[yammiman]

Just as stated above, tuning to an EGT is a recipe for burnt pistons - tune to plugs and piston wash and then hook up the EGT to see where the temps are!!

 

[jvizzacc]

OK. So I look into the cylinder. What am I looking for?

 

[fleet man]

scroll down on this page . there are some examples there.