Dong Fang DF 250 RTB Bobber Information

[The Cafe`Cafe]

Look out below I am jumping in with both feet.
Just ordered my DF250RTB from Scooter Depot, I know they get spotty reviews but so does every company so I decided that they seam to have been around the longest so must be doing something right to stay a live.
I am slowly picking my way through this thread but 561 pages is a lot of material so if any of you with experience got some insight for me let me have it.
Truth be told if my dream is to come true of opening a shop I should become familiar with China bikes and my Cafe` is at a point of either ride a rat or complete tare down so this gives me a summer scoot.

[barnone]

Andy,
Did you order an A or B model of the DF250RTB?

[The Cafe`Cafe]

Andy,
Did you order an A or B model of the DF250RTB?

Vince,
The A

[barnone]

Andy,
I'd start reading towards the end where the 2012 info starts about page 250.

[axa]

it's all relative, you sort first to last default, last to first, as I do, posts per page, browser or Tapatalk app, your page numbers will vary. references should be given by post number, not page.
this thread has so much crap, kind of like this post of mine, id just read backward. it's a shame someone can't go through and make a read only thread of links to useful links.. by the way look what u picked up for peanuts the other day. it's been fun but I don't reckon I'll be hanging around here much anymore.
I think I'll strip it down and bob it out.

[ben2go]

it's all relative, you sort first to last default, last to first, as I do, posts per page, browser or Tapatalk app, your page numbers will vary. references should be given by post number, not page.
this thread has so much crap, kind of like this post of mine, id just read backward. it's a shame someone can't go through and make a read only thread of links to useful links.. by the way look what u picked up for peanuts the other day. it's been fun but I don't reckon I'll be hanging around here much anymore.
I think I'll strip it down and bob it out.

I have an '00 V Star Classic 650.I can't ride it since I got my Honda CB500X.It rides like shit and has no power at all in comparison.

[The Cafe`Cafe]

bump...

my sprocket started wobbling , or I noticed it , the day she called balling , not fixed or rode since

votage regulator and turn signal relay from http://www.scooterparts4less.com/


Found replacement rear sprocket studs.



Honda Part number 90128-382-670 made in Japan.
Source - Ebay

bent your shift rod ? http://www.gravesport.com/Graves-Mot...Shift-Rod.html

horn bracket as well as a reflector bracket broke for seemingly no reason (rewelded reflector , replaced horn with 1 from Oreilies autoparts (car horn))

sprocket - http://www.oldbikebarn.com/Motorcycl...?search=JTR279 - 520 chain - most seem to go for 36 tooth 38 if your heavy or riding in really hilly conditions , myself (175 lbs) I use a 428 chain 17/36 (17 front wont fit with 520 chain) (15/30 16/33 520 equivalant) (80+ mph indicated perfect conditions) but you MUST HAVE jetting and air ram and keep valve adjustments very close and keep flapping clothing (drag) to a minimum or you will never see the top of 5th
- and remember max horsepower (between 10-15) is produced @ 2/3rds max RPM's unlike overhead cam motors and then it drops off SHARPLY , gear accordingly , you need not reach max rpm's in 5th if you can hold your desired cruise speed at 1/2-2/3 rpm's , which also increases fuel economy and manages heat better

air injector delete

dimming headlight problem, really easy to unplug the blue and white wire from the dark green wire and plug it into the other blue and white wire like it should have been been in the first place. now my light switch works and my lights don't dim

upjet http://www.mychinamoto.com/forums/sh...ll=1#post41593

magnetic drain plug - http://www.oldbikebarn.com/BikeMaste...AG-12MM-ALU-BM

LED tail light ( buy and install new socket/bulb )

I went to auto parts store and bought a radiator hose (used the air filter for sizing) with a 180 degree bend in it cut it to only have the U shape bolted it to the carb the other end to the air filter , now I have a forward facing air intake out in the air stream - aka poormans air ram ( no real effect untill past 50 indicated )

new battery (have to chop into steel battery box to get new 1 to fit) from autozone

HAVE A HUGE PROBLEM!!!!!!
Filled up the tank and started. Holy s--t full RPM, couldn't get to the kill switch fast enough.
pulled the needle seat didnt ya :P
wide open throttle is caused by re-inserting the carb tube (with needle in it) so dont seat fully . I did that myself
look at it the cutout has to be facing the rear wheel , and it will let it seat deeper , stopping that WOT on start

valve adjust - https://docs.google.com/viewer?a=v&p...wZDM3&hl=en_US = compression stroke = both valves fully raised

chain roller - http://www.ebay.com/itm/ATV-CHAIN-RO...009836&vxp=mtr

55/65 watt sealed beam headlight that fits - its a , Sylvania H5006 , and the Wiring harness to go with it , fit inside the existing headlamp shell

all right I believe thats everything fairly relivant to the DF's for the most part (just thought I would mash all upgrade repairs together into 1 compact area) - most are from what others have found im just jamming em into 1 post

from my saved page

[The Cafe`Cafe]

bump...

my sprocket started wobbling , or I noticed it , the day she called balling , not fixed or rode since

votage regulator and turn signal relay from http://www.scooterparts4less.com/


Found replacement rear sprocket studs.



Honda Part number 90128-382-670 made in Japan.
Source - Ebay

bent your shift rod ? http://www.gravesport.com/Graves-Mot...Shift-Rod.html

horn bracket as well as a reflector bracket broke for seemingly no reason (rewelded reflector , replaced horn with 1 from Oreilies autoparts (car horn))

sprocket - http://www.oldbikebarn.com/Motorcycl...?search=JTR279 - 520 chain - most seem to go for 36 tooth 38 if your heavy or riding in really hilly conditions , myself (175 lbs) I use a 428 chain 17/36 (17 front wont fit with 520 chain) (15/30 16/33 520 equivalant) (80+ mph indicated perfect conditions) but you MUST HAVE jetting and air ram and keep valve adjustments very close and keep flapping clothing (drag) to a minimum or you will never see the top of 5th
- and remember max horsepower (between 10-15) is produced @ 2/3rds max RPM's unlike overhead cam motors and then it drops off SHARPLY , gear accordingly , you need not reach max rpm's in 5th if you can hold your desired cruise speed at 1/2-2/3 rpm's , which also increases fuel economy and manages heat better

air injector delete

dimming headlight problem, really easy to unplug the blue and white wire from the dark green wire and plug it into the other blue and white wire like it should have been been in the first place. now my light switch works and my lights don't dim

upjet http://www.mychinamoto.com/forums/sh...ll=1#post41593

magnetic drain plug - http://www.oldbikebarn.com/BikeMaste...AG-12MM-ALU-BM

LED tail light ( buy and install new socket/bulb )

I went to auto parts store and bought a radiator hose (used the air filter for sizing) with a 180 degree bend in it cut it to only have the U shape bolted it to the carb the other end to the air filter , now I have a forward facing air intake out in the air stream - aka poormans air ram ( no real effect untill past 50 indicated )

new battery (have to chop into steel battery box to get new 1 to fit) from autozone

HAVE A HUGE PROBLEM!!!!!!
Filled up the tank and started. Holy s--t full RPM, couldn't get to the kill switch fast enough.
pulled the needle seat didnt ya :P
wide open throttle is caused by re-inserting the carb tube (with needle in it) so dont seat fully . I did that myself
look at it the cutout has to be facing the rear wheel , and it will let it seat deeper , stopping that WOT on start

valve adjust - https://docs.google.com/viewer?a=v&p...wZDM3&hl=en_US = compression stroke = both valves fully raised

chain roller - http://www.ebay.com/itm/ATV-CHAIN-RO...009836&vxp=mtr

55/65 watt sealed beam headlight that fits - its a , Sylvania H5006 , and the Wiring harness to go with it , fit inside the existing headlamp shell

all right I believe thats everything fairly relivant to the DF's for the most part (just thought I would mash all upgrade repairs together into 1 compact area) - most are from what others have found im just jamming em into 1 post

from my saved page

[The Cafe`Cafe]

Andy,
Did you order an A or B model of the DF250RTB?

OK I lied; Scooter Depot is out of DF250RTBs so I ordered through Extreamscooters.biz. But I still ordered an A model though they list it as a Sun not a DF. Appears the same and this is a Wisconsin Dealer with one of their warehouses only about two hours from me so if need be I can be a real thorn in their side.

[barnone]

http://www.extremescooters.biz/250cc...chopper-A.aspx
I bought a 2010 DF250RTB and a 2012 DF250RTB-A from Chad there with good service.
They have raised the priced since I bought my A there. The B is less money. There are a lot of different names for the DF.
I think the bikes I have bought from them shipped from California.