YY250T radiator cooling fixed By rockrider72 (Read 1,401 times)

[rockrider72]

After months of searching for a real solution to this problem and not being 100% confident with anything on the net, i found a local (ft worth, tx) shop that has this down to a science. It cost me $350,but that is well worth it. I don't watch that guage anymore, except in amazement. The shop is g force cycles.

They kept the original radiator and fan behind the gas tank and installed a second, but smaller, one in front. They cut an opening in the plastic behind the front wheel to accommodate for it. My bike would run hot, above 3/4, going over 55. Now, it doesn't crack half way. I am very pleased.

[alleyoop]

Good deal, can you take some pictures of the smaller radiator and how they hooked it up to the orignial one or how they did it. It may help others with a overheating problem do the same thing.
Alleyoop

[cruiser]

Welcome to the forum, rockrider72. Glad to hear you have a cool YY250T. Up here in Massachusetts, I don't run into the heating problem with mine. However, I don't ride much when the temp is over 90 to 95 degrees. I have never reached over mid point on the temp guage. I have checked into the additional radiator and necessary connections for my scoot. This does not look too difficult to do and it might be a nice winter project. Let us know about any other projects and/or repairs you have done.

[JR]

Yes Rockrider and this has been done before by a couple of guys I know and just like your's with great success.

Also would love to see pictures and you may already know but you're our 1000th member! As a milstone member I'll put you on the list for some of my famous persimmon cookies when the persimmons are ripe!

JR

[rockrider72]

The flow goes into this radiator first and the original second. Upon accelerating, the guage actually drops.

I have to pick up the modified beauty plate on my next day off. But this is good for you to see.

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[rockrider72]

Thanks jr. Since I bought this scooter, this forum has been of great help. I also successfully upgraded to dual hid lamps. But, I will do another thread later for that. I just want to be helpful as this forum has been for me.

[rockrider72]

Pic 2

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[rockrider72]

Pic 3

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[cruiser]

Interesting pictures. It looks like a radiator from a Linhai scoot. I can see how it fits without the plastic grill. Is there a radiator cap on the top? With the grill on, there really is no clearance between the grill and the gas tank. I would think that a custom grill would have to be made up to cover the radiator.

Here's the radiator I have been looking at, but I still don't know where to mount it.

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[rockrider72]

No radiator cap. Just the original under the seat. There is about 1/4 to 1/2" clearance between the radiator and the gas tank. Enough to vent well. Did 65 home (15 miles hwy) and never cracked half way. this summer, we were above 110 and I was on the rural streets only.

[rockrider72]

I would think any sealed radiator that fits should do the job.

[cruiser]

So, I would assume that the return hose is at the top? Is this set up difficult to burp?

[rockrider72]

It is. Idk. They did all of that. But, I would think it would be tricky.

[rockrider72]

This is just an untried theory, but, I would try this...

1) temp mount the new radiator and hoses to the right height and lengths.

2) Strap hose ends to radiator and rest of system.

3) unmount radiator and bring it down level to hoses.

4) fill and burp system. Put cap on.

5) rehang radiator after system is burped.

Correct me if this wouldn't work.

[cruiser]

This should work and not be too hard to do especially with the radiator essentially mounted on the outside for easy access.