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blocking off radiator

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Simple
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PostPosted: 14:30 - 10 Feb 2007    Post subject: blocking off radiator Reply with quote

having the bike die 4 times on the trip home yesterday due to it being so cold it and I couldnt function as one, ie when moving.

dad says block the radiator off, he's used carrier bags on his navara, I was thinking cardboard.. what do you lot use? how much of the radiator do you cover?

I'll be travelling back to lincoln at 6am monday so it'll be pretty cold still.

Thanks
simple
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Nath
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PostPosted: 14:42 - 10 Feb 2007    Post subject: Reply with quote

How do you mean 'die'? Stalling when pulling away due to a slow idle? If so just turn your idlespeed up a bit.
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mr.z
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PostPosted: 14:48 - 10 Feb 2007    Post subject: Reply with quote

Maybe cover half of it, cardboard will do fine but it'll be a bit mankey when it rains Laughing Sheet of aly or plastic maybe..

Another hting is to check your thermostat is working correctly, if its jammed oped it'll be running cold water arround the engine all the time which will make warming up the engine take aaaaages, you can check it by feeling the pipes running out of it allthough the "propper" way is to take the thermostat off and put it in some boiling water, the bit inside should move @80Âșc or so (ish afaik)put it this way if its not move in going from normal temp to boiling then its stuck/knackered)
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G
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PostPosted: 15:01 - 10 Feb 2007    Post subject: Reply with quote

Strips of gaffa tape is the usual for racers.
Makes it a bit easier to 'tune' the amount of heat you're getting Smile.
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Kickstart
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PostPosted: 15:03 - 10 Feb 2007    Post subject: Reply with quote

Hi

Wouldn't use a plastic bag, certainly not that close to the exhaust headers.

However first thing to check would be that the filters for the carb heaters are clear.

All the best

Keith
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Simple
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PostPosted: 16:24 - 10 Feb 2007    Post subject: Reply with quote

Quote:
How do you mean 'die'? Stalling when pulling away due to a slow idle?
when on mway, at around 4thou rpm I could feel it spluttering, if I backed off the throttle it would die and I'd have to drift onto the hard shoulder to flcik into neutral and start again. It's idling fine, I'd turned it up a little a week or two ago, makes some interesting back fires after overtakes, enough to make one car brake so hard I saw the bonnet dip.

it gets upto temp fine around town and stays there, bu ton the motorway yesterday unless I was craling at 40 the temperature was diving down...

Quote:
However first thing to check would be that the filters for the carb heaters are clear.

not sure on the location of those, will look in haynes when I'm sticking the new battery in later.

Quote:

Maybe cover half of it, cardboard will do fine but it'll be a bit mankey when it rains Sheet of aly or plastic maybe..

I was thinking printed car board, so it wouldnt get too soggy. Not got any gaffa tape, only electrical and it's not very sticky.
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G
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PostPosted: 16:27 - 10 Feb 2007    Post subject: Reply with quote

Simple wrote:

Not got any gaffa tape,


Sorry, I thought you were a biker!
My bad.

Razz
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Simple
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PostPosted: 16:30 - 10 Feb 2007    Post subject: Reply with quote

biker *shudders* dislike that term.. dunno why makes me think of fat women with moustaches

It's too expensive.. I'm also a student Laughing
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MattEMulsion
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PostPosted: 18:32 - 10 Feb 2007    Post subject: Reply with quote

Wow it feels like a trip back to the 1980's here. Do people still block off their radiators in winter? Engine and vehicle technology has come on a long way since those days and I'm fairly confident in saying that blocking off your radiator these days just isn't necessary.

After reading your post Simple I would say that if your temperature is dropping that low whilst on the motorway then you could well have a knackered thermostat. The thermostat shouldn't open until your bike gets near to 80 degrees and should then open and shut to keep the engine temperature up around that mark. The engine works at its most efficient whilst it is hot and hence they are designed to keep stable at that temperature whilst they are running constantly.
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cagiva gezzer
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PostPosted: 19:29 - 10 Feb 2007    Post subject: Reply with quote

Possibel carb icing. Try some silkolene pro fst
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Pete.
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PostPosted: 20:15 - 10 Feb 2007    Post subject: Reply with quote

If it's conking out on the move your cure isn't to be found by blocking airflow to the radiator. It might well stop it from conking out but you won't have cured the problem.
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G
The Voice of Reason



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PostPosted: 20:24 - 10 Feb 2007    Post subject: Reply with quote

MattEMulsion wrote:
Wow it feels like a trip back to the 1980's here. Do people still block off their radiators in winter? Engine and vehicle technology has come on a long way since those days and I'm fairly confident in saying that blocking off your radiator these days just isn't necessary

Erm, the GPZ500 is 80s technology isn't it Smile.

For racing, you want to ideally keep the temperature at a specific point for maximum power, thus the use there.
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Finglonga
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PostPosted: 23:51 - 10 Feb 2007    Post subject: Reply with quote

Simple wrote:
biker *shudders* dislike that term.. dunno why makes me think of fat women with moustaches

It's too expensive.. I'm also a student Laughing


Answered your own question. Wink
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Zimbo
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PostPosted: 00:53 - 11 Feb 2007    Post subject: Reply with quote

Sounds like carb icing to me as well. Stick some pro FST in the fuel and it'll be cured, or if you can't get that then Wynns Dry Fuel is a reasonable substitute, available in Halfrauds.
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