Just a by the way.
I normally start the bike straight up and it can take a few turns like 6 or 8
But I noticed that if I leave ignition on for say a few seconds till fuel pump stops it starts quicker.
My imagination or is this the way I should be starting the bike.?? Cheers,
Pete
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I dunno Pete, I always let mine do the little system check thingy with the guages before I start it and it always starts really quickly. Mabey yours is just suffering massive power drain from all those glowstick thingys and sparkely bits <i></i>
i wait and hear the 3 secs the pump purrs itself up then start never a prob. <i></i>
Me too.
Don't forget to let it gurgle away at between 2 and 3 thousand revs for a little while before blast off. This allows the oil to circulate.
Rgds BUSGO
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I'm not using it anyway!<i></i>
Makes sense, fuel delivery line pressurises and battery gets a couple of secs to recover. <i></i>
same as the others - always wait till the pump has finished & system check done - starts perrrrrrfect - any time I try & rush it take a few turns "Busa riders always count in three's.... 100, 200, 300"
<i></i>
Waiting just allows the fuel pump to prime the fuel pressure to operating level (around 70psi) because no fuel pressure = no atomisation and no atomisation = busa that runs like a hairy goat. (I was a mechanic and EFI specialist in my past life)
Steve. <i></i>
Regulator pressure is 43psi in the case of the busa, according to the manual. <i></i>
Doesn't the Busa run a higher starting pressure due to no vacuum behind the regulator diaphram on start up? (I'm assuming bike injection is the same as most EFI systems) then once started the vacuum load in the regulator governs fuel pressure according to load? Please accept my apologies if I'm wrong on this one but in my experience almost all EFI systems share exactly the same fundamentals.
Maybe the resident Busa gurus can set me straight.
Cheers Steve. <i></i>
Don't apologise Steve, its all about sharing and learning. This is what i've plagerised from the manual:- 99 and 00 models have an external pump/regulator, there is a vacuum line connected from the throttle bodies to a diaphram on top of the regulator. This only serves to reduce fuel pressure as there will only be vacuum or atmosphere in the throttle bodies(non turbo of course) and therefore maintain a pressure differential of 43psi. In 01 they dropped the pump in the tank and forgot about compensation. <i></i>
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