Hayabusa Starting

[Martin B]

I'm just staggering to the end of the installation of the 1440 Hayabusa in my old Clubsport and just wondered if most Radicals with a tweaked Busa need to use 24v to start?

I have been messing around with the crank sensor to try to improve it (and I have) but it just won't spin fast enough without 24v to get the ECU to lock onto the crank signal.

Compression ratio isn't overly high at 13.3:1

I used to run 24v start with my 1224cc Kawasaki so used to the set up but just wanted to save some weight.

Or is there a better crank sensor available for the Busa (I'm using Gen2 24-1 pattern)?

Thanks

Martin

[MK3 Dan]

24V starting is the only real way forward for you. It's what everyone uses.

Get a lithium battery, don't worry about onboard charging and just charge it between events.

Realativly cheap and an easy install. Guaranteed startingevery time with no worries.

[Martin B]

Thanks Dan

[MK3 Dan]

Might not have been the reply you wanted but it is the easiest option.

No other crank sensors etc that we know of,

[Martin B]

I just wanted to make sure I wasn't doing something daft and that someone had found a better sensor.
I even offered up a ZZR sensor as that worked fine with my ecu (with a much smaller diameter 36-1 trigger wheel with much smaller teeth than the Busa ones) so the only difference with the whole injection system to when I had the ZZR engine in was the crank sensor (I ran coil on plug on the ZZR too so same ones have gone into the Busa).

Thanks