I recently read that the gen 1 will run better on a low octane pump fuel (say 89-91) rather than 92-95. Wondered what others are filling up with and why?
Yep, you've rumbled me Mike!Thanks for pointing out the differences in UK vs US ratings.I've always gone for the higher octane rating at pumps in the UK.A bike shop I used to work at used to recommend Shell V-Power, and advised that Yams from this period run better on it. I always thought I noticed the difference on my previous thous, but can't really tell with this one at the mo.
Quote from: nick crisp on 20 August 2013, 07:07:41 amYep, you've rumbled me Mike!Thanks for pointing out the differences in UK vs US ratings.I've always gone for the higher octane rating at pumps in the UK.A bike shop I used to work at used to recommend Shell V-Power, and advised that Yams from this period run better on it. I always thought I noticed the difference on my previous thous, but can't really tell with this one at the mo.My Gen 2 runs much better on the Shell V Power. "Almost" eliminates the crappy standard fuelling (mines a '10 plate with the newer ECU aswell). Also gives better fuel economy for some reason
Higher octane means more bang per amount of fuel used, hence better throttle response and fuel economy.
Run outta gogo juice and dragged some shit thru carbs the other day so when that happens i always stick a tank of high octane in and thrash the dogs off it and it sorts it. First time it happend on the thou and it made a noticeable difference on the throttle low to high.
How on earth is having your timing out going to feel better???!
Tests on a Dyno would be interesting so as to quash the theory over reality situation.
I had a Mitsubishi Lancer 1990 1.5 Carb and Shell V Power 98RON was without any doubt producing better power and far better fuel economy over 95 & 92RON.
I'm inclined to think there are 2 arguments here.1) Is a higher octane petrol going to offer discernible benefits in engine performance and / or fuel economy to a carbureted Fazer 1000?2) Are the additives in a premium petrol such as Shell V-Power going to offer discernible benefits in engine performance and / or fuel economy to a carbureted Fazer 1000?My personal opinion is;1) No - The engine was not designed to nor has the ability to make use of higher octane fuel.2) Quite possibly - If the additives clean up deposits that have built up in the jets and other areas of the fuel system that have formed over time.I'd argue that folks who report an improvement in performance / fuel economy from using V-Power are more likely to be seeing this through the effect of the additives than the higher octane rating.
Much more likely to be to do with cleaning additives, anti-knock additives etc. I still do believe I noticed an improvement on stock Fazers, less glitchiness, and I think the sheer numbers of people reporting the same bears this out.
May I throw a couple of extra complications into the mix, as it were? The Fazer 1000 gen 1 was set up apparently to run on quite poor quality fuel as stock, and hence the fluffing at low revs they all seem to have.