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Post by damin69 on Jul 25, 2011 19:37:41 GMT -6
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Post by cruiser on Jul 25, 2011 20:16:42 GMT -6
That is a thing of beauty, Todd. I am anxiously waiting to see how it turns out.
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Post by JR on Jul 25, 2011 20:34:25 GMT -6
Drooooooool! Tood not only is this nice clean professional type work it's gonna work! Copper is an excellant choice and this will help by two means, extra volume of coolant and more cooling surface.
I did the same thing on the little line on the linhai up by the head a long time ago with 1/4" copper tubing that goes all the way up to the front grill, makes a heck of cooling coil.
Nice work when finished we'll put it in the custom section, this is great!
JR
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Post by damin69 on Jul 25, 2011 20:47:35 GMT -6
Thanks Guys. I appreciate the comments. We should get this all buttoned up next weekend and be able to give it a try.
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Post by yoster on Jul 26, 2011 9:59:25 GMT -6
Todd I think we're part of the same family tree somewhere back in our ancestry. I was just thinking about trying to tackle something similar to this a few weeks ago! (new baby has severely hampered my time out in the garage lol). .. Shoot.. on that note I forget to tell everyone here.. as of February 19th I'm a new daddy to a little girl  Anyway, if this thing ends up working, wold you be willing spec out the parts list and where you got it at? Like the OMP thing, I'll be copying this if it works My next hurdle I've been running into with my scooter lately is exactly this, cooling (this 100+ degree weather doesn't allow me to go more than maybe 15 minutes on the freeway without needing to pull over to let it cool down for a bit). Looks great so far! |
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Post by damin69 on Jul 26, 2011 11:12:46 GMT -6
Todd I think we're part of the same family tree somewhere back in our ancestry. I was just thinking about trying to tackle something similar to this a few weeks ago! (new baby has severely hampered my time out in the garage lol). .. Shoot.. on that note I forget to tell everyone here.. as of February 19th I'm a new daddy to a little girl Anyway, if this thing ends up working, wold you be willing spec out the parts list and where you got it at? Like the OMP thing, I'll be copying this if it works My next hurdle I've been running into with my scooter lately is exactly this, cooling (this 100+ degree weather doesn't allow me to go more than maybe 15 minutes on the freeway without needing to pull over to let it cool down for a bit). Looks great so far! Yoster, BTW Congrats on the baby... I am with you and this having to slow down and cool down after 10 min of running 55mph is for the birds. I can run 4800 rpms all day which keeps me about 55 mph and have no issues with cooling kick it up to 5300-5500 to keep me about 56-58mph and then it starts to get warm this is very frustrating. Since I rebuilt this thing this spring it has RAN better than it did when it was new plus after breaking in the new piston and sleeve I am able to get over 65 mph which I was unable to do last year. My goal is to get this thing so I can ride all the way to work with out having to take back roads for the last 20 miles. I run a stretch of road 40 mile of which is pretty much strait level road. It is a 55mph road and has 7 towns I go through that I have to slow down for. I would like to be able to Ride the whole way to work and only have to slow down for the towns not because I have to keep the motor cool enough to keep from over heating. I hope with this MOD it will be a GOAL I can REACH. As for Detailing the specs of m Mod If it work I will be doing a detailed step by step so that others maybe able to benefit from what I have done. The OMP thread is almost like REQUIRED Reading for anyone with a 244cc style motor with charging issues. I do enjoy working on these scooters but I sure would rather be riding. In the last couple of months I have had half a dozen people stop by my house and start asking about the scooters. Heck the day I got a radiator that I was hoping would work for what I am doing this mod for, my mail man stopped by with the package he saw that I was out in the Garage popped his head in and was WOW you got quite a Motorcycle shop here. I have pretty much in the last year arranged my garage to be just that a motor cycle shop. Which brings me to one more thing on my Tech To DO list. I will speck out my lift that I built. It was build using wood I had laying around but if I was to build another one the only thing I would do different would be to make it about 12 inches wider. 24 inches works but 36 would definitely be better. This lift has paid for itself 10 times over. Anyone that is working on these things as much as some of us do should have one. The guy that I have mount my tires and balance them for me has a full Motorcycle shop said he was a bit Jealous as he has motorcycle shop but does not even have a Lift so has to do all his work from floor. |
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Post by yoster on Jul 26, 2011 11:38:01 GMT -6
I have to say, if I could do it all over again, I would have gone with the Linhai.
In all the Linhai vs cfmoto debates, this settles it. The issues we deal with aren't just isolated to us; they're systemic issues. Right out the gate, in stock form, you WILL have charging issues and you WILL have cooling issues if you run at 55+ on a warm day more than 10 minutes straight (on this particular model with the rad location). Annoying.
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Post by damin69 on Jul 26, 2011 12:19:25 GMT -6
Well I am actually more frustrated with my Linhai MC-62-250 right now than I am with this. Everything says that it should run circles around my Jonway. But for the life of me it idles great has super bottom end up to like 45mph but I CAN Not get that PIG to run worth a shit on top end. I am lucky if I can hold 55mph it is just a flippin DOG. but it runs cool. I have tried everything that I can think of. I have had to fix many many things the previous owner screwed up on it. I just got done trying a readjust of the Valves but when I started it the throttle cable broke so waiting for the new one to get here hope that the Valve adjustment did the trick to fix the top end issue. So in other word Both MODELS can have issues I was just lucky to get a LEMON in both. :  |
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Post by cruiser on Jul 26, 2011 13:11:11 GMT -6
Please don't take offense when I say this, Todd. It couldn't have happened to a better scootist. What I mean is that there are not many scoot owners out there who would pursue and fix these problems and even improve on them. It is unusual that you have a Linhai with gremlins, but I'm sure you will exorcise them out and we will all benefit from the results of your labors. You and your Dad have the patience to document your results for our benefit. We are all rootin' for ya. ;D
My 244cc has been to almost 85 mph (indicated) which is over an actual 75 mph on the flat with no wind. This latest improvement came after a careful realignment of the venturi tube which connects the carb to the air cleaner. I think I was able to get a good seal and along with the K&N replacement filter, it seems to pull high speeds nicely. Now I have to find some time for extended high speed runs to see how hot the scoot runs. Haven't gone over 1/4 guage so far this summer. New England has had some nice cooler weather.
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Post by n4zou on Jul 29, 2011 19:55:10 GMT -6
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Post by JR on Jul 29, 2011 20:44:26 GMT -6
Nice job guys, this is why the 250 section on this forum is going to be a winner! Jobs like these help all who see. Myself even though the linhai with it's design on this scooter runs cooler I'm a nut about keeping it cool and I a long time ago added copper lines on my 250B and this spring I added this to my wifes 250A with the linhai:  I have a neighbor who is a retired John Deere mechanic and he has a graveyard of old mowers, engines and parts and this is a small aluminum radiator off of a water cooled John Deere I believe a Kohler engine. He gave it to me! The linhai has a little by-pass line from the themostat housing to the head that allows coolant to flow until the thermostat opens a great spot to put extra cooling lines and in this case I plumbed in this little radiator. She runs cool as a cucumber. Last year in July I took my 250B to Dallas 408 miles one way and the day I arrived it was 104 in red light to red light Dallas traffic and my scooter fan cycled on and off did not continously run, that's keeping it cool! Keep up the good work and I know at one time Cruiser had a radiator project? JR |
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Post by cruiser on Jul 29, 2011 22:08:08 GMT -6
That's a nice compact cooler, Scott. Where on the scoot did you mount it? Did it take care of all your cooling problems? Was it difficult to bleed the air out of it? |
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Post by damin69 on Jul 29, 2011 22:40:54 GMT -6
N4 that is awesome.
Well I got the air purged out of the system tonight. So hope to give it a test tomorrow and get back tomorrow night on how it all went.
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Post by n4zou on Jul 30, 2011 11:17:58 GMT -6
That's a nice compact cooler, Scott. Where on the scoot did you mount it? Did it take care of all your cooling problems? Was it difficult to bleed the air out of it? The radiator on my TANK was located behind the fuel tank right in front of the engine. This model was notorious for overheating. The radiator placement does not allow natural air flow across the radiator. There was plenty of room to mount it behind the grill in front of the fuel tank where the radiator should have been mounted anyway. I used standard heater hose from Autozone to hook it up in line with the stock radiator. I had to make some hose adaptors because the radiator had 1/2 nipples but the stock radiator used 5/8 heater hose. I routed the hose from the water pump to the new radiator and hooked the hose to the lower fitting with a 5/8 to 1/2 inch adaptor between. The upper and now outlet from the new radiator was also fitted with a 1/2 to 5/8 adaptor. On this adaptor I drilled and tapped a 1/8 NPT hole and a 1/8 pipe barb. I ran 1/8 hose and put a 1/8 "T" into the 1/8 hose connected to the radiator cap neck. This bleeds air from the new radiator because the upper outlet of the new radiator must connect to the bottom radiator on the stock radiator which would trap air. The small diameter hose used does allow a little coolant to bypass the stock radiator but it's so small and the amount of coolant so little that it makes no difference in cooling. You could install a small valve and shut it off after bleeding out the air but There really is no reason to bother with it. Anyway the new radiator is now connected to the stock radiator. I had no problems burping the air out of the system. I never had any cooling problems after adding that radiator and the fan would actually cycle on and off according to stop and go or very slow operation. The fan would never turn on while running on an open road above 30 MPH even on 90+ degree days. The only downside was it took a long time for the engine temp to get up to operating temp during the winter. This made an impact on fuel mileage so I installed a valve and bypass line so I could disable the add-on radiator when the ambient temperature was below 50 degrees. I do ride year round even when the temps are below freezing. |
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Post by lynn on Jul 30, 2011 19:37:21 GMT -6
Damin, can't wait to see how your project turns out. I think all of us with that 244 engine suffer with overheating problems. Good luck, Lynn
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