Gas Milage & Octane .... simple poll & question

[DuciD03]

May 13 08

Gentlemen & Chicks:

I have a M800ie; no engine modifications; all servicing was done up to 12 k miles; I officially have 20 k on the bike now; I'm getting, around the city, about 95 miles to about 11 litres (3 US Gal).  This doesn't sound very efficient.  Heavy on the throttle at times; I do like to leave the cagers behind at a light ....  

I'm intrested to hear others gas milage (guess thats a poll)

and if anyone can give suggestions on what may be causing such high gas consumption.

Cheers DuciD  [moto]
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Update note; May 14 08:

Thanks for the feedback so far; yes there is many factors the effect MPG performance; but generally it already looks like theres a range of between 35-45 MPG.  Milage is a good starting point to identify the mechanical health of an engine.  Below someone identified that a valve adjustment can make a significant difference in milage.  Keep em coming, I'll try to do a summary in a week or 2.

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Duc Painter; thanks for setting up the poll; ... but how does this work? ....lol  Some detail about the bike, riding conditions etc is a factor; so a poll misses some of that detail.  Post on ducsters.

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June 2 08

ok ...  been doing experiments with Octanes; similar but different rides so there's a difference in consistency; I ran the 94 octane forever but seem to be getting better milage form the 89 octane .... I know I'm not getting optimum milage and have purchased belts to replace then I'll do a valve adjustment.

I'm liking the 89 compromise;

also I'm pretty sure I'm noticing some gas stations have water in there gas ... hummmm!

This is a general summary below; could be affected by many factors.

March April 94 - 95 -105 Miles to 11-12 Litres
May 87 - 105 Miles to 11.5
May 89 - 113 miles to 12 Litre's
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June 3 08

New belts on; just walked in from the garage ... (no problem-o!   )

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November 06 08

Thanks all for contributing  

So after some tweeks I beleive I'm good for about max about 130 miles to a tank, highway riding which gets me into 43 miles per gallon on the 89 octane.  Initially; i was getting crappy milage due to around town rides and some tuniing; I'm amazed at how much of a difference some parts cam make like a new did gold link X ring chain, V300 oil and warmer,  longer highway rides.  

Also another observation, I'v experimented with laying on the tank and tucking, this is the most aerodynamic profile i can get and actually perfer this on the highway provided theres not alot of traffic.  Once I sit up it shaves off 5 miles an hour on the speedo.

I'll keep the poll open and chime in for future refrence all.  

Now I'v got her off the road for the winter .... and in the process of winterizing for storage and next season.   I'll also be looking at the valves over the winter.

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Oct 20 09

I'm still experimenting; I use 89 regularly; 91 and occasionally 87 ... 89 seems to be the happy medium ...

2 other s2r 800's I'v been using (dont ask ...) 89 seems to be the happy medium; but i cant help but think / feel that the 87 is cleaner burning, less stoot; and has slightly more pep...

... also what gas is most stable for storage?  



Cheers DD  [moto]

[herm]

06 s2r1k
120 - 125 miles per tank (the smaller plastic one)

i pushed it out past 135 once, jonesing for a gas station

[Speeddog]

42-43 mpg with my S4, running 89 octane.
I've gone 160 miles on a tank.

[He Man]

I haven't gotten a chance to bring her out and empty her on a full day of twisties yet, but city 70miles to the tank. ive been shutting my bike of at lights that last longer than ~10 seconds, and my MPG has shot up dramaticly, my last fill up was only 1.6gallons on 57 miles (I thought i was close to 2.5gals). Note: I do idle alot becasue i ride in NYC. Also i have the plastic 3gallon tank, which holds less fluid than i can at any given momment.

However, i have VERY loose valve guides, and someone said that their MPG shot up from 30mpg-40mpg just from getting that fix. so im hoping thats the case.

[Speeddog]

Probably would be good if everybody listed what year and model of Monster they have, and to make it easy to compare, how many miles per gallon they're getting.

While it's important info, miles per tank is influenced by so many things that it's not so helpful for comparison.

[NAKID]

06 S2R1k Vented airbox, BoomTube exhaust with baffles, 43T rear sprocket, HARD city riding, 89 octane fuel 40-42 miles to the gallon...

[Hank]

'00 monster 750  Termi high mounts, 14T front sprocket, ride mixed city and highway with occasionally spirited riding
about 45 mpg

[Xiphias]

I get 40 to 50 mpg. 40 in commuting/heavy traffic and 50 on week-end riding

[Slide Panda]

Heavy on the throttal at times; I do like to leave the cagers behind at a light .... 

Ok, so it's mostly city riding and you're heavy on the throttle - That's a combination for low mileage.  Stop and go riding, lots of time idling per mile and fast starts is going to consume more gas than pretty much any other situation.  So, asking what other people are getting probably won't be as illuminating  as you'd hope since you're getting numbers for that riders style, and not yours.

[ducpainter]

96 M900-Drilled airbox-DP lowmounts-Dynojet stage 2

45mpg.

No traffic where I live, and my riding is usually steady throttle twisties...I ride as in 'the pace'.

[A.duc.H.duc.]

I've got a '97 750 cored pipes, lidless airbox, up 2 on the rear sprocket, 87 octane, ride it like I stole it. Still get over 40mpg.

Justin

[Sgt_H]

99 750, Combination city and hi way, 43-44 MPG average.

[johnster]

42-43 mpg with my S4.

My '01 S4 gets maybe 40-42'ish, depending on what kind of riding I'm doing....The DP cams + full Termi system definitely don't help, but the compromise is well worth it to say the least.... 

-It's hard to say really, because I usually just pull over and fill up every 100 miles or so, just in case I decide to get lost on purpose, which I've been known to do!!   [moto]

[Mduc]

I have an S2R1K and do over 100 miles per tank. I never had the yellow light come on as I fill it up as soon as I leave cause I dont want to deal with running out of gas. I guess I should run it down one of these days just to see how far it will go.

[Juan]

2005 M1k, I am doing like 40/45 m/g short freeway ride + city streets.. on w-ends for nice rides I've gone as much as 120 for the tank, I know there is still some gas in it but I usually fill it up and don't take the risk of running out of gas.