Baffle in vs out MPG

Originally Posted by neio79

I have always ran my bike with the baffle out , and had it serviced once a year properly by the dealer. not had anything back from them to tell me the engine is looking a bit worn etc. even after last years big 15K er and the shim check. the shims were well in limits

Don't forget that I'm running with no snorkel too.

That's probably why the bike sounded half decent with the baffle in. Otherwise I wouldn't of gone out on it, I'd of been too busy hanging my head in shame. At least I had induction roar!

Originally Posted by Baph

Whoever it was that commented on my can outside Pete's Eats (neo79?), you really need to hear them with the baffle out

That was me.

I thank you for posting this mpg info. BUT I'm sorry it's still subjective. You need hard figures and you need to do it for more than one tankful. I know that there's bugger all chance of that happening (certainly not with the baffle in) but without doing that the results are pretty meaningless.

Let me illustrate

Here's the start of my records for the SV (yes I'm a sad statto type)

Date Cost PPL Litres Gallons Milage Trip MPG trip MPG cum
.
05 April 2007 £10.80 89.9 12.01 2.70 4021 9 na na
06 April 2007 £8.18 90.9 9 2.02 4125 104 51.47 51.47
06 April 2007 £9.87 93.9 10.51 2.36 4229 104 44.07 47.48
07 April 2007 £7.56 93.9 8.05 1.81 4330 101 55.88 49.94
09 April 2007 £10.33 93.9 11 2.47 4451 120.8 48.99 49.67
13 April 2007 £11.91 94.9 12.55 2.82 4576 125.5 44.36 48.37
15 April 2007 £5.98 94.9 6.3 1.41 4636 60 42.42 47.71
15 April 2007 £8.83 92.9 9.5 2.13 4749 113 52.98 48.46
18 April 2007 £12.81 94.9 12.81 2.88 4885 136 47.29 48.27
21 April 2007 £10.79 92.9 11.61 2.61 5011 126 48.34 48.28
21 April 2007 £7.24 92.9 7.79 1.75 5108 97 55.46 48.84
21 April 2007 £12.64 91.9 13.75 3.09 5266 158 51.18 49.13
29 April 2007 £9.89 92.9 10.65 2.39 5385 119 49.77 49.18

The trip MPG varies from a low of 42 to a high of 55. Yes the milage was recorded over different routes and some enforced different speeds but I think my point is still valid.

The one thing the above does tell me very accurately is what my average mpg is.

Now if\when I change\remove snorkle and or change air filter then I'll record that in there, keep recording numbers and looking at the average for the new setup compared to old I should be able to give a truer idea of the effect.

See, that's exactly why I did the same run, same roads, same bike, same rider.

Yes, you could argue ambient temperature (cold day vs warmer day) had an effect, but hell, the baffle is staying out!!

I'm afraid one run each way even with same road, rider, speed isn't enough. You have to repeat and average. It's not like a piece of code where you can run it and record the time it takes to execute and say it's runs in xyz. But yes I accept the baffle is likely to stay snug under you seat for at least another three months

[the_lone_wolf]

Originally Posted by 2mths

I'm afraid one run each way even with same road, rider, speed isn't enough. You have to repeat and average. It's not like a piece of code where you can run it and record the time it takes to execute and say it's runs in xyz.

this is turning into another maths thread...

Originally Posted by the_lone_wolf

this is turning into another maths thread...

Please don't lone_wolf

when the light flashes just fill it back up, THE END.

Originally Posted by kwak zzr

when the light flashes just fill it back up, THE END.

It's thinking like that which ended with me leaving Ponderosa, knowing the next planned fuel stop wasn't for around 50-60miles. 10miles from Ponderosa the light started flashing. Oh balls!

ooopppsss my thou is rubbish on fuel.

Originally Posted by kwak zzr

ooopppsss my thou is rubbish on fuel.

That doesn't supprise me I can't imagine many 1000cc bikes are good. That's why I bought a 650 (and I thought that was pushing the boat out a bit) and damn glad I did too