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Post by posereddie on Nov 13, 2006 7:47:59 GMT -5
[glow=red,2,300] Hello! TS'ing an idling issue I found the pilot jet screwed all the way in (previous owner). Unfortunately, the tip is lodged permanently in the hole. Can this be drilled out successfully? Can the pilot jet (air screw) be ignored? I'm gonna try to drill it out, but tell me now: it's a cone shaped orifice and I'm gonna mess it up. Is the carb body a gonner  ? Thanks!! - posereddie[/glow] |
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Post by posereddie on Nov 13, 2006 7:50:53 GMT -5
Yo! No one can read that! Hey, the tip of the air pilt jet is snapped off in the orifice. I will try to drill it out, but can you tell me how detrimental this circuit is to the SR? If the body is a goner, I may just move on to a replacement w/out screwing w/ it. Too much rain here in NJ!!!!! -posereddie
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Post by hopwheels on Nov 13, 2006 12:59:50 GMT -5
Sounds like a new carby, sorry 'bout that... and the rain.
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Post by posereddie on Nov 13, 2006 20:32:53 GMT -5
hahahaha! Spilt milk. I'll ride the Harley till I find a replacement. Freakin Japanese complicated junk try to keep me up all night, I'm not falling for it! Yo, got a spare body? Hahahaha, this ain't no joke! Thanks for any replies. This board is a great asset.
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Post by hopwheels on Nov 13, 2006 20:40:09 GMT -5
What type carby you got on that thing?
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Post by StewRoss on Nov 14, 2006 1:14:59 GMT -5
I have seen this on the standard carby before. Yes I agree with Gary...drillin it out won't help and it'll probably mess thing up running wise. Get rid of the standard carby and get a 36 - 38mm VMS Mikuni. Once jetted you won't look back... SR  |
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Post by posereddie on Nov 14, 2006 7:14:05 GMT -5
I'm working on the new round slide Mikuni. . . that is, I'm dreaming about it! It seems everytime I get some spare change I buy another bike! I'm littered w/ 'em! I got a spare Amal, may try that first. I am looking for a barebones stock carb body. Everything on mine was solid but for the busted air screw tip solidly hammered into that hole! Gimme some lovin, bros! Any old carbs out there??!!
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Post by miker on Nov 14, 2006 10:06:23 GMT -5
I just had success drilling out some bolts using a slightly different technique... *might* help here, maybe no. I'm encouraged that, since the tip of the pilot is pointy and thus loose in the bore, the stuff you're actually drilling out is above the critical mixture hole.
You can see some of the threads in the hole, right? (i.e. the thing is broken off down inside?) What you do is find a screw with the same threads, chuck it up in a lathe, and face the end off flat. Then carefully use a center drill to start and drill a small hole down the middle of your screw.
Now when you screw your modified screw as far as you can into the hole, voila! You now have an existing concentric hole to use as a drill guide. Take the same size drill and drill in there (titanium drill is nice for stiffness) to put a hole down the center of the broken screw. The guide screw you made will keep you centered. Then, leaving your guide screw in, gradually increase drill size until you've removed most of the screw leaving the body threads behind. Usually the itty bits will pick out or fall out of the threads on their own. Clean it well afterwards of course.
I was working on a bigger bolt, so this could be chancy with a small screw, but its junk anyway right?
miker
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Post by posereddie on Nov 14, 2006 21:29:04 GMT -5
Miker: Thanks! This bit of handyman special is vital. Hope others read your idea. My problem is that the smallest bit of the jet, maybe a 32nd of an inch, broke off in the hole! and EVERYONE warns you about that! It musta been weak, I dunno. But the body's a goner. Yo all! The thing about the stock carb is that Yami and 'kuni went to alot of trouble designing the d**n thing. I'm stickin to it if I can. Idle circuit is VERY important. I'll be a 'kuni expert when i'm through.
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