Dong Fang DF 250 RTB Bobber Information

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Originally Posted by mattbujor

if gas runs out? and if it doesnt?

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Very basic troubleshooting. When the engine stops running as soon as possibel just open the drain screw on the float bowl.

If gas runs out of the drain hose on the float bowl then you are getting gas to the carburetor float bowl and don't have a problem with the tank vent, filter in the tank, petcock, float valve,etc.

If gas does not run out of the hose then you are not getting gas to the carburetor float bowl and then you probably have a problem with the items above.

Report back your findings and we will go from there.

You never did answer my question about why you think the engine is running hot.

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Originally Posted by barnone

alleycat,
Nice crate.:lol8: looks better than the one I got with my DF.
Lots of photos please.

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Attachment 5974

Wrapper and pallet looked good.


Attachment 5975

Box show shipping wear, may from China?


Attachment 5976

Some fork lift driver missed the pallet, LOL. Caused the bike to shift.

Attachment 5977

Shipping frame pushed into left turn signal/running lamp. Didn't make a mark.


Attachment 5978

Rear shipping frame pushed into seat.



All in all, I don't see any problems yet.

Attachment 5979

This side looks good.


Attachment 5980

Attachment 5981

You can see the shift here


More pics as I go. Guys, I'm sure I'm going to be full of questions... Please check back!

Dear Alleykat,

Greetings from Shanghai, and welcome to the forum. Hot damn, this is starting to look like an invasion of Texas by chinabikes!

Very much enjoying your slow unwrapping of your new Dongfang. Keep it coming.

cheers

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Originally Posted by euphonius

Dear Alleykat,

Greetings from Shanghai, and welcome to the forum. Hot damn, this is starting to look like an invasion of Texas by chinabikes!

Very much enjoying your slow unwrapping of your new Dongfang. Keep it coming.

cheers

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Thanks!

Bike "porn" has to be slow. LoL

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Originally Posted by mattbujor

check everything on the bike for warranty/shipping damage claims, loctite everything and dont forget oil change, have fun :)

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Thanks, will do. I've already got a head start from this thread on what I should be doing. Thanks again guys.

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Originally Posted by barnone

Very basic troubleshooting. When the engine stops running as soon as possibel just open the drain screw on the float bowl.

If gas runs out of the drain hose on the float bowl then you are getting gas to the carburetor float bowl and don't have a problem with the tank vent, filter in the tank, petcock, float valve,etc.

If gas does not run out of the hose then you are not getting gas to the carburetor float bowl and then you probably have a problem with the items above.

Report back your findings and we will go from there.

You never did answer my question about why you think the engine is running hot.

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man you are on point! Tomorrow I will run the bike till the problem comes up and try everything you and the others have told me. Also sorry about that, I did not know if you were asking what I thought the cause of the hotness was or if it just seemed to hot to me. Ill answer both now, to me it gets really really hot after riding for just like 5 minutes through all gears shifting 3000-4000rpm, I dont know the actual temperature but it seems hot enough and when I look at cables and wires that are not even touching anything metal, I can see that the plastic has worn off due to the heat. The cause I think is just that it is a badly designed engine with bad gearing, or I should say not the right gearing for what I am doing but all I am doing is just trying to drive it normally everyday on public roads not highways, its air cooled and a mechanic I talked to told me that its most likely a valve adjustment I would need, same thing the guys at scooterdepot told me, and they said if the engine gets too hot this is what happens to the valves and this is what has been casuing the problems to my bike.

my valves were tight as hell when it arrived.

mattbujor,
You have two threads going on your problem. Why not keep the discussion in one thread ? How about just using the one at http://www.mychinamoto.com/forums/sh...e-carb-problem so you keep it out of this one on the the DF bobber?

as long as we are talking valves, did anyone else have the problem after adjusting valves to specs. they sounded good until warmed up then they rattled like crazy. i would think they would quiet up more when warm. after trying everything i could come up with. I set them both at zero. I even tried zero on intake and 2 on ex. still major rattle.

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Originally Posted by reporon

as long as we are talking valves, did anyone else have the problem after adjusting valves to specs. they sounded good until warmed up then they rattled like crazy. i would think they would quiet up more when warm. after trying everything i could come up with. I set them both at zero. I even tried zero on intake and 2 on ex. still major rattle.

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reporon,
My valves make a little noise on all my bikes when warmed up which is correct on an non hydraulic valve lifter engine.
Don't run your valves set at zero clearance because you will cause engine problems like burned valves. The owner's manual has the clearances.
Are you sure that the loud noise you hear is the valve rocker arms? The catalytic converter in the exhaust pipe on my DF make a rattle.

here are the pics of the new west eagle seat and mounted GPS, i'll take a ride tomorrow to check the difference of the GPS and my bike's speedometer if the rain holds out.

Attachment 5983Attachment 5984Attachment 5985

my bike also starts n runs quitely untill warm then the valves "tick" , just the nature of pushrods

this made me think , has anyone successfully installed an oil cooler ?

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Originally Posted by hooliganboy

here are the pics of the new west eagle seat and mounted GPS, i'll take a ride tomorrow to check the difference of the GPS and my bike's speedometer if the rain holds out.
Attachment 5984

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Where did you get that seat? Did it come with the springs also? Looks great. I'm afraid to ask how much was it.

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Originally Posted by alleykat

Where did you get that seat? Did it come with the springs also? Looks great. I'm afraid to ask how much was it.

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I second that about the seat.. sweet seat. need info..do tell!

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Originally Posted by alleykat

Where did you get that seat? Did it come with the springs also? Looks great. I'm afraid to ask how much was it.

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i ordered the seat off ebay for $119, it didn't come with the springs. i got the springs from motorcycle superstore http://www.motorcycle-superstore.com...T.ac=SLIsearch , these are the 5 inch springs. i also got the front seat bracket off ebay and had to fabricate the rear seat bracket out of some flatbar i got from home depot. i ordered 2 different brackets for the rear but couldn't make either one work so i had no choice but to build one.

NICE!!!!

Nicely done Hooligan, especially on the spring bracket. I like the bars too.

/M

i think i was a little too ambitious with the 5 inch springs, just a little too much left to right sway, feels a kind of unstable. i think i'm going to try 3 inch springs and see if that makes it better. also, i don't think i'm getting an accurate reading from my GPS. when i switch to second gear at 10mph the GPS says i'm doing 12mph, i glance down while i'm doing 45 and the GPS says 40, i increase speed up to 50 and the GPS still says 40, then at 60 the GPS says 49 and i'm on a 55mph road leaving the car behind me and quickly catching up to the car in front of me. i think i'm just not going to use the GPS and just keep up with the flow of traffic, and if there's no traffic then i'll just do 5mph over the speed limit.

alleykat...that is a very nice looking box you have there.... LOL... after a couple of hours you will have the finest motorcycle that can be had for the money... Congratulations

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Originally Posted by bobber250

alleykat...that is a very nice looking box you have there.... LOL... after a couple of hours you will have the finest motorcycle that can be had for the money... Congratulations

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LOL, thanks. I had taken those pics in case of "concealed damage". Posted them in case some folks were "on the fence" about ordering an internet bike and how it would arrive. The only other thing I've done was to remove the metal "cage". I came down with a nasty cold that afternoon and haven't had a chance to get back on it yet, bummer. I'm going to leave it strapped to the bottom til I finish the "PDI" and change the oil.

TO all, a Merry Christmas!

Thank you GUN ROD, Merry Christmas everybody!!!!!!!!!!!!

Hey all. You guys still recommending a 35t rear gear? Corpus is very flat, nearest hill is a 100 miles away. I'm in the process of re-reading the whole thread again, LOL...

Has everyone had the fuel leaking problem at the gas tank mount ?? Kinda scary. Should these be "fixed" right out of the crate?

just Kream (inner gas tank coat) your tank itll prevent corrosion due to all the alcahol in the gas and prevent leaks from tiny cracks that form in tank

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Originally Posted by DanDaMan

just Kream (inner gas tank coat) your tank itll prevent corrosion due to all the alcahol in the gas and prevent leaks from tiny cracks that form in tank

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I agree with Dan and will do the Kreem or similar process if my tank develops another leak. http://www.kreem.com/fueltankliner.html

I do have a new 3.5 gallon tank that I am going to try to fit soon. The tank manufacturer recommends that the tank be lined.

I do have a new 3.5 gallon tank that I am going to try to fit soon. The tank manufacturer recommends that the tank be lined.[/QUOTE]

Barnone
I,v been researching tanks Attachment 6001casually for weeks , Triumph tanks prior to '71 have a Peanut/Teardrop shape & offer 3+ gallons. The mustang Harley tank is interesting as well.
What have you found?

Gun,
I'll take the tank out the box and take a photo of it. The problem is I will have to move the wiring,etc below the top frame tube because the tank's valley is not that large. Also I will have to cut off the front mount and rear mount for the stock tank so there is no easy way to go back.

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Originally Posted by alleykat

Hey all. You guys still recommending a 35t rear gear? Corpus is very flat, nearest hill is a 100 miles away. I'm in the process of re-reading the whole thread again, LOL...

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i have the 35t sprocket on my bike, although louisiana's pretty flat there are 2 pretty steep bridges that i cross from time to time and i have no problem getting up them.