Posted 30 April 2006 - 05:54 PM
Posted 30 April 2006 - 06:58 PM
On pavement especially, your front wheel should be able to pop up fairly easily with just the use of the throttle in 3rd. If not, then something is wrong. Get your jetting sorted out and then check the valves to make sure they're properly adjusted, etc. If worse comes to worse, find out how much leakdown their is when the engine is both cold and hot to check the health of your engine.
Posted 30 April 2006 - 07:07 PM
Altitude and temperature and humidity. Air filter, making sure that the carb intake boot was changed, both air box pop outs were removed, holes in the side cover are cool for some. Smog pump removed and capped. Intake vacuum port plugged. Float level at 16mm ~16.5mm. Exhaust muffler tip being a HRC or stock tip drilled out to 2".
Tons of info here: http://www.xr650r.us/
Making more horsepower Here: http://xr650r.borynack.com/
Between the two of those links you will find a ton more.
All About the XR650R
Posted 30 April 2006 - 07:32 PM
as far as the leaddown test is concerned i am pretty sure the motor is great. i bought it used frfom a friend of mine who only wore out one tire with the bike and that was all street miles. so i would say it has 1000 miles on it
Posted 30 April 2006 - 07:45 PM
After you change the clip position, check to make sure your fuel screw is properly adjusted as that can affect your off idle snap to some degree. See how she runs like this, then cover the airbox holes with duct tape and see how she runs with the holes covered.
Are you running a stock header and cannister with HRC tip or ???
Posted 01 May 2006 - 01:21 AM
The thing is that the stock carb doesn't have instant throttle response. Thus the popularity of aftermarket carbs like the Edlebrock and Mikuni TM-40. I use a Mikuni TM-40 from Sudco.com. Save your $ for one of these, it will make you happy.
Posted 01 May 2006 - 03:00 AM
Posted 01 May 2006 - 08:23 AM
Posted 01 May 2006 - 08:40 AM
Posted 01 May 2006 - 09:22 AM
Posted 01 May 2006 - 11:03 AM
Posted 08 May 2006 - 11:04 PM
seems to have way less holes then mine does. could it be possible that the previous owner actually went overboard on the holes. maybe i should buy a new sidepanel and make it look closer to that picture on xrsonly
Posted 08 May 2006 - 11:12 PM
settings i tired that didn't work.
70s 2 turns third clip, 180 main
70s 2 turns fourth clip 180 main
70s 2 turns fourth clip 175 main
70s 1 turn fourth clip 175 main(current setting) when changing from two turns to one turns it helped the dead spot a decent amount so i am thnking maybe the needle is kinda now bleeding over and affecting it. i kinda changed to many things at once sometimes so it was hard to tell what actually worked. i do know the 175 main is for sure what i need caus that had way better performance then the 180.
Posted 09 May 2006 - 06:17 AM
With the needle, you can fine tune it by adding very thin washers below the clip to set its height between clip positions if needed
Posted 09 May 2006 - 04:42 PM
Though where you are now a slightly rich main usually gives you a wicked mid hit,and most people don't ride around at full throttle so it works,BWB680 may be an exception i've seen his web and photo's WFO all the way ..
I want to change from the 3rd clip to no 4 on my needle,just for a test but that flippin gasket on the top of the carb seems bigger each time i am in there,and it only just fit last time.
Posted 09 May 2006 - 06:48 PM