Curious to know if the cush rubbers in the sprocket carrier have turned to bricks. Seems a long shot, but if they are solid it would accentuate the sound as the backlash in the gears is taken up.
Maybe worth to update the text in Fitting a Motty AFR Tuner with this info and new solution idea?I expect you'll find that, like my Tornado, it runs rich below 6000 rpm, but spot-on above. A legacy of its racing heritage. The upside of running rich at low revs is that it keeps the engine a little cooler. The downside, on the road, is that a lot of time is spent at low revs, when you expect to get better mileage, and don't.
It can be fixed. I did it by installing a Motty AFR Tuner, sadly no longer available. If I was to do it again, now, I would be logging AFR/throttle position/ gear and speed, and carefully modifying the map until it was much closer to 13:1 throughout the used range.
Actually I'd suggest to:What would you like me to add?
Email it to me mate. Saves me the effort if you have already done it. Just keep it really simple. No smarty pants html editors that place unnecessary rubbish. gedit is smart enough.Actually I'd suggest to:
1) change the current page title and menu from "Why Install an AFR Tuner?" & "How to fit an AFR Tuner" to "How to improve fuel consumption"
2) move point 2 up to top of page
3) create a new "Historic Archive" top level menu item
3) move all references to AFR Tuner under this new section because its no longer applicable
Does that make sense?
I could send you a revised html file with above changes
To be expected on a vehicle that hasn't moved in a while. Contacts continually oxidize, but because they generally move through vibration, the oxide is constantly worn away. When they don't move, the oxide builds up and forms a higher resistance joint. When they are eventually called on to do their job, the current flow exacerbates the situation, heating the joint and making the oxide grow faster, to the point that the connection is lost. Simply unplugging and re-plugging wipes the oxide off, restoring the connection.Dry connection on some of the pins?