New WR400. Carb problems
Posted July 04, 2008 - 09:53 AM
Posted July 04, 2008 - 10:35 AM
For cleaning the carb, completely disassemble it except the TPS (Black thing) - don't remove that. Then soak it all in brake or carb cleaner, blow all passages out with compressed air.
Also clean the diaphram for the AP and all associated passages and the pin that moves the AP
Did you clean your air filter at all?
Are there any significant elevation changes from where the bike was to where it is now...
Posted July 07, 2008 - 07:01 PM
Posted July 07, 2008 - 07:03 PM
Posted July 07, 2008 - 07:12 PM
My petcock is also leaking. What could this be? Bad seal? Or do i need to buy a new cock? It's leaking down into my carb and flooding it everytime the bike sits. Damn. Thanks guys
Xquce my bad english but what is petcock
Posted July 07, 2008 - 08:07 PM
The carb should'nt overflow even if the fueltap is on constantly.
Sounds like needle valve aint closing properly.
Maybe you should check your floaters...?
Posted July 08, 2008 - 04:39 AM
you can look up here at TT how to properly adjust the fuel screw on the bike once you have verified everything else.
Posted July 08, 2008 - 02:12 PM
Posted July 09, 2008 - 07:44 AM
Sounds like a clogged slow/pilot jet. When you cleaned the jets are your sure you got them cleared completely? How many turns out in the idle screw?
Yep, i found tht the pilot jet was still clogged. Opened her up, and it was still idling terribly, but it would run w/out the choke. I opened up the fuel screw until it ran well. I believe it's nearly 3 turns open. Is this too much? The bike is running pretty much normal at this point, but it seems a little excessive to have to open the fuel screw so much. Is there something else that could be causing the need for so much fuel? I changed the oil/filter and spark plug. What is a good baseline measurement for chain slack? It gives a measurment in the manual, but doesn't say where to take the measurement from. Almost there!
Posted July 09, 2008 - 08:59 AM
It gives a measurment in the manual, but doesn't say where to take the measurement from. Almost there!
From the top of the rear bolt holding down the chain slider on the swingarm.
Posted July 10, 2008 - 03:46 AM
3 is fine but if it needs more than that you should go with a larger PJ
I believe it's nearly 3 turns open. Is this too much?