Okay, bear with me on this one because it's a bit technical but I really need some expertise, cause I'm stumped ! I'm in the middle of loosening the tiny little screws in the throttle slides of my dual carbs to get to the needle position. All went well, except for one of the two screws on the primary carb, I stripped the damn thing !! Now I have an extra set of dual carbs for parts, so I managed to loosen the said screws on the trottle slide for the primary carb on the spare set, so I can switch the primary throttle slides and Bob's your uncle. BUT... The slides aren't the same ! Left slide is from my primary carb, right slide is from the spare. Notice the extra cut-out on my slide, which the spare doesn't have The cut-out lines up with a channel in my carb that also the spare carb does not have. Below are the pictures of how it lines up in my original carb. The cut-out leaves the channel open when the slide is closed, once you give it enough throttle and the slide is raised enough the channel becomes blocked The channel I'm referring to is the one in the bore of the slide, picture is taken from airbox side This one is taken from the top, you can sorta see the cut-out leaving the channel free when the slide is all the way down WHAT THE HELL DOES THIS CHANNEL DO ?!? Why have a channel that ends in the top of the slide when the slide is down? I can't figure out where it leads unfortunately... Some help would be awesome !! Cheers
thats what previous owners do when they think that an extra slot will eliminate sticky throttles. that or you have something else going on it can also be that the slides were damaged there and well the damaged peice was taken out I have a gouge on my slide but its harmless it was caused by a sucked throttle flapper I have a homemade one installed now(i dint make it but its made well) just put it back together and fire up the bike see what happens if you have a sticky throttle then well help you out so did you get the needles out?
No there's something else going on, I'm dealing with channels and holes that the one set of carbs does have, and the other does not. No unfortunately I couldn't get one of the needles out since I stripped one of the screws. It's not complete stripped yet so I'm trying drilling into it from the other side with a tiny drill-bit in my Dremel to try to relieve some of the tension before I try loosening it one last time
This is the 'later' part, I've been running it like this ever since I got it and have always left it ever since I first tried and failed because I didn't want to strip them. I want to finally do it right
DO NOT attempt to drill out that screw. If anything you want to remove the screw head to relieve the pressure. Once the head is gone the rest of the thread will spin right out. If you munch the threads in the slide you now have a nice paperweight
thats to bad man I thought you said you had trciks you knew to take those guys out it worked for me and they had no head on them bummer patience man beleive that hole you see and the channel thats been done for a reason it has to do with what Im talking about Im almost positive in any case good luck x2 dont drill the slide! you we worried about putting the slide in a vice with a rag what on earth would make you want to drill it! steve is here all is well later good luck man patience
Fuck yeah !! I love my Dremel ! Check this out Drilled into the screw, managed to loosen it and got it out. Hole goes straight into the screw, thread in the slide is 100% undamaged I love being stubborn, haha
no shit you know me! but dealing with the carb im like mama grany slow as hell even put gloves on jajaja
well you showed us care to show what tip you used?????????????? doesnt count unless you show pics of tools used yeah thats right! good job heres a beer on me
Something to look at while you're sipping on that beer Used a 1.2 mm drill-bit and the flexible thingy to get into tight spots I think I'll pop open a cold one myself, cheers !
I thought it was small enough , thanks man ! Now the whole dilemma with the different carbs is solved, both needles on my own carbs are loose, just put in some new screws (flathead instead of philips this time ) and voila
Yeah I just thought of that too. I'll swing by a hardware store tomorrow to see if they have any little allen bolts with the correct size Are the needle clip positions stated in the manual referred to as starting from the top of the the needle? i.e. the leanest state (needle as low as it gets) would be 1st groove?
#1/top groove is the leanest. Usually have five grooves. Bottom being the richest. Start in the middle and tune from there. I remember jetting my XL600 and what a PITA removing the carbs was. One tip is to use a heat gun or hair drier on the intake boots to soften them up. A shot of WD40 and the carbs slide on like butter.
Thanks I pretty much have the carb removal down by now, but it's still a pain yea. As it turns out my needles were in the right position (as listed in manual) all along, but atleast now I know And as we all know