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cant get the kh250 started
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180kid
5th gear


Joined: 09 Oct 2007
Posts: 981


Location: a Shed in Blackpool

PostPosted: Wed Aug 26, 2009 10:00 pm    Post subject: Reply with quote

banjodeano wrote:
Thanks 180, i had tried moving the plate about, but it didnt make any difference..one other thing about the battery draining quick, i noticed that when the engine cut off switch was tuned to "off". the neural light went very very dim...


perhaps thats where your short out' is, then?,.

does look like the bike was stood outside    for how long?, all will be corroded ?,...
you need to clean all connections up,
more info req,

new ht leads and caps etc, everthing will be fcuked,

coming on good though,  


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banjodeano
2nd gear


Joined: 15 Jul 2009
Posts: 51


Location: Rotherham, yorkshire

PostPosted: Wed Aug 26, 2009 10:15 pm    Post subject: Reply with quote

Thanks for the tip Bubba, all advise is greatly appreciated... i have been talking to Wolfman about the problem, it seems to be loosing charge very quickly.. withinn minutes even,  Wolfman has a better understanding of the problem than me, we are not sure but it may be an electronic ignition fault, its all rocket science to me tho  
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The Wolfman
5th gear


Joined: 24 Oct 2007
Posts: 820


Location: South, North and East Yorkshire, It's a big place!

PostPosted: Thu Aug 27, 2009 9:58 am    Post subject: Reply with quote

The short on the 12v is definitely caused by the boyer, we have disconnected and eliminated everything else, the question is why?

When we disconnect the 12v feed (yellow) into the boyer, the short on the 12v supply disappears, reconnect it and the voltage is killed again.

If we disconnect each of the coils in turn, then voltage returns per disconnection until the last coil then 12v is fully restored.
when we reconnect the coils again in turn the voltage falls accordingly with each reconnection, the order of discon/reconnection does not matter.

No problemo, definitely the Boyer.

But... Deano has since sourced and fitted a new Boyer. NOW I'm struggling, have we got two units with the same mysterious fault?

Email sent to Boyer Technical and I'm waiting a reply.

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banjodeano
2nd gear


Joined: 15 Jul 2009
Posts: 51


Location: Rotherham, yorkshire

PostPosted: Thu Aug 27, 2009 10:24 am    Post subject: Reply with quote

Nice work Wolfman....
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ThreePipesSmokin
1st gear


Joined: 09 Nov 2007
Posts: 42


Location: Tampa Bay Florida

PostPosted: Thu Aug 27, 2009 4:50 pm    Post subject: Reply with quote

banjodeano wrote:
... fitted engine without exhausts etc just to try, it has the downpipes fitted from the engine though, and though i would see what it sounded like...

Be careful, I heard 2-strokes can break rings when running with no back pressure.
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bubba2
2nd gear


Joined: 03 May 2009
Posts: 97


Location: Dorset

PostPosted: Sat Aug 29, 2009 3:49 pm    Post subject: Reply with quote

A mate of mine says with boyer s on a british bikes !! you should get a spark when you turn the ingnition on !! not sure about jap stuff but he says send it back to the factory for testing and they'll probley send you a new one free of charge ! put a dyna on a z1r i had. fryed a coil then holed a £100 cosworth piston went back to points ..
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The Wolfman
5th gear


Joined: 24 Oct 2007
Posts: 820


Location: South, North and East Yorkshire, It's a big place!

PostPosted: Mon Aug 31, 2009 11:50 am    Post subject: Reply with quote

Yes they should all spark when the iggy is switched on, in practice it doesn't always happen, and it's not a problem just a design oditty that the marketing dept choose to call a feature.

Having said that, on a points setup you can sometimes get a spark on one plug when you switch the ignition off.

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The Wolfman
5th gear


Joined: 24 Oct 2007
Posts: 820


Location: South, North and East Yorkshire, It's a big place!

PostPosted: Tue Sep 01, 2009 7:44 am    Post subject: Reply with quote

Right Deano, we had a response from Boyer, not quite what I expected...

They reckon that when running 4a could be about right!!??**##? fk me that's a lot.

But when standing there should be negligable current drawn.

I think a trip to yours is gonna be on the cards, but before I do, I'll make some checks on my own bike.

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simonh
tankin it !!!!


Joined: 25 Oct 2007
Posts: 1320


Location: durham, england

PostPosted: Tue Sep 01, 2009 9:36 am    Post subject: Reply with quote

jesus no wonder you need a good battery

how about running a dual battery option, one in the tail as well
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kas750
5th gear


Joined: 26 Dec 2007
Posts: 836


Location: chorley

PostPosted: Tue Sep 01, 2009 6:33 pm    Post subject: Reply with quote

told ya boyers r wank!!!  


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