Dong Fang DF250RTG

[Barnone]

Originally Posted by chuck

Good luck, trying to control yourself

Already guilty as I ran her up to 60 the other day. Couldn't help it.

[Barnone]

Hooked up one of my Aosom bicycle trailers to the DF and took her for a test run. All is well. I use these trailers in the mountains when I have to make a garbage, recycling, grocery, etc run.

[Riggs]

Originally Posted by Barnone

Hooked up one of my Aosom bicycle trailers to the DF and took her for a test run. All is well. I use these trailers in the mountains when I have to make a garbage, recycling, grocery, etc run.

Hey Barnone. How fast can you go towing that bicycle trailer?


And if trailer is modified please elaborate. Thanks.

[Azhule]

Originally Posted by Barnone

Just saw the tiny sticker on the engine that informed me to not exceed 50 kph (31 MPH) for the first 300 km (186 miles) and do the first oil change at 300 km.

I wouldn't worry too much about that... I was hitting 80+ mph well before the 10km marker ticked on my China Bike

If you do things right, the early onset of excess speed wont hurt these engines/transmissions one bit

[Azhule]

Originally Posted by Barnone

What China bike were you riding at 80+ MPH?

I like to ride the Mrs. Bashan "WILL" 200 at those speeds to get myself to the mountain trails a wee bit faster I have held 75 to 80+ mph for several hours (2 to 4) at a time and the bike is still running strong after 4k miles

197cc Lifan engine is powering that little bike... 17t and 39t sprockets to help get that highway speed... little issues "off road/mountain trailing" with that gearing choice and my massive 108lbs on the bike (lost some more weight recently )

[Azhule]

Originally Posted by Barnone

Have you checked the accuracy of your speedometer?

I have, it has a digital Trail Tech Vapor with an extremely accurate speedo after I measured the wheel and did the initial maths, took a ride, it was a little off and I played around with the numbers for a few rides until it was dead on accurate with a 5 mile trip from pops garage to a local gas station.

Now with 83 mph showing on both a follow vehicle and 2 GPS devices (one phone, one garmin) and the bike was showing 82.6 (and slowly climbing) mph on the speedo

No way I would still be around going slow on I-25... round these parts speed limit is 65 to 75 mph from my house to the mountains... traffic rarely goes slower than 80 though...

[MDStroup]

Originally Posted by Azhule

I have, it has a digital Trail Tech Vapor with an extremely accurate speedo after I measured the wheel and did the initial maths, took a ride, it was a little off and I played around with the numbers for a few rides until it was dead on accurate with a 5 mile trip from pops garage to a local gas station.

Now with 83 mph showing on both a follow vehicle and 2 GPS devices (one phone, one garmin) and the bike was showing 82.6 (and slowly climbing) mph on the speedo

No way I would still be around going slow on I-25... round these parts speed limit is 65 to 75 mph from my house to the mountains... traffic rarely goes slower than 80 though...

Wow! That engine has some get up and go!! What model exactly do you have?

[Barnone]

Just got the pad off Ebay and installed it on the bracket I made to keep my heel off the muffler.
I Wii clean the rubber off with some steel wool and touch it up with some rattle can flat black.

[ben2go]

Nice upgrade.

[MDStroup]

Wish the displacement was a bit closer to the 250 mark then what it is, but it is a step in the right direction.
I had a question, what carb is on this bike? Also does anyone know what the compression is?

[Barnone]

Zongshen 250cc 165FMM Air Cooled Motorcycle Engine
Performance Parameter
Engine Mode ZS165FMM
Engine Name CB250D-G
Engine Type Single cylinder,4-stroke, air-cooling,camshaft upward
Displacement(ml) 223
Dimension(mm×mm×mm) 375×297×405
Net Weight(kg) 31
Max.Power(kw/r/min) 12/7000
Max.Torque(N.m/r/min) 17.5/5500
Compression Ratio 9.3-9.9:1
Bore and Stroke(mm×mm) 65.5×62.2
Ignition method CDI
Lubrication method Pressure and Splash
Min.Fuel Consumption(a/Kw.h) ≤354
Starting method Electric/kick
Clutch method Manual Wet Multi-Plate
Gearshift Method Constant mesh,two stage transmission, 5-speed Gearshift

[Barnone]

Carb Dekni PZ30

Tuning manual PZ30 is like PZ26
http://www.ccwthariders.com/uploads/...ing_manual.pdf

[MDStroup]

Originally Posted by Barnone

Carb Dekni PZ30
No choke but it starts up just fine if you give it a little throttle.
Tuning manual PZ30 is like PZ26
http://www.ccwthariders.com/uploads/...ing_manual.pdf

Thanks. So it doesn't look like you can upgrade the carb to a larger one as it already has a larger one on it.

[Barnone]

Never over 65 MPH towing the trailer behind my long gone W650. Only mod is changing out the tires and wheels from the bicycle ones after they wore out. Now I am running pit bike wheels on both the trailers. Have one of the trailers in Fort Myers Fl for the winter. The other is in WNC close to Robbinsville, NC. Use the one in the mountains a lot. Not so much in FL.

[Barnone]

Put some saddlebags on her.