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what starter motors turn clockwise? (kart starter)
will121 - 11/7/13 at 08:08 AM

I'm wanting to make a kart starter for my 100cc kart but need a small ish starter motor that turns clockwise, have seen one made with a oldish Toyota one so was thinking of may be a yaris? Is there any others?
Also will need to be open ended

[Edited on 11/7/13 by will121]




[Edited on 11/7/13 by will121]

dhutch - 11/7/13 at 08:51 AM

Some of the honda engines are 'backwards' arnt they?

JeffJeffers - 11/7/13 at 09:20 AM

Can't you just swap the earth and live around and make it go the other way.

will121 - 11/7/13 at 10:12 AM

quote:
Originally posted by JeffJeffers
Can't you just swap the earth and live around and make it go the other way.



I thought that but tried it on a spare ford cross flow starter and rotated same way what ever way I had it connected

britishtrident - 11/7/13 at 10:29 AM

Early 90s Honda Accord 2 litre or Rover 618 620 (Honda engine)) or 623 is likely to the most powerful you will easily find

Slimy38 - 11/7/13 at 10:48 AM

quote:
Originally posted by will121
quote:
Originally posted by JeffJeffers
Can't you just swap the earth and live around and make it go the other way.



I thought that but tried it on a spare ford cross flow starter and rotated same way what ever way I had it connected


I think even if it could spin the other way, the clutch and/or engagement mechanism wouldn't work.

rusty nuts - 11/7/13 at 08:41 PM

quote:
Originally posted by Slimy38
quote:
Originally posted by will121
quote:
Originally posted by JeffJeffers
Can't you just swap the earth and live around and make it go the other way.



I thought that but tried it on a spare ford cross flow starter and rotated same way what ever way I had it connected


I think even if it could spin the other way, the clutch and/or engagement mechanism wouldn't work.



But a front wheel drive Triumph 1300 starter would .
Changing polarity will not make any difference , ISTR it depends on how the motor is wound internally which way it rotates and obviously the bendix would have to be correct for the direction of rotation

britishtrident - 11/7/13 at 09:07 PM

Starter motors are series motors, ie the armature windings are in series with the field coils. Only way to change the rotation is change the polarity of internal connection between field coils and brush gear and so as the current travels in the reverse direction through the field coil but not the armature. This is not really possible on modern starter motors which have aluminium alloy field coils.