How Many Turns for the Idle Mixing Screws on KZP?

BTW, the color tune can lie to you. I adjusted until it was blue but the bike wouldn't run for SHT. I readjusted to when the first color appeared then listened for a miss. Got it right that time.
Steve

Is it just me or is something a miss here? You said it runs rich when it's cold outside? Shouldn't the opposite be true? Engines require more gas when cold, thus needing the choke circuit engaged.
And out of curiosity, are you checking the spark plugs after you take it out for a run?
The mixture screws mainly affects the pilot circuit. On a KZP the starting point should be 2 1/2 turns. I cheat and use an o2 sensor to fine tune mine. They end up at different settings but are in the general ballpark of each other.

theApehouse wrote: I cheat and use an o2 sensor to fine tune mine. .

Did you weld bangs in each pipe? That would be very smart. More details please.
I was adjusting Power Commander map on Harley with O2 sensor.

car5car wrote: Did you weld bangs in each pipe? That would be very smart. More details please.
I was adjusting Power Commander map on Harley with O2 sensor.

Yes, exactly. I had a friend install 1 on each pipe, right outta the head, maybe 8-10 inches down. It ruins the shiny mufflers and looks totally Frankenstein-ish, but I purposely left my old KZP all rode beaten and worn(like the old Blues Brothers mobile). It's a great running rebuilt machine on the inside, but you'd never know it by looking at it.
I plug a wideband sensor, one pipe at a time, and use an Innovative LM-2 to read. I love it. I can also mount the reader on the handlebars and take it out for a ride and see exactly how it does at all precentages of throttle. The trick is, IMHO, is not to get caught up on the numbers too much. If it runs great, and there's no major red flags, just let it be. And ride the heck outta that thing!

theApehouse wrote:

car5car wrote: Did you weld bangs in each pipe? That would be very smart. More details please.
I was adjusting Power Commander map on Harley with O2 sensor.

Yes, exactly. I had a friend install 1 on each pipe, right outta the head, maybe 8-10 inches down. It ruins the shiny mufflers and looks totally Frankenstein-ish, but I purposely left my old KZP all rode beaten and worn(like the old Blues Brothers mobile). It's a great running rebuilt machine on the inside, but you'd never know it by looking at it.
I plug a wideband sensor, one pipe at a time, and use an Innovative LM-2 to read. I love it. I can also mount the reader on the handlebars and take it out for a ride and see exactly how it does at all precentages of throttle. The trick is, IMHO, is not to get caught up on the numbers too much. If it runs great, and there's no major red flags, just let it be. And ride the heck outta that thing!

Super!!! You can choose perfect jets! You can drill holes in bang plugs and install some chrome covers.

Don't they usually have the BUNG after the collector?
Steve

2.5 turns open on the pilot screws is the standard starting point. Tweak them to achieve the highest idle and if the idle doesn't change when turning the screws, leave them at 2.5.

For you guys that really want to get down and dirty here is a link to a procedure created by Mr. Koolaid Kid, a former member here. members.dslextreme.com/users/storageclif...ture_on_CV_Carbs.pdf

swest wrote: Don't they usually have the BUNG after the collector?
Steve

I believe it depends on the application. If installing an o2 sensor to give constant info to an ECU or FI system then a single o2 sensor in the 'communal' exhaust stream is the way to go. I wanted to be able to read each cylinder individually, and the general rule of thumb is, as close to head as possible for most accurate readings. If mounting an o2 sensor that will stay in the exhaust at all times, the trick is to make sure it isn't in a position where it won't collect condensation on it.

Thus at the 4:00 or 8:00 position?
Steve

swest wrote: Thus at the 4:00 or 8:00 position?
Steve

As i understand it, yes. On a horizontal run 10-2 is suppose to be best spots. On a vertical section pointing down so nothing settles on tip.

I think you're right. On the bottom there's more chance of fouling the sensor.
Steve