i took some pic. when i did it, i'll have to dig them up at home.
cdi i got off ebay. other than that i go to berts or chaparral.

 

bubba 1170,
pm you

 

I don't know what happened to my reply but ever since I did all of the mods to this I can't get this thing to idle with a darn. I have replaced the pilot and main jets(12.5 and 80). Do I need to replace anything else on the carb? Correct me if I'm wrong but if you turn the air/fuel screw in it allows for fuel. I have that thing screwed in almost all the way. If I back it out the engine revs high! I suppose I could have a air leak since when I did the slide mod I didn't replace any gaskets......

 

does it idle better if you apply all or some choke. if so then either you have an air leak or the idle mixture is incorrect (too lean). if it idles rougher when the choke is on then its too rich. if you are within 1/2 turn of having the idle mixture screw being all the way in (seated) then you have it in too much. I have found that between 1 1/2 and 2 1/2 turns (counter-clockwise) from fully seated works good. did you replace the gaskets (bowl, slider cover and manifold) when you reassembled. I found especially that the slider cover gets damaged when removing.

you should adjust the idle mixture screw both ways (in and out) until you find the point where the idle RPM is the highest possible for the given idle speed screw setting. this is where the fuel mixture is at its approx. 14.7:1 ratio. I adjusted mine in until the machine ran rough and then out until it ran rough and then chose a spot right in between the points. make sure the machine is warm and the choke is open (off) when doing this. you can then adjust the idle speed screw to get the idle RPM to where you want it. if the idle mixture is too rich or too lean then the engine should not run at its max. idle RPM and will probably be idling rough.


Here are some really good sites on carb. theory and tuning.

http://www.aircooled.net/gnrlsite/re...es/jetting.htm

http://justkdx.dirtrider.net/carbtuning.html

http://www.dansmc.com/carbs2.htm

good luck

 

did you get it running?? how about the clutch mod.

 

Finally got the chance to order gaskets for the carb. On the needle there is a clip. Right now it's on the middle slot. Is that ok? I tried to take it out this weekend and couldn't get it started. It kept flooding. I'm assuming after taking the carb apart, again, I'm getting air leaking into it and that's why I have to have the air/fuel mixture screw almost all the way in, therefor sending too much fuel on the start up.......

 

hey guys if all else go to raptor80racing.com and talk to the guy there he is cool and really helpfull my sons raptor 50 will smoke any stock 90 or 80 with me on it.

mike

>>>>>>>>>>>>&g t;>>>>>>>>>

06 yfz 450
06 raptor 350
06 raptor 50

 

by the way i forgot to ask when you rejet the carb you might have to adjust the fuel mixture neddle that is behind the silver plug that you drill out on the left side of the carb next to the idle screw. i think that you screw it in about a half turn but i dont remember.

mike


>>>>>>>>>>>>&g t;>>>>>>>>>>>

06 YFZ 450
06 RAPTOR 350
06 RAPTOR 50

 

i was just wondering if i need any special tools to do the clutch mod.

 

no special tools needed.