Results 1 to 10 of 6337
|
|
Threaded View
-
#11 Re: Dong Fang DF 250 RTB Bobber Information
03-13-2013, 03:17 AM
CRELOW Thats the same exact backfire I had. Caused by a bad air fuel mix and then an explosion of un burned gas that stops the crank/ it isn't too healthy for the engine when it explodes during exhaust cycle and stops the bike. Does it go away after its warmed up good? is your plug black and fouled/ bad spark could cause this. Unburned gas is exploding... from too lean ( too much air) or too rich ( too much fuel) either condition can cause backfiring thru carb. many web sites to help tune this pumper carb. But some trial and error is seldom avoided. Once you get it right it will run as smooth as silk
Warm the bike
Air fuel Mix screw adjust use a 1 inch long screw driver flat blade end from an interchangeable screw driver. start with the air fuel mixture screw on the side of the carb facing the engine.
Idle screw tweak( your idle sounded way high unless you were working the throttle
New gaped NGK plug
Lastly
Make sure idle jet isnt clogged
Valves could be out of adjustment
If you cant get it tuned, get help!Goodbar with Blue Fanger DF 250 RTB
| « Previous Thread | Next Thread » |
Similar Threads
-
Help ID this customized chinese bobber please?
By fonzerelli in forum StreetReplies: 6Last Post: 01-16-2022, 01:39 AM -
DD350E-2 Bobber
By xacarrere in forum Manufacturers and ImportersReplies: 2Last Post: 08-28-2015, 12:03 PM -
Bobber Bikes
By Geronimo in forum SidecarsReplies: 12Last Post: 07-20-2011, 05:02 AM -
my 2nd 16 inch bobber
By Geronimo in forum SidecarsReplies: 3Last Post: 09-13-2010, 11:10 AM -
JH600B Information Wanted
By blazeafar in forum Welcome to MCM!Replies: 1Last Post: 04-29-2008, 12:38 PM
| Tags for this Thread |












What matters more to you on an 18+...
12-25-2025, 07:20 PM in Welcome to MCM!