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  1. #4811 Re: Dong Fang DF 250 RTB Bobber Information 
    C-Moto Guru ben2go's Avatar
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    Quote Originally Posted by Roadkill View Post
    I don't know why they boiled chains, but somwhow it just seems reasonable. I sprayed mine with WD40. I will probably use silicon spray the next time unless someone tells me that 10w40 works as well. Thinking that silicon will work well over temp, not attract dust and crap, and possibly not fling like oil.
    We boil old chains to get them to free up.Once they move,we soak them in oil overnight.Before reinstalling we spray them down with a thin grease,usually lithium.
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  2. #4812 Re: Dong Fang DF 250 RTB Bobber Information 
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    Those who are trying to save us from ourselves say teflon is bad - cancer in rats or something. I don't much care about sick rats, so is this still available?
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  3. #4813 Re: Dong Fang DF 250 RTB Bobber Information 
    Senior C-Moto Guru barnone's Avatar
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    Quote Originally Posted by Roadkill View Post
    Those who are trying to save us from ourselves say teflon is bad - cancer in rats or something. I don't much care about sick rats, so is this still available?
    Google "dupont teflon spray chain lube"
    Something about teaching a man to fish...
    Vince
    2009 Suzuki TU250X
    2018 Dong Fang DF250RTG
    2019 Ice Bear CT70 Clone
    2020 Ice Bear 150cc Scooter
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  4. #4814 Re: Dong Fang DF 250 RTB Bobber Information 
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    Quote Originally Posted by Roadkill View Post
    So for me a chain is sort of from the past since I've been on shaft drive for a while now. Last time I ran a chain I used a little squirt can with 10w40. What are yall using for a chain oiler and what sort of oil?
    I just use commercially available chain oil. Once I oil it and ride it, some oil winds up on the back of my t-shirt. Had to throw a way a t-shirt because of this LOL. Which is why another member here a while back suggested a dry lube alternative. Wish I knew that before I bought my can of wet lube.
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  5. #4815 Re: Dong Fang DF 250 RTB Bobber Information 
    Senior C-Moto Guru barnone's Avatar
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    Not that I think that we need an oil cooler on our DFs but has anyone tried this cooler?
    http://item.taobao.com/item.htm?id=1589157186

    While I was on taobao I looked for a big bore kit and found this one that claims 250 CC but only 67 mm bore.
    Cheap enough at $28.10 plus agent fees and shipping.
    http://item.taobao.com/item.htm?spm=...id=15238969020
    Vince
    2009 Suzuki TU250X
    2018 Dong Fang DF250RTG
    2019 Ice Bear CT70 Clone
    2020 Ice Bear 150cc Scooter
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  6. #4816 Re: Dong Fang DF 250 RTB Bobber Information 
    Senior C-Moto Guru barnone's Avatar
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    From Soberlife:

    "I need help... have a 2012 donfang mc-d250rtc. My headlights will not function. The running light is on but when i start the bike the headlights do not switch on. the only way I have lights is if i switch on the highbeams... then only the left side comes on...."

    He PMed me but maybe someone that has had this problem knows the answer?

    Sounds like the low beam is not working.

    I'd check the bulb first.
    Vince
    2009 Suzuki TU250X
    2018 Dong Fang DF250RTG
    2019 Ice Bear CT70 Clone
    2020 Ice Bear 150cc Scooter
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  7. #4817 Re: Dong Fang DF 250 RTB Bobber Information 
    C-Moto Guru ben2go's Avatar
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    Quote Originally Posted by barnone View Post
    From Soberlife:

    "I need help... have a 2012 donfang mc-d250rtc. My headlights will not function. The running light is on but when i start the bike the headlights do not switch on. the only way I have lights is if i switch on the highbeams... then only the left side comes on...."

    He PMed me but maybe someone that has had this problem knows the answer?

    Sounds like the low beam is not working.

    I'd check the bulb first.
    There's something in this forum somewhere about re-pinning some wires in a connector to get the low and high beam to work properly.I would start at the bulb and work my way back to the switch and then to the fuse block.
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  8. #4818 Re: Dong Fang DF 250 RTB Bobber Information 
    Senior C-Moto Guru barnone's Avatar
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    0202141058-01.jpg

    http://www.ebay.com/itm/360834770780...84.m1497.l2649
    Max head temp I have seen so far is about 380 F.

    IMG_2363.jpg


    Also have one on my Ural where I have seen head temp of 422 F.
    The temp on both bikes are highest on high speed runs () and go down when idling at a stop.

    Supposedly danger temp is 500 F.

    I ordered one of the oil coolers off Taobao to try.
    http://item.taobao.com/item.htm?id=1589157186
    Vince
    2009 Suzuki TU250X
    2018 Dong Fang DF250RTG
    2019 Ice Bear CT70 Clone
    2020 Ice Bear 150cc Scooter
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  9. #4819 Re: Dong Fang DF 250 RTB Bobber Information 
    C-Moto Guru bowtiewagon's Avatar
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    Must feel good to be down in FL barnone. It has been cold as heck around here as of late, I mean really for Houston, snow flurry's iceing, and just downright ugly. Haven't been able to ride at all these past couple weeks and it sucks. Hope the weather changes soon.. or I am gonna start the bike in the house and tool around the living room with it.
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  10. #4820 Re: Dong Fang DF 250 RTB Bobber Information 
    Senior C-Moto Guru barnone's Avatar
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    Even been a little cool here but still ok for riding.
    I adjusted the valves and checked the timing on my 2012 DF today. The timing was right on but don't have a way to check the advance amount but it did move when I revved the engine. She still doesn't seem to have the speed of my old 2010. I even tried a 108 main jet but no change in performance.

    Later I adjusted the air mixture screw and that seemed to help.
    Last edited by barnone; 02-10-2014 at 12:21 AM.
    Vince
    2009 Suzuki TU250X
    2018 Dong Fang DF250RTG
    2019 Ice Bear CT70 Clone
    2020 Ice Bear 150cc Scooter
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