Two strokes have their fair share of issues........ Because the motor is warmed up it's more efficient at burning fuel (the whole point of a warm engine) plus the timing changes the ECU produces. Cold idle and over fueling a touch is where the problem lies...... for now. It's rainbow and unicorns. If it was a serious problem you'd start seeing a warning code on the cats and that happens every 200 revs. It's not to that level yet so don't worry too much......

 

Believe me, it takes awhile to wrap these motors around your brain. I've been at it for nine years and am still learning. The craptastic way Rover put these in the engine bay in first place still has me shaking my head, they motivate the pig but barely. The only engine I've owned that dogged up a paved hill, no nuts behind em whatsoever. They suck.

 

Oh good, so I'm not the only one losing 10+ mph going up a 40* hill at full throttle! I have to speed up to 80 for the hill just to ensure I don't slow down traffic half way up...

 

Nope, not the only one at all.

AbnMike, I've been averaging 15.25 mpg. I have a black ring on the tip of the tailpipe and if ask it to get out of its own way in a spirited manner I can kill birds behind me.

 

I'm getting about 9.8-10 mpg average, on my mostly stop and go commute. On the highway, cruising mostly 70-80 mph, I get about 13-14 mpg. No apparent issues with my engine, but it's still new to me.

2003, 80k miles. Presumably original plugs/wires/etc.

For reference, I'm driving pretty conservatively, and can usually meet or exceed most manufacture economy ratings in new cars.

 

Thanks for the metrics. I'm not trying to get 20 mpg or anything, but 130 or so miles to a tank is ridiculous for anything but a tractor, pulling a house, up a hill.

 

When my wife drives it, she gets 12mpg. When I drive it, 15mpg. She is a gas/brake/gas/brake/gas/brake driver. Also is generally more 'in town' driving whereas I'm more highway.

 

I'm definitely a coaster, too. But I can barely get 12 mph on the highway, and I cruise at 2000 -2200 rpm with only occasional kickdowns to get up mountains. I'm a smooth driver, and smooth is fast.


My wife, too, is a hurry up and brake driver. Like it's a race to a stoplight and then hard brake and then take off fast and then cruise slow.


I take off slow and cruise fast.


I have a better scanner (that I can reset adaptive values) a tested MAF and a Charged Air sensor coming in the mail...will see what happens.

 

Replaced MAF with a tested used one, and replaced the charged air intake sensor -- my LTFT came down to 2.3 - lowest I've ever seen it. Haven't had a chance to test any fuel mileage yet, but those numbers give me hope.

 

Keep hoping, it's not over yet........ that's good news by the way. Keep monitoring and posting up what your getting. I should add that Long Term Fuel Trim hasn't had enough drive cycles to be all that accurate yet.