Author Topic: FL250 water cooled head  (Read 1847 times)

honda rider

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FL250 water cooled head
« on: September 23, 2013, 12:29:10 AM »
Has anybody used these water cooled heads on the FL250 and did you have to install a small circulation pump on them? I have just installed a water cooled head on mine and a guy said that you should install a small pump off the stator to get good flow. I have just got my engine out of the shop and have had the whole lower end rebuilt almost 1200.00 bucks with of machine work and new parts and I want this thing to last for years to come. Any thought or suggestions are welcome and any pics are greatly appreciated as well.

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LiveWire

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Re: FL250 water cooled head
« Reply #1 on: September 23, 2013, 04:15:56 PM »
You should not need a pump if the radiator is of sufficient size, has vertical tubes with the tanks at top and bottom. Hose must be connected, top to top/back of head, bottom to bottom/front of head.

b s

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Re: FL250 water cooled head
« Reply #2 on: November 18, 2013, 04:07:55 AM »
Google thermosyphon

Here's a pic
Had a  thermosyphon on my 350 had no problems