Cooling on an icebear tornado 300cc By vlxerdon (Read 2,534 times)

[vlxerdon]

Hello all. New here and to scooters but not to motorcycles. Been riding many years, wife and I are both 71 now and wife , due to some physcial problems, is no longer able to get her leg high enough to get on the bike with me . We have been riding our entire married life and miss it very much. To that cause , Bought a 2015 Icebear tornado trike for her. It has sat for over a year. Only had 5 miles on it when I bought it. I have gone over it very well changing all the fluids and greasing ,lubing and tightening everything I could find. I have a question I hope someone here can answer for me. The trike is overheating . I have a new water pump and pump to block tube on the way. My question is what hose from the radiator should be going to the water pump. On a car the lower hose generally goes to the water pump and the upper is going to the thermostat. One the trike it is just the opposite. I am asking because when taking the lower hose from the pump ,nothing drains out. I would think with the radiator drain being in the pump, removing that hose would drain the radiator as well. Hope someone can help me. Thanks in advance.

JD

[vlxerdon]

I have pretty much googled myself out. Can not locate a cooling system diagram for a Lanhai, Yamaha yp 250 or any other Chinese scoot, wow. The only diagrams I could find are not really for my scooter, however they all do show the lower radiator hose going to the water pump. Guess I will take a chance and reverse the hoses on mine and hope I do no damage.

JD

[jct842]

If you can get JR to respond you may find that your scooter just needs proper "burping" He has claimed he has found the proper way to burp them. What happens is air gets trapped in the cooling system, then it boils and makes more air. Rapid Jim is a dealer for Icebear and also may have a simple fix for you too.

I would hold off on reversing hoses until you talk with one of those guys. I would assume that those hoses were put on in the correct places. The chinese are lax on final quality control such as loose connectors but I doubt if a new machine would be built with hoses on wrong.

[vlxerdon]

Thanks for the response. I will hold off. Been burping this thing a lot. Too bad they don't come with a bleed screw like the Yamaha.

[jct842]

You might try going thru the library here, there is a lot of information there. I know JR's method will be found if you search hard enough. either in library or in past pages.

[vlxerdon]

I found a very easy way to bleed the system. The Yamaha 250 YP has a bleed screw at the carb , the Linhai no. There is a small water hose going to the Linhai carb, so I removed one end and filled the system until coolant came out, replaced the hose , topped the system off and it worked just fine. Ran about 15 minutes, shut down, let cool and topped off. Everything is working fine now. Thanks for your responses.

JD

[crwford]

My 3 300 cc Zodiac's I leave off radiator cap as engine running I start squeezing hose from thermostat housing till it starts getting warm shut off cool down top of if needed cap off.

[vlxerdon]

Many thanks for the help. Appreciate it.

JD