Nick, I don't know but you need to tell us what model you have.
2010 DF250RTB, 2012 DF250RTB_A, or 2012 DF250RTB_B, it might make a difference.
I'm guessing under the tank but that is just a guess.
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Nick, I don't know but you need to tell us what model you have.
2010 DF250RTB, 2012 DF250RTB_A, or 2012 DF250RTB_B, it might make a difference.
I'm guessing under the tank but that is just a guess.
Thanks Barnone. It's a 2010 DF250RTB.
if my tach is accurate, slight downhill yesterday, i got just a hair below 60 indicated at just a hair below 7k, and it wouldn't do any better.Quote:
Originally Posted by barnone
Please do tell how the 30 tooth works out.
I must say im going to be a bit tweaked if i have to dump $ on another sprocket.
Against my better judgment, i took the advise of the collective which claimed your weight should determine the size sprocket you can go with... which appear to be a load of crap.
The bike is rev limited like none other ive ever ridden.
I had a 50cc (49cc) 2 stroke way back when that had a normal operating rpm from 5k up to 13k if you pushed it, and would easily achieve 65 no problem cuz apparently it was geared correctly.
On this bike I will top out about 6.5k when it begins to spudder, then shifting at that point brings me no lower than 4k
there is just no range...
I went thru about 5 sprockets , until I figured out the only way I could get speed that wasn't RPM valve float capped (engine sputter @ WOThrottle) was to go with the 17 35 , which is stretching gears from 3 to 2 , id need a diff rear rim to make it geared any lower , Maxed front and rear both at the moment
I stretched front 2 teeth 20% faster , and Rear 10 teeth 33% faster than stock
and when cold . down hill . the wind with me and drafting Im still RPM limited at about 82 indicated (about 73-75 mph)
but my valves are VERY loose , like I set my 38 HPower 1974 VW beetle's valves Attachment 13005 , if I tighten em down I may drag a bit more from her Attachment 13007
/cough , 13/45 that's a snowplow gear that gets about 6 mph ..... and I run a 17 35 :p and think 1st is now "just" short enough (73% shorter) shorter = higher speed , of all vehicles u want 1 that 1st gear is perfect for how u drive is the 1 u get , bikes 1 the only things u can do it yourself with ratio's , do I want a 1/4 mile bike or a cruiserQuote:
Originally Posted by barnone
cruiser tan idler , tan main
racer - tan to black idle , slightly lean very tan 3/4 throttle
I have replaced my horn after 6 months. Had it a year now. And yes it was the horn. Got a french made quality replacement that is adjustable for tone. Didnt want a big ass horn on there as im of the old scholld K.I.S.S. class.Quote:
Originally Posted by bowtiewagon
Attachment 13008
Well no offense Dan and maybe you are the exception. But here in TX the speed limit is 75mhp and most do 80+. And I live in the hill country so I have inclines to deal with. And every biker I talked to thinks I was crazzy to take a 250 on the hwy. IMHO they have a valid point.Quote:
Originally Posted by DanDaMan
45/13 = 3.46 DF stock
41/15 = 2.73 Heist stock
30/13 = 2.31
33/13 = 2.53 my previous 2010
35/13 = 2.69 my current 2012
38/13 = 2.92
I'm going to try 30/13.
I would like to cruise at 55 - 60 MPH on level pavement at 4000 or so RPM.
Don't mind down shifting to 4th to accelerate or go up a grade.
Trouble isn't the horn itself, it is that little bracket that hold it to the bike, right where yours is.See it moves back and forth so much that it eventually just breaks off. I am going for a set of horns and looking at the car horns like Dan said. Louder is better, and hopefully can mount them on a bracket that will not move and break off.Quote:
Originally Posted by GonzoX
Barnone was it easy getting your 2012 DF250 legal to ride in North Carolina? Just wondering cause I'm interested in getting the DF250RTB_A in a couple of months! I found a shop here in Wilmington, NC that can order it for me!
the DF have 13 front sprockets?!?Quote:
Originally Posted by barnone
ive read here and repeated 15 a zillion times
misinformation is rampant
When might you be trying the 30?
I registered my DF in Florida since I'm a Florida resident who spends six months in WNC over the summer.Quote:
Originally Posted by jeperezjr1371
That shop in Wilmington should know if the DF can be registered in NC. What is their price? I paid $2199.99 delivered to WNC.
Pull the cover off the front sprocket and count the teeth. I ordered the 30 tooth rear several days ago so will let you know how she does.Quote:
Originally Posted by axa
Edit: I pulled the cover and my 2012 has 13 teeth on the front sprocket.
I believe some have replaced their chain with a smaller one (420?) and therefore were able to fit a front sprocket with more teeth or modified the front sprocket area to take a larger 520 front sprocket.
im always tweakedQuote:
Originally Posted by barnone
He didn't give me a price cause I wasn't ready to buy right then and there! I really don't want to go through having problems with getting the paperwork to make the bike legal! And I also have no experience working on bikes at all and didn't want to screw up the assembly of the bike! what would you recommend I do? Your opinion would be very much appreciated!
if its a dealer INSTATE they do the paperwork , mail u a TITLE , plates and 1st years Tags , you only gotta get it inspected
my advise , call a semi mechanically inclined friend with a socket set , put it together over barbeque n beer , that's all it should cost u :p , there really VERY LITTLE assembly , like 3 bolts ? , unless your changing sprocket at same time then a bit more
Ask him/her the price. If it is close to $2199.99 (which does not include sales tax,registration,etc) and they are a legit business then maybe that is the way for you to go. He/she deserves to make a profit. If you buy online then you are pretty much on your own.Quote:
Originally Posted by jeperezjr1371
I don't know what you mean about getting the bike legal? It should pass the NC inspection once it is assembled. It can be registered in most states but you need to check with NC's DMV or maybe someone here will verify if the DF can be registered in NC.
The company I bought mine from sent me the paper work I needed so it was no big deal. I did it in the mail.
But if you haven't turned a wrench and don't want to learn then you should not buy a DF or perhaps any motorcycle.
It is a very simple bike to work on and has decent quality but if you don't want to learn to work on it then forget it.
How about taking a class at a local school on motorcycle maintenance and see if you are interested in learning?
If you don't want to do that then forget it.
My grown children asked me to teach them to ride motorcycles so I said to go take the MSF course, get your endorsement, and get back to me. Of course nothing happened.
Take the MSF course first. Then check this out: 07 Honda Rebel CMX250 and your local Honda dealer will do all your repairs. If you ever want to trade up,the value will still be there.Quote:
Originally Posted by jeperezjr1371
A motorcycle design that has been around for 20 some years will have a LOT of aftermarket options.
The Honda is the logical and sensible choice ( if you consider owning a motorcycle logical and sensible ) but I like the DF better.:lol8:Quote:
Originally Posted by SR.MAILMAN
PS: I pulled the cover off the front sprocket and it is a 13 tooth one on my 2012 just like my previous owned 2010.
Hey guys. adjusted the valves today. Runs beautiful.. with just a slight ticking (there was no tick at all before as the valves were RIDICULOUSLY OVER TIGHTENED). I swapped the stock filter back on and capped off the stupid port where the crank case breather was attached just so I dont suck dirt in there while I test run with it. I was able to cruise at 50 on flat ground with a lot of throttle left. I think the valves made a difference for sure. Maybe slightly more mid range power now... but hard to tell. Still 40-45 on inclines.. but it runs on the flat much better. It does run smoother and start easier... with no more back fire through the carb.
I opened it up all the way on flat ground and was able to do 55 indicated but not a hair more. When it's wide open throttle around 50-55 the engine starts to skip and cut out and do some weird stuff... I feel like if it was smooth at this speed and throttle.. that there would be a lot more speed left in her
I had some jets left over so I tried to put a 114 in (the smallest I had) and it was way too big and made the motor run terrible. I just ordered a 108 main to try.. Not sure if the problem around 55 and wide throttle is a lean issue or a valve float. Barnone is running a 108 so ill give it a try.
Dan you say you are running a 112 main. Are you able to full throttle rev in neutral without any engine break up? I was thinking that maybe it would break up in neutral.. but as you get up to speed with that ram air that it might start running leaner and counter act the large jet.. making it run just about right. If this was the case though, full throttle at low speeds would make it run like garbage.
Im going to try the 108 and keep the filter in the stock orientation. Barnone, don't go for the 120.. it is just too much for this bike. ( I tried 114, 115, 120) The 114 would ALMOST rev smooth with the air filter totally removed.. but as soon as I put in back on it ran like crap .. even after turning the fuel adjustment on the carb almost all the way in (bringing it out = more fuel , bringing it in = less fuel).
Im hoping the 108 with some proper adjustments will take care of my problem and allow me to cruise at 55 without the engine bucking.
Barnone are you running the stock idle jet or a 42 or 45.
Btw for those that have asked I can confirm the 2012 has a 105 main and a 40 idle stock.
Your issues sounds like a clogged fuel cap vent or the carb float level is set to low.It's starving for fuel.When it breaks up,reach over and unscrew the fuel cap for a few seconds and see if it gets better.I had a similar issues on my GS5.Quote:
Originally Posted by Bobthebobber
Barnone I actually love wrenching on stuff, I've just never done it on a motorcycle! I just wanted to make the purchasing and getting it legal for the road as easy as possible! I've read all the pages on this forum on the DF250 and I've read that people were having problems with getting the paperwork, that why I was asking! And I definitely like this bike WAY better than the Honda Rebel!
There have been a few Dong Fang motorcycles reg'd in NC.There should not be a problem.If there is,take a day and go to the central office.I think it's in Charollote,NC.Quote:
Originally Posted by jeperezjr1371
Quote:
Originally Posted by ben2go
I notice that my fuel tank leaks out under the cap after a ride with a full tank of gas. A thin line of really thinned out gas will run down the tank after I let it sit for a bit. Is this a fuel cap problem?
I tried the 120 and it was too much. Back to the 108 main and 42 slow and it runs fine. I'm leaving it that way until I get the 30 tooth installed. The 42 seems to help.
My DF is not leaking any fuel around the cap. Is yours leaking after sitting out in the sun?
gas around fuel cap , COMMON , put a girls scrunchy hair tie around it to wick it away , and valve float sounds like your issue , in neutral these bike will rev to like 9-91/2 k and hold it , BUT under load depending on valve lash , the valves will "float" causeing it to sputter and miss entirely around 6-6 1/2 k rpm's , how to fix = shrink your ratio so in 5th you rarely if ever reach 6 1/2 k rpm's
17 35 428hd chain (only way make front 17 sprocket fit) , 112 main = runs great at all rpm's and is light tan at WOThrottle at 70 indicated (about 5k rpms)
the limitations u face = chain size + front and rear sprocket replacements
it is only really about 9-11 horsepower so its no racer but it will drag a 180lb man to 70 indicated into the wind up a grade and hold it if geared properly
Although if you want a snowplow 1st gear and to be able to scream up mountains at 55 (indicated) , then leave it stock :p , but the bike is capable of being stretched 50% to 70 (77 indicated) and will perform
Im also part of the K.I.S.S. army , keep it simple stupid
Quote:
Originally Posted by DanDaMan
i can only scream down hill at 55 with my 35 tooth... and up hill lucky to do 40 (:
Yea. Seems to do it when the temperature is very warm. I ordered a 108 main, 42 slow, and a new plug tonight. Free shipping on everything. Gotta love ebayQuote:
Originally Posted by barnone
Gasoline expands when heated by the sun. Try not filling up the tank so much. I think there is a flue overflow in the neck of the tank? I'll check. If so maybe stopped up or hose kinked?Quote:
Originally Posted by Bobthebobber
Quote:
Originally Posted by barnone
Yea I see there is a little knob on the bottom front right of the gas tank. There is no hose attached to it though. Maybe im missing it