Naaa .. it's an after-market can I fitted myself and it does not quite seal on the engine-side ... there's a small visible gap between the pipe and the can ... It's not intentional ... except I intentionally left it that way ...
It sucks in air with oxygen which causes any unburnt fuel in the hot can to detonate ...
It doesn't seem to affect the performance .. the bike performs better with the can than with the standard pipe ... it just might be better again if I sealed it .. but hey, I never use all the performance the bike already has ...
"So if you meet me, have some sympathy, have some courtesy, have some taste ..."
91 is apparently very dirty (was told that all the crap after flushing the pipes at the oil refinery goes into the 91 tank) and leaves more carbon residue on the insides of the engine than does 95 or 98. I don't feel too much difference in performance or economy (maybe a little), but if only for the fact that the insides of the engine will be cleaner, I use 95 or 98.
Although most if not all modern bikes run on 91, that is the minimum octane fuel recommended (as some countries have lower octance fuel).
Yes it does indeed...
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Your beliefs don't make you a better person, your behaviour does.
Yeah - before the aftermarket can .. has bugger all to do with the fact that the can does not seal onto the pipe ..
What ?? It's had several warrants from VTNZ since I fitted the can ...btw, your bike is not warrantable... VIRM 11-1 item 6.
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Naaa .. I went and looked ... it's fine ... a decibel check would show it is under - even when it is burbling on the over-run ... which it would never be checked at ...
"So if you meet me, have some sympathy, have some courtesy, have some taste ..."
I emphasise minimum as in 'NOT to go below 91'. There are lower octane fuels used in other parts of the world, you see, and the motorcycle manufacturers state "use 91" so that there is no confusion as to whether or not lower octane fuels are allowed... I don't think a lot of modern engines would handle 89 or 88 octane well, for example...
You read my underlining of the word minimum to mean that there is a scale of benefits, whereas I meant differently... I said so myself that I don't feel much difference between 91 and 95 or 98, but if using the higher octane does not leave as much carbon deposits as 91, then I am willing to pay the difference in price and use 95 or 98. (Was shown the differing real-world results by a motorcycle mechanic.)
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Your beliefs don't make you a better person, your behaviour does.
Do you realise how many holes there could be if people would just take the time to take the dirt out of them?
There are a billion factors that determine the optimal fuel rating for an engine... Compression is one factor but combustion chamber design, emission gear, ignition advance etc etc... You name it...
Vickis wee car runs OK on 91 but lordy lordy what a difference 95 makes... The mechanic we use stressed to her DO NOT run it on anything less than 95 but its just this particular model. Another car may well be fine...
Run 95.... Pretty most owners I have talked to use it on these wonderful things
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