[Classic250]

I was going to say judging by the pics you are running a little lean...then I read your post, lol. I don't know what's in the X14IED but I run an O2 Optimiser on the Aprilia, which pretty much does the same thing. It's basically an inline potentiometer (adjustable resistor) that sends a 'message' to the ECU that the bike is running lean, resulting in the ECU 'correcting' the AFR. I installed it because the Shiver is famous for poor closed loop response, especially around idle and take off. Also, because it's a tropical climate here and the Aprilia runs very lean due to Euro compliance, I wanted it to run a little richer/cooler.

After I installed it, I noticed an immediate change in the bikes behavior. No choppiness/snatchiness around idle and take off, and less exhaust popping on decel. There is still some popping but that's because the exhaust has been decat-ed and I'm running aftermarket cans.

I would reckon the X14IED would be worth trying if they are the same. Judging by the pics they are not adjustable like mine, and probably have just an inline fixed voltage resistor. Might still be worth a try.

 

[Classic250]

Maybe some rubber plugs/blind grommets for the holes?

 

[Classic250]

Well just as you described Classic I've experienced the same improvements.... I'm very satisfied.

If there's just one complaint I have it would be it did affect my fuel economy. Reading all over most folks said they noticed nothing to minimal changes in MPG..... I one the other hand am experiencing a solid 10% drop in MPG. Previously I could go a little over 155 miles til empty (found out the hard way a couple of times) but now about 135 miles or so. It's not a deal breaker.

10% drop in mileage seems a little excessive. Your bike should be just running minimally richer. I don't know how much my O2 Optimiser has affected fuel consumption as there is no fuel gauge on the Aprilia. Although fuel consumption and average kilometre per litre info is available, I have never bothered to measure it. However I doubt that it has been affected by 10% because I generally ride the same distance/course when I take the bike out and haven't noticed any change in the top up amount when refueling.

 

[Classic250]

That's one of the downsides to USD forks, when a seal goes, so does all the oil - fast.