mkblade
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| posted on 22/5/05 at 03:49 PM |
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fireblade regulater/rectifer
hi all
went to start up mk mk blade to day started ok after a while i saw smoke coming from the above unit . turned off everything .started it up again after
a couple of hours but after its been running a 2-3 mins and you try to rev the engine it just cuts out . started again and will idle fine until you
rev again then dies.
i unpluged this unit and started again it will run and rev ok ,i thought this was for charging the battery/alternator any suggestions ??
many thanks
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Hellfire
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| posted on 22/5/05 at 04:31 PM |
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Again - that is a popular flaw on the blade... it has to be mounted somewhere very cool. They can be upgraded with a better heatsink on (cant recall
from where). I'm sure someone on here can recall though. 
It does sound like a rectifier problem tho' 
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colibriman
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| posted on 22/5/05 at 05:49 PM |
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Did i read that right that you ran it without the regulator connected......I thought this was pretty dodgy etc as it doesn't cap the
voltage....
correct me if I'm talking poo.........
need a bike engine? - www.colibriman.com
SVA ready Mk Indyblade possibly for sale.....if the offers good...!
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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mookaloid
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| posted on 22/5/05 at 06:11 PM |
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quote:
Originally posted by colibriman
Did i read that right that you ran it without the regulator connected......I thought this was pretty dodgy etc as it doesn't cap the
voltage....
correct me if I'm talking poo.........
I believe you quite right - it cooks the battery, at least it did on my mates XJ600 when his rectifier gave up
Cheers
Mark
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Bob C
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| posted on 22/5/05 at 06:30 PM |
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Uhhh? if you unplug the rect/reg you are just running off the battery - which will eventually go flat....
I can believe that in some cases there may be 2 connections (one to alternator & another to 12V) but I can't see why disconnecting either
one or both should give a problem.
Bob
PS Physically disconnecting while the engine is running could possibly cause a problem as the inductance of the alternator can generate a very high
voltage transient, but I would expect the circuit to be engineered to survive this too.
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mkblade
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| posted on 22/5/05 at 09:36 PM |
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hi guys
i only had it running for a couple of mins with it off ,it will rev and idle fine with it off..
but when i plug it back in after 2 mins try to rev the engine just cuts out ,i did see a modified regulator on ebay for £65.00 plus postage is this
about right .??
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david cromie
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| posted on 22/5/05 at 11:08 PM |
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regulator
had same problem. Mounted a thick heatsing and fitted a computer fan to blow cool air, seems to have cured the problem. I also replaced the blade one
with a heavy duty one.
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ChrisGamlin
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| posted on 23/5/05 at 08:43 AM |
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An old Athlon CPU heatsink and fan did the trick on my standard reg / rec for best part of 3 years. I was going to also mount it on a decent thickness
plate but never got round to it in the end as the heatsink was doing the job fine.
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jimgiblett
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| posted on 23/5/05 at 09:47 AM |
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Kit Car workshop do an upgraded one.
link here
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David Jenkins
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| posted on 23/5/05 at 09:53 AM |
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I would mount the unit on a proper finned heatsink, like the ones that Maplins sell. If you slap some heatsink compound between the unit and the
heatsink it will also make a huge difference. Both are quite cheap (a few Pounds max).
David
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ChrisGamlin
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| posted on 23/5/05 at 10:17 AM |
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Yup, mine had some nice Arctic Silver CPU compound between the flat metal surface and the heatsink from the days when I used to overclock my old PC
and it needed all the help it could get 
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TimC
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| posted on 23/5/05 at 11:23 AM |
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Can you now help with CBR1000 problem?
Similar issue - my CBR1000 engine will not charge the battery - connections all look ok.
How likely is this to be the Rectifier?
Thanks.
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