yamaha_george:
FTU,
I see in your sig you have done an air mixture mod with guage would you care to share details ?
Thanks
it's a pretty easy mod.I dident go all out and get a wide band set up,that would run $150-$200 bucks.I just wanted something that would give me a good idea of whats going on.I picked up a sun pro AFR guage on amazon for $28 shipped and a denso 1 wire o2 sensor for $25 shipped on ebay.
I Drilled a hole in the header just past the collector and welded in a o2 sensor bung,hooked up the guage,sensor and thats it.
My bike was running a little rich,I knew that befor the guage,but thats why I got it to help tune in the carbs a little better.Come to find out yesterday I have 97 YZF 600 carbs with no jet kit and they were still set to factory settings.I drilled and pop out the A/F mixture caps # 1 was at 1 1/2 # 2 & 3 were at 2 and # 4 was turned all the way in.I turned them all to 3 1/2 and now the throttle response is a million times better.It's running on the first of 3 bars on the guage rich at idle and when I rev it up,it drops back in to the happy zone of a ideal mixture.
I still havent been able to ride it to test my ram air and see how it will read under load thanks to Vortex taking there sweet ass time with my rear sprocket,but as soon as they do get it to me there will be updates in my ram air thread.
Heres a couple pics,there not the best.
