Gas Mileage- Is your a Sipper or iz it Sooopazz, yo!!

[n4mwd]

Originally Posted by Alex

Kevin's is the only post out of hundreds that doesn't relate to a ninjette. Yell at him, not the thread. That said, this has been in the new-gen tech section for years, yet people of both generations have likely been answering it, so it probably does include data from all years. Nevertheless, the data is still pretty clear in showing that one's mileage can vary quite a bit depending on riding style with these bikes, and most people get less than the 60+ mpg that is often listed as achievable with either generation.

I have a hard time believing that the guys who have said they get less than 30 mpg are actually riding ninjettes. Maybe those are the ones with the school buses.

Mine isn't working right at the moment. Strong smell of gas when I first start it. Mileage is down to only 53 the last I checked. And the last time I filled it, it was over $4/gallon. Gotta do something about that.

[choneofakind]

Hmmm I think I might have shot my mileage in the foot...

I re-jetted to work with my intake and exhaust. 108 mains are right where it's at. Pull like a banshee at the top.

with 1 washer, it was popping, crackling, and struggling. 2 washers was just a little surging, and some crackling. 3 washers feels pretty darn good and responds really well, but the occasional stumble at high rpms with the throttle about 1/2 open. I might try a 4th washer over Easter break...

But overall, I haven't had a chance to really do any mileage calculations since I had to drain my tank and replace my petcock, but I'm guessing I'm solidly in the low-mid 50's. My style of riding the last couple days has been slightly enthusiastic since I've been off the bike since November and at the same time am testing jets... that likely also hasn't helped at all with the mileage

[n4mwd]

Why was it necessary to replace your petcock? Was it broken?

[choneofakind]

Yepp. Broken

It didn't leak out the part the fuel line attached to into the engine, but when I left it on "on" or "reserve" it would leak out of some part of it and I would get fuel running down all over the outside of the lines, and dripping down onto the left side of the engine and fairings and whatnot.

I spent a while trying to get it sealed and trying to figure out what was leaking exactly, but just gave up and bought a new one from ron ayers.

The annoying part is I just rebuilt that one last season because it used to leak from the fuel nipple when left on. After I rebuilt it, it worked perfectly. Then I accidentally thumped it on the floor one day when I set the tank down on an old tire. Ever since then, it leaks on the outside. now I get some 2x4's under the tire before I set my tank on it.

[CZroe]

It seems that a lot of the petcocks are bad. There is a nylon/teflon/plastic sealing ring that is often not a complete circle. Mine leaks too.

[choneofakind]

That's the weird thing though. I couldn't actually pinpoint one particular spot where there was gas leaking. It just showed up from the backside of where the diaphragm is in the petcock somewhere... whatever. I got a new one now that works. No more annoyances!

[n4mwd]

When the membrane goes bad, gas will leak out from two places - the vacuum line and the weep hole. The weep hole is a little hole drilled in the side of the membrane. Did you change your membrane when you rebuilt yours?

I've got something wrong with my bike in that area. After starting, there is a strong gas smell, but not before. I started to rebuild the petcock, but when I tested it, there was nothing wrong with it. Now I'm leaning toward the carbs.

Also, no matter how cold it is, it starts without the choke and will run for about 10 seconds with no additional throttle or choke. So that says there is gas getting in there some how.

[choneofakind]

No, just the diaphragm and the little rubber circle thing behind the selector knob were the only 2 parts that were dried up and cracked. Took it to the shop to have it tested, and it was fine once I got the right parts in it. It started leaking right after I bonked it on the floor. The internals of it were fine. Never got any gas out of the vacuum line of weep hole, and never out the fuel line except when there was supposed to be gas coming out.

That's why I bought a new one. Less headbanging trying to diagnose it, more riding without smelling gas.

[sendler]

66 mpgUS at 65 mph. 2009 Ninja250 with idle mixture screws tuned. Still very cold blooded. Zero Gravity Sport touring windshield might be costing me a couple mpg. My CBR250R gets 87 on the same commute.

[NDspd]

Originally Posted by sendler

66 mpgUS at 65 mph. 2009 Ninja250 with idle mixture screws tuned. Still very cold blooded. Zero Gravity Sport touring windshield might be costing me a couple mpg. My CBR250R gets 87 on the same commute.

How in the world do you manage that??? I try riding as conservatively as possible and the best I can get is 52.

[sendler]

Originally Posted by NDspd

How in the world do you manage that??? I try riding as conservatively as possible and the best I can get is 52.

Mild hypermiling in a good tuck.
.
http://www.ninjette.org/forums/showt...068#post454068

[Slono]

I have an Area P exhaust with Dynojets, #100, e-clip on the 3rd notch. My pilots are 3.5 turns out and its getting me 39.5 MPG. I don't know what I'm doing wrong.

[choneofakind]

performance parts =/= fuel economy necessarily.

If you lean your idle and mid-range a little bit (like it felt stock) that will help a ton with mileage.

[drac]

2009 box stock averaging right at 60mpg over the first 800 miles. It's odd though in the fact that it doesn't matter how I ride. Rode the last 200 miles in a tuck(with small backpack on) and was expecting/hoping for around 65..................nope 61. Riding like a wild man, winding it out, running through gears like crazy, expexting 55................nope 59. Long commute(1 hour each way) only 3 places I have to stop, riding upright, getting quickly to 6th and cruising at 60mph........you guessed it......60mpg

[Trash Can Man]

Just put my second tank in (since I got the bike) and I'm getting 66 mpg. Mixed riding, commuting to work and a ride of about 100 miles. Had the carbs rebuilt by a guy I know (uses a sonic cleaner with H2O, Dawn, and ammonia), the rest of the bike is stock.

[Francis]

I forgot my "mpg" but with my old 2010 Ninja 250r, I was getting close to 200km per gas tank.

Now with my second 2010 Ninja 250r, I'm getting close to 300km per gas tank.

Does this have to do with idling? Coz I ride pretty much the same. There's time where I would ride it hard and still get 200+ km.

[Alex]

My guess is that the fuel gauge is behaving differently on your new bike, allowing you to go further into the tank before you feel like you have to fill up.

[Old Lemon]

when i first got my bike i got 55 mpg. but i lubed the chain a couple weeks ago and idk what happened but im getting 50 mpg now.

And what type of fuel should i use? ive been using 89, should i use 91?

[etiainen]

87 works fine for these bikes.

Chain lube didn't affect your MPGs, your riding did.

[sombo]

I'm happy averaging about 47mpg atm on my Harley. I've gotten 53mpg out of her on a nice cruise that was not light to light like my daily commute.

[Old Lemon]

Originally Posted by etiainen

87 works fine for these bikes.

I will try 87 next time i fill up ty

[etiainen]

Np. It's what the owner's manual recommends anyways. No point in putting anything else in.

[pucktoplay1]

Is something seriously wrong with my bike if I can't go 100 miles on a full tank averaging 85 mph? I have an hmf slip on exhaust with my needles shimmed with three washers. I remember reading that shimming didn't do much to gas milage but I guess that was wrong

[Alex]

Are you sure you're filling the tank up all the way?

[pucktoplay1]

I usually wait until the gas starts overflowing all over my bike when I fill up so yeah...

[DaBlue1]

Originally Posted by pucktoplay1

.... I remember reading that shimming didn't do much to gas mileage but I guess that was wrong

It depends on your washer thickness. You can effectively move the needles .25 mm up to 1.5 mm. The more gas you let into the carb, the more you use (or waste). 9k rpm and above is where the bike is the richest, so expect fuel efficiency to go down riding in that range for extended periods of time.

Want to help your mpg? Lower your rpm speed by changing sprockets.

[sendler]

Originally Posted by sendler

66 mpgUS at 65 mph. 2009 Ninja250 with idle mixture screws tuned. Still very cold blooded. Zero Gravity Sport touring windshield might be costing me a couple mpg. My CBR250R gets 87 on the same commute.

Longer gearing on the CBR250R is a big improvement. My last 11 tanks in a row for my 65 mph commute have been over 93 mpgUS and the latest fill up was 101.0. Two out of the six legs were less than perfect so I can still do better.
240.0 miles/ 2.377 gallonsUS = 101.0 mpgUS

[pomartin]

interesting thred

my average is 4l/100km... about 60mpg.
when in city I`m riding around 6-7k rpm, when out 9-redline

gearing front stock, rear 43 (and it is stock... ?!?)

[lazarith]

I've filled up 5 and a half times. My first fill-up I inserted the pump all the way in and pumped until the pump stopped. I was so confused when the gauge read that it was only half full.

My first real fillup was 55.71mpg, following the break-in procedure of <= 4k rpm.
I didn't measure my second fillup.
My third fill-up was 63.29mpg, which was after I tightened and lubed the chain and had given up on the break-in. I still never go over 8.5k rpm, though.
My fourth fill-up was 65.93mpg, which was highway driving in the rain, mostly full tuck.
My fifth fill-up was 76.06mpg (150.0 miles / 1.972g)! I always drive very conservatively, but perhaps it was because I shifted at 6k and attempted to cruise at 4k rpm, except when I was cruising at 50mph. This was also mostly state highway riding with some occasional light rain (so the roads were a bit damp).

The bike is totally stock- no modifications. All mpg calculations are done in US units using the prescribed method (trip-meter + gas station receipt).

[CZroe]

Originally Posted by lazarith

I've filled up 5 and a half times. My first fill-up I inserted the pump all the way in and pumped until the pump stopped. I was so confused when the gauge read that it was only half full.

My first real fillup was 55.71mpg, following the break-in procedure of <= 4k rpm.
I didn't measure my second fillup.
My third fill-up was 63.29mpg, which was after I tightened and lubed the chain and had given up on the break-in. I still never go over 8.5k rpm, though.
My fourth fill-up was 65.93mpg, which was highway driving in the rain, mostly full tuck.
My fifth fill-up was 76.06mpg (150.0 miles / 1.972g)! I always drive very conservatively, but perhaps it was because I shifted at 6k and attempted to cruise at 4k rpm, except when I was cruising at 50mph. This was also mostly state highway riding with some occasional light rain (so the roads were a bit damp).

The bike is totally stock- no modifications. All mpg calculations are done in US units using the prescribed method (trip-meter + gas station receipt).

Update your profile!

[NJ Ninjette]

Originally Posted by Slono

I have an Area P exhaust with Dynojets, #100, e-clip on the 3rd notch. My pilots are 3.5 turns out and its getting me 39.5 MPG. I don't know what I'm doing wrong.

Hmmn, I have a TYGA full exhaust, Dynojet #98 main, #4 clip, 3 turns on pilot and my last tank was 39.5 mpg. If I really try to coax max mpg I was able to squeeze out 43.5 mpg. The bike runs pretty damn good, but I kind of miss riding it "like I stole it" and getting 50 mpg.

[Bassman]

I've documented 90% of my fill ups since I bought the bike new in September 2011. I have about 5,000 miles on it so far and average 60 mpg mixed freeway and surface streets. The bike is stock.

[kevheads]

Since I put on a full Area-P exhaust with 100 mains and 3rd notch, I've checked it twice while just riding around town and have gotten 59 mpg both times, last weekend I rode it from Peoria to Indy, all interstate the whole way going 70mph at 8500rpm's and got 52 mpg.

[broilmebk]

Originally Posted by Bassman

I've documented 90% of my fill ups since I bought the bike new in September 2011. I have about 5,000 miles on it so far and average 60 mpg mixed freeway and surface streets. The bike is stock.

What are your highway speeds like? Most of my miles are highway. I document all my fillups. I only avg like 48mpg. What's strange is I put up better mileage when I'm canyon riding

[Bassman]

Originally Posted by broilmebk

What are your highway speeds like? Most of my miles are highway. I document all my fillups. I only avg like 48mpg. What's strange is I put up better mileage when I'm canyon riding

I try to keep it at 60 mph in the slow lane on the highway and speed limit on surface streets (which is mostly 45 mph). I shift around 5k. I ride about 80%surface streets.

Just for fun, on the last tank I ran as much highway as I could (around 80%) and kept the speed around 65-70 mph. I got 50 mpg.

[menikmati]

Lowest MPG I've gotten was 52 and highest was 60. Although recently I have been doing 0-60 pulls getting on the freeway going through the first 4 gears to redline I've gotten the same average MPG of 55 as when I rode conservatively and shifted at 8k.

Will be putting on an Area P mid-high full system this weekend along with a rejet so I'll see how that affects my future fillups.

EDIT:

After an Area-P full exhaust and a rejet to 112 mains I got 58.6MPG with the same conservative riding with hard pulls to redline to get on the freeway, wut.

[thomason2wheels]

Originally Posted by kkim

At least 2 in the first few hundred miles before I shimmed the carbs. Before shimming, I would rev to 4-6K before gradually letting out the clutch being ever vigilant if it was going to stall or not. I could see this catching a complete novice by surprise and end up dropping the bike if there was a turn immediately after a stop sign.

Been there done that...even on a bike with really good fuel ejaculation under some circumstances stalling can be an issue. I had it happen on hot day leaving work with a cold engine. I started the bike pulled out for the hundred yard run to stop sign at the main road, stopped, looked both ways and pulled out for the 90 degree left turn. Midway rthru the turn the engine stalled with no warning and i was down. I figure what happened was the engine had just reached the temperature where the cold engine enrichment is turned off. Rolling into the throttle created a lean condition a n d it stalled...lesson learned.

[menikmati]

Originally Posted by thomason2wheels

Been there done that...even on a bike with really good fuel ejaculation under some circumstances stalling can be an issue. I had it happen on hot day leaving work with a cold engine. I started the bike pulled out for the hundred yard run to stop sign at the main road, stopped, looked both ways and pulled out for the 90 degree left turn. Midway rthru the turn the engine stalled with no warning and i was down. I figure what happened was the engine had just reached the temperature where the cold engine enrichment is turned off. Rolling into the throttle created a lean condition a n d it stalled...lesson learned.

Fuel ejaculation = awwww yeahhhhhh.

[Jiggles]

Originally Posted by thomason2wheels

Been there done that...even on a bike with really good fuel ejaculation under some circumstances stalling can be an issue. I had it happen on hot day leaving work with a cold engine. I started the bike pulled out for the hundred yard run to stop sign at the main road, stopped, looked both ways and pulled out for the 90 degree left turn. Midway rthru the turn the engine stalled with no warning and i was down. I figure what happened was the engine had just reached the temperature where the cold engine enrichment is turned off. Rolling into the throttle created a lean condition a n d it stalled...lesson learned.

Oh my girl is great with fuel ejaculation, damn straight she is a squirter. First I choke a bitch and get her primed and pumped and like that we're off. No less than half a second later I've got her moaning groaning and growling while her body quivers at my sensitive touch gently caressing her her luscious inputs. I give her a squeeze and a twist and her body shudders forward as her groans increase in intensity.

Even though I'm on top of her I can barely contain her excitement and together we embark on a journey of ecstatic ecstasy. The longer I ride her the louder she gets. She's screaming at the top of her lungs and our neighbors are coming out of their houses to investigate but we don't care, let them watch this beautiful act. Her gears are grinding, wet and ready, her heart is racing and with a final twist and a push she achieves sexual transcendence and the earth shattering moan she let out brought a tear to my eye.

Slowly and gently I bring her back down from her lofty euphoria and we enter back into reality. Everyone is looking, she is still moaning and we both feel overwhelming satisfaction and a slight amount of embarrasement.




































And that is the first time I

[Boom King]

Premature fuel ejaculation huh? Gotta suck