Dong Fang DF 250 RTB Bobber Information

so any way everybody,. the grip covers i like are $6. the rest is shipping.

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Originally Posted by chruk bashre

so any way everybody,. the grip covers i like are $6. the rest is shipping.

i know, if only the world was free.
people have to make a living. scooter depot sends out the wrong parts all the time. here is why, according to what i have found. it cost me $5 to mail back the same shit as they sent me for $10. ??? thats ok. i stopped payment before they got it back in the mail. oh, except for the 5fuckin$ i spent to have nothing. now how many people have had the same thing back and forth with them. add it up. pow.shipping abuse is rampant. so go to the store and buy what you want. oh, that costs gas. the only thing left to do is hope the free stuff works, i guess. i like free stuff. but i dont use it just cause its free. i use what i know works.
i used to like the scooter chaps, now i dont. i will drive the 5 hours to califuckya next time i need something just to get in thier face. i ordered a shifter peg, you know, the part your toe uses, for my df and got a huge chrome dirt bike foot peg. i sent the other parts back too just because they deserve to have them back and went without. i am looking foward to the trip actually. already mapped it out. so to get back to the bottom bottom line of this piece of thread, the grip covers i like are $6 plus shipping, big deal. J&Pcycles#5000115.
mine cost me $11. so what.

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i dont get it.
so is this rant about not being cheap about hand grips or about scooter depot sending wrong parts

Hey guys, I posted a while back. Got my bike and I love it... but can't seem to get the dang thing running right.

Here are the symptoms:
It will bog down then die when going 52 mph (fully open and as fast as I can go) never really went further than 1 mile at full speed.
Sometimes it will stall when I am down shifting.
Occasionally hard to start when cold.
Whenever it dies on me I have to wait about 5-10 mins before it will fire up again... then it will go about a half mile before dying again. (I always end up pushing it back to my house.
Carb has this sucking noise whenever I give it gas

Here is what I have done:
Oil change (10w40)
Valve adjustment (.002 intake .004 exhaust)
Braided silicone hose on secondary air injection (Factory one burst)
Continually have tried adjusting the carb (fuel/air screw)
Took carb apart and inspected everything (105 main jet, idle jet did not have a number on it?)
Put 1 then 2 then 3 washers under the needle (this helped with cold start but still died on me!)
I even got pissed off and bought a brand new pz30 carb.... same thing!

Any help would be greatly appreciated.

Attachment 11666

Hey, my handles Revjack and I ride a 2012 dong fang with the springer front end, and it handles just fine even on rough road and railroad crossings, just slow down and steer clear of deep potholes and dont jump curbs, the issue with preformance may be because someone at the factory may have droped a 13mm lock nut in your intake and its restricting the flow of air fuel mixtue and interfereing with your intake valve. Thats what happened too me, I removed this unwanted guest ,and found factory valve lash was totally tight, no lash at all thing wouldnt do 35mph with out bogging out,reset lash at .004 intake and .006 exhaust on hot motor and it runs much better. I also removed that smog crap and blocked off the port where it attaches at the head immediate improvement. spray some carb cleaner around rubber intake and carb base while running if motor revs up you have a leak at intake too carb or head. intakes rubber look for cracks in it seal with silicone and check bolts for tightness. good luck.

Hope it's just me and I'll get used to the feel of springers. It's just ALOT rougher ride than my Japanese made NSR.
And I anticipate some foam grips and gloves should do wonders.

Something else to look out for. On my bike the small bracket/guide that holds the bottom adjustment end of the clutch cable, was attached to the bike on a bad angle. So pulling the clutch and tensioning the cable would cause the cable to rub againt that metal adjustment fitting quickly wearing away the cables protective coating. And would have soon worn through the metal cable itself.

So I'd advise simply pulling back that rubber boot and checking it.

I needed to remove the bracket bend more of an angle and reset. Now no more rubbing.
But bending this guide caused the already iffy chrome plating to start cracking, so you will want to refinish the part.
It was no problem removing the chrome on the belt grinder.

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Originally Posted by birdmanajcarson

Hey guys, I posted a while back. Got my bike and I love it... but can't seem to get the dang thing running right.

Here are the symptoms:
It will bog down then die when going 52 mph (fully open and as fast as I can go) never really went further than 1 mile at full speed.
Sometimes it will stall when I am down shifting.
Occasionally hard to start when cold.
Whenever it dies on me I have to wait about 5-10 mins before it will fire up again... then it will go about a half mile before dying again. (I always end up pushing it back to my house.
Carb has this sucking noise whenever I give it gas

Here is what I have done:
Oil change (10w40)
Valve adjustment (.002 intake .004 exhaust)
Braided silicone hose on secondary air injection (Factory one burst)
Continually have tried adjusting the carb (fuel/air screw)
Took carb apart and inspected everything (105 main jet, idle jet did not have a number on it?)
Put 1 then 2 then 3 washers under the needle (this helped with cold start but still died on me!)
I even got pissed off and bought a brand new pz30 carb.... same thing!

Any help would be greatly appreciated.

Attachment 11666

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Sounds like a partially blocked tank petcock or the fuel tank is vacuum locking.Next time it happens,open the fuel cap and ride on.If every thing runs properly, take apart the fuel tank cap and clean all the little holes.Do you have a fuel filter?If so,bypass it an see if it runs better.Paper element fuel filters can restrict flow on gravity feed fuel system like motorcycles.

Without having to read through 355 pages here, just wondering who makes the engines on these bikes? Thanks, Jon

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Originally Posted by birdmove

Without having to read through 355 pages here, just wondering who makes the engines on these bikes? Thanks, Jon

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The bike is made by Ningbo Chariot Industry Trade Co.,LTD. Not sure if they actually make the engine. The website is:
http://nbchariot.com/product.asp?pid=221&id=221&cid=221

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Originally Posted by birdmove

Without having to read through 355 pages here, just wondering who makes the engines on these bikes? Thanks, Jon

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New Zongshen Black Engine 250cc 4 Stroke 5 Speeds Gio Dirt Bike CRF Motocross | eBay

Kick start and intake manifold are different on this one, but it is the same... otherwise.