Running hot update

Post your Kettle problems here and cures
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Joined: Tue May 28, 2019 9:26 pm

Running hot update

Postby bobhenry999 » Fri Jul 12, 2019 5:24 pm


Just thought that I would give you an update as you have all been so kind to offer me advice on the cooling issue that I had.

I had the radiator tested at my local radiator specialists, and it had a couple of leaks, so they have sent it away to be re-cored as they couldn`t do it themselves as it is aluminium. In the meantime I have fitted one of the £60.00 aftermarket ones bought on E-Bay (See my comment below) along with a new radiator cap, thermostat and the 2 hoses that come from the expansion tank to the filler neck. I also took the opportunity to replace the main hoses with silicone ones, and then flushed the block out thoroughly. Once the original radiator is back I will put it back on as I want the bike to look as it should.

Started it up today and let it come up to temperature on the driveway and the gauge slowly went up to the middle and stayed there. I took it for a spin and it`s perfectly fine. I did some miles around town, in traffic, along with a cruise along a main A road at 55-60mph (Where it used to get hot) and the needle stayed around the middle mark and there are no leaks from the hoses or the head/barrel joint, so it looks as though I have been lucky and the problem is solved.

If any of you are thinking of getting one of the £60.00 radiators on E-bay, be warned that the plastic radiator guard won`t fit on them because the holes are in the wrong place, and are so far out of place that you couldn`t even file them a bit to get the guard to fit.

Thanks again for all of your help and advice, what a great forum.


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Alan H
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Re: Running hot update

Postby Alan H » Sat Jul 13, 2019 6:20 am

There's been one on my Hippo for years and it's certainly been ok while I've had it. A few thousand miles now.
Proof that four strokes are over complicated

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Joined: Mon Jul 05, 2010 11:01 am
Location: Grimsby, Lincolnshire.

Re: Running hot update

Postby stevewharton » Sat Jul 13, 2019 8:58 am

Had one on mine for a couple of years and several thousand miles now, after being unable to successfully flush the original blocked rad'. Very impressed with the £60 replacement and still can't understand how such a well made quality item can be bought so cheaply. Also impressed with the superior cooling and apparently better running engine, probably due to the rad's much larger capacity. Didn't have a problem fitting the plastic guard though, simply drilled new holes in the brackets and with a few spacer washers between the guard and brackets, job sorted. Did paint the guard black though to get the silver/black contrast reversed :D
HTH. Steve W.
Look, my paintwork hasn't got "Fish scales" :x they're "Dragon scales" right!!! However, after some thought, I will accept "Black Marlin" or "Swordfish", but definitely not "Haddock" or "Cod".


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