Starter relay

Paul Marx

Paul Marx

Hero member
Location
France
The subject has certainly occured before, somewhere!
I have a track bike, with no starter. I'm often alone at events so finding a pusher is not always easy, particularly as that 500 based bike gets very hot very quickly so needs warming up, switching off and then another push to take out on the track.
The mechanical side of putting the starter on isn't a problem, neither is the wiring. However, what about the relay. Are there any particular specs for that relay?

Thanks
Paul
 
The Bosch Laverda starter solenoids, are not realy "starter solenoids's" at all, they are just 75amp relays, and only just about up to the job.I fitted a solenoid for a Rover 800 on to TOG many years ago, much greater starting current capability and about a fiver, plus you can wire all sorts of stuff to the various spare terminals, such as a direct feed from the battery to the ignition, when cranking only,(12v for staring 9v for running) and permantly on and permantly off items, handy for the rev counter on a  race bike (oh sorry I forgot its not high tech modern stuff is it, just an old clunker) plus they have proper bolt on battery cable lugs (with nuts and washers) instead of the 30 amp spade terminals, so wireing an external battery (as Bob Dixon showed recently) would be  very easy.
CLEM
 
Hi Paul,
I use a spare battery and jump leads connected directly to the starter motor when in prep mode.
Normal track events I use a remote starter on the back wheel ,controlled by a foot switch.

Andy
 
I use a Pattern generic Kawasaki one, its simple, cheap and I can buy a new one for ?10 .

Its listed for a ZR750,
http://www.mandp.co.uk/productinfo.aspx?catref=570888&tier1url=Spares&tier2url=Starter-Relays&tier3url=Economy

570888.jpg

 
Paul , I fitted a Honda Hornet relay, superb quality and usually about ?15 on ebay. They have an intergral fuse which is a nice feature

Relay.jpg
 
Look at these links

http://www.vintagecarparts.co.uk/en/842~starter+switch-details/

http://www.vintagecarparts.co.uk/en/list+electrical~switch~start/

This is for a "Starter switch"  On the old race cars we sometimes use these switches instead of a relay, it is designed to take "Full" current and saves the weight of a relay etc,  Just wire it next to your battery etc and hey presto,  I will use these on mine!

Julian
 
Am I wrong in thinking the early SFC 750 had something like that? I saw friend's replica getting started with a finger in the side-cover left side...
 
Thanks for all the answers. The simplest would be that I go to the local bike breakers and pick up a relay that I can suitably fix on the bike somewhere.
Lothar, early SFCs don't have a key, the left hand side panel cutaway just allows to "plug in".

Ciao
Paul
 
julian said:
Look at these links

http://www.vintagecarparts.co.uk/en/842~starter+switch-details/

http://www.vintagecarparts.co.uk/en/list+electrical~switch~start/

This is for a "Starter switch"  On the old race cars we sometimes use these switches instead of a relay, it is designed to take "Full" current and saves the weight of a relay etc,  Just wire it next to your battery etc and hey presto,  I will use these on mine!

Julian
Click to expand...

They're nice items Julian, except I can think of a few occassions when I've stalled a bike at low speed in gear . The ability to whip the clutch in , press the starter and give it a bit of gas to get going again before the bike has even coasted to a halt can save a lot of faffing about. With the push button system in your link you'd have to stop the bike, select neutral and then take a hand off the bars to start it again.
Paul's bike is a racer with a tall first gear and I reckon he'll have to deal with the scenario outlined above. An old vintage style starter like that would be a pain in the arse on any bike but especially a race bike , which is a shame because I like the simplicity of it.
Bob
 
Kawa relay on my Jota.

The relay is cylindrical, the rectangular block is its rubber mount. I quickly made the alu horse-shoe to mount the whole thing. HTH, P.
kawa%20starter%20relay.jpg
 
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