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Post by yelloscoot on Jan 7, 2016 22:13:56 GMT -5
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Post by dollartwentyfive on Jan 8, 2016 0:19:46 GMT -5
what did ya get?
244 or 257?
the first thing i would do is get an iridium plug for it.
i bought one for mine in 2007 and put 10,000 miles on it.
the scoot has died since then, but i bet that plug is still good.
20 gram rollers seemed to give me a little extra horsepower at top end, it seemed to have better throttle response above 50 MPH.
i got between 50-55 MPG with those rollers.
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Post by oldchopperguy on Jan 8, 2016 1:00:59 GMT -5
Yelloscoot,
Congratulations! Have a bone on the Old Chopper Guy!
VERY good looking scoot. Looks like a cross between a Honda Reflex and my old "Minnie Mouse". You're going to like the increase in torque, horsepower and the solid feel over the 150.
These Jonway 250's seem to be very popular! Please keep us posted and add pix when you can...
Ride safe!
Leo in Texas
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Post by yelloscoot on Jan 8, 2016 17:35:11 GMT -5
I believe it is the CF Moto 244, the vertical one. www.scrappydogscooters.com/images/cf250-scooter.jpgI'm right there with you. I ordered it from the local Autozone and picked it up a couple days later. Tried putting it in yesterday, but, the factory plug was in tight. I didn't want to break or strip anything. I'll give it another shot this weekend . Also had a new coil that never made it into my Red scooter, so, that's going in also. As far as the Hour/Tach Meter, I want to see how much time is put on the motor. My Yellow bike has just over 15K mi. and I wish I knew how many hours I sat my butt in the seat to get that many miles....?? i1241.photobucket.com/albums/gg504/Txcat22/Custom%20Ice/20160108_154845_zpspmfegdbp.jpgI've read, if it's true, that these can get around 75 MPG. The extra little bhp would be nice though. I was disappointed when my Fuelly only read to be 60.6 MPG. But I did have some run time on the center stand to try and get the coolant changed. So that was my thinking on the lower than expected MPG.  Also, and very important, the Temperature gauge is not functioning. I noticed on the way home from the "dealership" that it hadn't moved so I kept an I eye it the whole time. Eventually I started smelling something burning, but realized, it was just the exhaust baking as normal for a new bike. I could hear the quiet whine from the fan kicking on. That was a good sign. I changed over to Prestone 50/50 the next day after draining the kool-aid from the factory, about a half gallon. I've burped it and topped it off a couple times since, but still, no reading on the temp gauge. The wire coming off the thermostat housing is connected. I'm at a loss as to what to check next.Any help would be appreciated. |
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Post by dollartwentyfive on Jan 8, 2016 18:19:39 GMT -5
yes, that's the 244. with some relatively minor engine mods, you can easily get 80/  MPH out of this scoot. even an all stock scoot should top out at around 70 or so. oh man, i'm droolin'. mine is sitting out back with a blown engine (not exactly sure what happened to it) it made a really strange sound at the time it died, almost like the starter engaged, and it hasn't started since. i've been thinking about getting another engine for it from scrappy. that's a nice lookin' ride man. stay safe, and wear your gear. |
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Post by dollartwentyfive on Jan 8, 2016 18:47:02 GMT -5
I've read, if it's true, that these can get around 75 MPG. hmmm . . . i suspect that would be with a lean main jet. mine got on the low side of the 50-60MPG (between 50 and 55) actually the heavier rollers gives better high end performance because they shift the torque curve to the high end. the opposite is true with lighter weights, they give better low end performance. you can't increase the hp of your engine by adjusting the roller weights. i would check the wiring connector, make sure the wires are making the connection. with a half gallon of coolant, you shouldn't have any overheating issues. mine didn't have a gauge, it just had the light. also, try to get a genuine honda intake manifold. the vacuum fuel valve will probably need replacing too, and i suggest a manual valve (but an electric one will work). the drawback with a manual valve is forgetting to shut off the fuel when parking your ride. |
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Post by dollartwentyfive on Jan 8, 2016 23:08:28 GMT -5
about your cooling system concerns:
from the honda service manual
thermostat starts to open between 157 and 162 F, should open between 3.5-4.5 mm.
cap should hold a pressure of 10.7-14.9 PSI
use 50-50 antifreeze mix, protects to -30F
radiator boilover, 226F with no cap, 258F with a cap.
testing gauge/thermoswitch: (sensor on the engine, not the radiator)
turn key to run position.
remove thermoswitch wire from thermoswitch and jumper it to ground.
**CAUTION** IMMEDIATELY remove ground if gauge swings to full hot.
if gauge needle moves then replace thermoswitch.
if gauge needle doesn't move then remove ground and check voltage from sensor wire and ground
if you get voltage then gauge is bad.
if you don't get voltage then reground thermoswitch wire and check voltage between both wires on gauge.
no voltage indicates a broken connection. (possibly a harness connection or some other wiring harness problem)
voltage indicates bad gauge.
from my personal experience:
i removed the thermostat and sat the fans to run continuously.
i also found a 6" computer fan (12V brushless) sold by radioshack to be a good replacement for the fans used on my bike.
my cooling system gave me fits when i first got my ride, i couldn't ride it for more than about 3 miles before the red light came on.
the primary causes were lack of coolant quantity, my system didn't have a large enough cooling capacity.
an improperly vented CVT case.
i got it fixed though, after i said a few choice words.
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Post by JR on Jan 9, 2016 19:49:30 GMT -5
I believe it is the CF Moto 244, the vertical one. www.scrappydogscooters.com/images/cf250-scooter.jpgI'm right there with you. I ordered it from the local Autozone and picked it up a couple days later. Tried putting it in yesterday, but, the factory plug was in tight. I didn't want to break or strip anything. I'll give it another shot this weekend . Also had a new coil that never made it into my Red scooter, so, that's going in also. As far as the Hour/Tach Meter, I want to see how much time is put on the motor. My Yellow bike has just over 15K mi. and I wish I knew how many hours I sat my butt in the seat to get that many miles....?? i1241.photobucket.com/albums/gg504/Txcat22/Custom%20Ice/20160108_154845_zpspmfegdbp.jpgI've read, if it's true, that these can get around 75 MPG. The extra little bhp would be nice though. I was disappointed when my Fuelly only read to be 60.6 MPG. But I did have some run time on the center stand to try and get the coolant changed. So that was my thinking on the lower than expected MPG. Also, and very important, the Temperature gauge is not functioning. I noticed on the way home from the "dealership" that it hadn't moved so I kept an I eye it the whole time. Eventually I started smelling something burning, but realized, it was just the exhaust baking as normal for a new bike. I could hear the quiet whine from the fan kicking on. That was a good sign. I changed over to Prestone 50/50 the next day after draining the kool-aid from the factory, about a half gallon. I've burped it and topped it off a couple times since, but still, no reading on the temp gauge. The wire coming off the thermostat housing is connected. I'm at a loss as to what to check next.Any help would be appreciated. Do NOT remove the thermostat for the engine, doing so will more than likely make the engine run hot. Plus running the cooling fan all the time will cause excessive current draw on the charging system and you'll have a dead battery, the charging system on the 244cc vertical engine is weaker than the linhai. Are you sure you burbed it properly and have absolutely no air in the system, the slightest amount of air = no gauge reading or a hot reading plus the fan may not come on also. My burbing directions: (1) Put scooter on center stand and remove plastic cover under the seat to access radiator cap.
(2) Place catch pan under the drain bolt location, remove the drain bolt, then remove radiator cap. [DO NOT LOSE COPPER WASHER ON BOLT]
(3) After coolant is drained take water hose and flush radiator well with clean running water, can even do it two or three times. If you have an air compressor you can even blow out all water completely
(4) Replace drain bolt with the copper washer , a little silicone gasket maker is good to use too, secure tightly.
(5) Fill radiator completely with coolant, a long funnel is nice and doesn't make a mess. [USE ONLY COOLANT FREE OF NITRATES, BORATES, SILICATES & SPECIFIED FOR ALUMINUM BLOCK ENGINES] One can mix their own coolant on a 50/50 ratio but it is a lot easier to use a 50/50 premix (I use Prestone)
(6) Start scooter and let run until thermostat opens and you see coolant start to circulate (this only takes a few minutes) Re-fill until full as the coolant will generally go down, immediately put on radiator cap securely after re-filling
(7) Fill radiator plastic reservoir tank to about 3/4 full with same coolant after putting on the radiator cap
(8) Let idle until the temp gauge comes up to about the 1/2 way mark and then shut off scooter (the fan may or may not come on, doesn't matter)
(9) Go watch TV, read a book, but let scooter sit until it's bone cold.
(10) Remove radiator cap and re-fill with coolant, start engine, let circulate, fill again if needed, put radiator cap back on.
(11) Fill plastic reservoir tank again to about 3/4 full, put on rubber cap and watch temp gauge and see if fan cycles on and off.
(12) DONE!
If for some reason it seems to want to get warm and fan not cycle on and off then repeat steps number 9,10 and 11 again.
You can even run the scooter around the block and see if the fan comes on and off and how the temp gauge reads.
This has always worked for me first time and every time.
________________________________________
These are the basic operating temperature ranges for the 250 scooter thermostat and radiator thermo switch:
Thermostat
Nominal temp. designation....165 deg F
Begins opening......................157-163 deg F
Fully open...............................176 deg F
Fan Thermo-switch
Starts to close (continuity)....... 208-216 deg F
Starts to open (no continuity).. 196-210 deg FRemember as with all scooters if you bought it from a dealer that didn't do a good PDI or if you bought it online delivered to your door the strip it down PDI is a must to insure all things are OK. A fan not coming on can be a blown fuse, bad connection on the thermoswitch on the radiator, or loose wire. No gauge reading can be a bad temp sending unit on the engine but more than likely it's a loose wire. If you've burbed it good then it's time to trace the wires out all the way to the gauge in the instrument panel. JR |
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Post by yelloscoot on Jan 10, 2016 8:29:00 GMT -5
Yelloscoot, Congratulations! Have a bone on the Old Chopper Guy! VERY good looking scoot. Looks like a cross between a Honda Reflex and my old "Minnie Mouse". You're going to like the increase in torque, horsepower and the solid feel over the 150. Thanks Leo. To be totally honest, I had you in mind, when I was picking this one out. I love the look of Minnie Mouse. You really are attached to her and she is serving you well. I'm hoping this one will stand the test of time. There's so much more to the 250's then the 150's. I'll be posting later about things I've noticed, with the new one, that I want to take care of.   I really like Minnie's lowered "Ears", sharper lines, front vents and the flared windshield. |
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Post by yelloscoot on Jan 10, 2016 9:54:26 GMT -5
testing gauge/thermoswitch: turn key to run position. remove thermoswitch wire from thermoswitch and jumper it to ground. **CAUTION** IMMEDIATELY remove ground if gauge swings to full hot. if gauge needle moves then replace thermoswitch. if gauge needle doesn't move then remove ground and check voltage from sensor wire and ground if you get voltage then gauge is bad. if you don't get voltage then reground thermoswitch wire and check voltage between both wires on gauge. no voltage indicates a broken connection. (possibly a harness connection or some other wiring harness problem) voltage indicates bad gauge.. So far, I've made it down to checking for voltage at the thermoswitch connection,...nothing.  I've looked up under the front cowling and can see the meter with the wires attached, but, haven't removed any of the plastics to get to it. With the cold weather here now, and brittle plastic that comes with it, I don't want to take a chance of breaking anything. I'll have to wait for some warmer days to get to the meter and check for voltage there. Or, might be able to fashion an extension to reach up there. But not while it's below freezing.  But this is Texas, and, that could be tomorrow or next week.  |
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Post by dollartwentyfive on Jan 10, 2016 11:17:03 GMT -5
i wasn't very clear in my last post, and i'm going to edit it. by thermoswitch i mean the temp sensor on the engine, not the fan sensors on the radiators. also, the specs i mentioned were for a genuine honda product, and may or may not be the same as yours. they came from hondas "common service manual" part no. 61CM00C. a 393 page publication. the setup i had never gave me any charging/battery/overheating problems. OTOH, i had a "bare bones" system, head/tail lights, turn signals, fans (2) CDI, coil, and tach. i agree with JR about the PDI, these chinese scoots use questionable methods in regards to electrical concerns. anyway, try to find the part number above, it was on the net at one time, a great manual. some of it will not apply to chinese scoots, the wiring diagrams for example, but  % of it will. |
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Post by oldchopperguy on Jan 10, 2016 16:18:01 GMT -5
Yelloscoot,
I'm honored! And Minnie Mouse too... 
Actually, your scoot's "nose" is a lot sleeker than old Minnie. More like a crotch-rocket or sport-bike. Minnie REALLY has a "schnoz"... VERY "rodent-like"... Only missing whiskers and buck-teeth...HeHeHe... And yours is like the Reflex: very LONG which provides an excellent ride. It would also accommodate saddlebags better than mine, but after two years, I'm still liking the old Kymco more and more, LARGELY because she's as drop-dead-reliable as the family car.
In my case, I really wanted a SHORT 250 and there are not many around... LOL! I'm probably a Vespa guy in disguise... Newer scoots are trending "long wheelbase" for that cushy highway ride. Probably a good idea, since the extra length doesn't really hurt city riding much anyway. I'm just getting old and picky...
You really DO need a functioning temp-gauge on these tea-kettles. They WILL overheat if idled too long on a hot day. If using a factory-style gauge is not working out, I see no reason why you couldn't get an old-school automotive aftermarket water-temp gauge from the local speed-shop and make it work. You probably could cut a water-line and splice in a sending unit.
As for performance, from what the savvy guys on the site relate, the BEST move is to go with Dr. Pulley SLIDERS in the variator. I'm not sure just what weight is best, but Rockynv has had super results on his Italian scoot! I'm with you as while Minnie will do an honest 80+ under "perfect" conditions, but 70 is about it with wind and hills, I'd really like to get maybe 5 more mph with a tad lower rpm. Sliders might do it. She was "up-toothed" one tooth in the final drive LONG ago by the original owner who rode  % freeway, but I don't see any major speed increase; but a big drop in rpm, and a major increase in gas mileage. I check often, and with mostly city riding she's giving between 80 and mpg! Much better than my old 150... Lower rpm really makes a difference, but you need the torque of a 250 or bigger, to get away with it.
I installed an iridium plug, and it is fine but did not make a noticeable difference. On my old 150, it DID make a difference.
I see yours also has a "lumbar-support" on the seat. Some riders don't like them, but I love mine. Take a fast hop on a bumpy road and it's like having a chiropractor riding passenger! My back is very bad from years of riding hard-tail Harley choppers (I'm an inch shorter than when I was young...) so I'm keeping MY "support"...
There really IS a world of difference between the 150 and 250. The 250 really feels more like a midsize MOTORCYCLE at speed, yet is still nimble in slow traffic. The 250's are also a lot heavier-duty with less frame-flex and a more solid feel at any speed. I'm sold on 'em!
You really got a NICE one... So...
Ride safe... and enjoy the ride!
Leo in Texas
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Post by cyborg on Jan 11, 2016 9:49:40 GMT -5
Very nice,,,looks to be a really great bike!!!!!
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Post by spunn on Jan 11, 2016 14:59:06 GMT -5
What a nice looking scoot! Congrats on the step up. I am sure you'll love riding her!
Be safe!
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Post by spandi on Jan 14, 2016 16:06:55 GMT -5
I've read, if it's true, that these can get around 75 MPG. hmmm . . . i suspect that would be with a lean main jet. mine got on the low side of the 50-60MPG (between 50 and 55) actually the heavier rollers gives better high end performance because they shift the torque curve to the high end. the opposite is true with lighter weights, they give better low end performance. you can't increase the hp of your engine by adjusting the roller weights. i would check the wiring connector, make sure the wires are making the connection. with a half gallon of coolant, you shouldn't have any overheating issues. mine didn't have a gauge, it just had the light. also, try to get a genuine honda intake manifold. the vacuum fuel valve will probably need replacing too, and i suggest a manual valve (but an electric one will work). the drawback with a manual valve is forgetting to shut off the fuel when parking your ride. dontcha' mean get an OEM YAMAHA intake manifold? |
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Also, and very important, the Temperature gauge is not functioning. I noticed on the way home from the "dealership" that it hadn't moved so I kept an I eye it the whole time. Eventually I started smelling something burning, but realized, it was just the exhaust baking as normal for a new bike. I could hear the quiet whine from the fan kicking on. That was a good sign.
MPH out of this scoot.
% of it will.
% freeway, but I don't see any major speed increase; but a big drop in rpm, and a major increase in gas mileage. I check often, and with mostly city riding she's giving between 80 and 
