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V50 mk2 Resto

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iansoady View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote iansoady Quote  Post ReplyReply Direct Link To This Post Posted: 21 Apr 2018 at 15:02
AFAIK they're just simple coils so little to go wrong with them. As Brian says, check resistances and make sure neither is shorting to earth.
Ian
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GC888 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GC888 Quote  Post ReplyReply Direct Link To This Post Posted: 21 Apr 2018 at 23:58
is there an output (when cranking) from the sensor?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 22 Apr 2018 at 09:51
Engine is on a bench, so cranking not possible.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote paulrob100 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Apr 2018 at 14:32
Thanks for the replies about the ignition triggers. As the engine is on the bench I just wanted to make sure that they are ok, as although it wouldn't be a difficult job with the engine in the frame, it would be easier done now if they needed changing.
 
Anyway, I have cleaned the contacts & gapped them correctly. Checked that they aren't going to earth & that they both have similar resistances  (which they do at 223 -225 ohms). My pal suggested connecting a test meter, on the resistance setting & buzzer & rotating the crank by hand. If they are working ok the meter should buzz every time the triggers fire. Hey it works !
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Post Options Post Options   Thanks (0) Thanks(0)   Quote iansoady Quote  Post ReplyReply Direct Link To This Post Posted: 22 Apr 2018 at 15:26
That 's a good idea. I tried connecting an oscilloscope app to mine but found the results meaningless.....


Ian
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Brian UK View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 22 Apr 2018 at 17:49
200 ohms or thereabout would be what I would have expected.

You could test them off the bike by connecting them to a meter and waving a magnet past them.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote paulrob100 Quote  Post ReplyReply Direct Link To This Post Posted: 26 Apr 2018 at 21:13
I am cleaning up the cylinder heads & notice that a couple of the cooling fins are slightly bent. Can they be bent back without fear of snapping them off ?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 26 Apr 2018 at 22:03
You might get away with straightening a slight bend, but how slight is slight? Cast aluminium is very brittle.

Safest thing would be to leave it.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote GC888 Quote  Post ReplyReply Direct Link To This Post Posted: 27 Apr 2018 at 14:16
Originally posted by paulrob100 paulrob100 wrote:

I am cleaning up the cylinder heads & notice that a couple of the cooling fins are slightly bent. Can they be bent back without fear of snapping them off ?

Ids the bend at the base of the fin (most likely)?  

If so they are quite weak to bend back and can crack, also the bit of the connected fin thats straight can bend the other way! 

If its in the length of the fin its less risky just difficult to do.

If you decide to go for it and one does crack it can be built up and ground off to match as a repair. 

So unless its really noticeable or already has a crack at the base of the (Meaning its not working) I would also leave it. 

May be camouflage it under a bolt on alloy plate crash protector? 

   
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