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what style or model is this mikuni? (Read 209 times)
ThumperPaul
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Re: what style or model is this mikuni?
Reply #30 - Yesterday at 04:59:11
 
To adjust the clutch cable, you generally make small adjustments at the lever/perch.  You’re fine if you have it set with a little free play as previously mentioned.  Large clutch cable adjustments would need to be made at the other end using the “large adjustment” adjuster.  You generally would not make the adjustment here unless you have run out of adjustability at the lever/perch.  That said, some people prefer to adjust down there rather than at the lever/perch.  When you run out of adjustability at both ends, your cable needs replacement.  In reality, the cable would likely fray or break before you run out of adjustability at both ends.

I’ll let you work out the non-working choke with JOG.  If y’all didn’t clean that area and circuit, it’s probably just stuck and not broke.  You could/should clean it up, reinstall, or install the choke off your old carb.  You gotta figure out why it’s not working - is it because it’s dirty in there? Or because the choke is just toast.  If it’s dirty in there, neither choke may function properly.  Putting a good clean part in an infected hole = dysfunction.

With a short open exhaust pipe without baffle, it’s virtually impossible to eliminate all afterburn (snap crackle, pop, bang, boom, pow) on deceleration.  JOG said it was jetted for a Dyna muffler, and that’s probably fine.  BUT has the “white spacer mod” been done on the slide needle?  The best known fix for reducing afterburn on deceleration is to raise the needle by reducing the thickness of the shim (white spacer) or replacing the white spacer with a “couple” thinner washers.

More here —> http://suzukisavage.com/cgi-bin/YaBB.pl?board=tech;action=display;num=1104205157

I’m still not grasping why it was felt necessary to lube the slide.  Was it just a random question or was there some kind of perceived performance issue (perhaps poor throttle response) that you thought lubing the slide would alleviate?  When you had the carb taken apart, did the slide show wear - exposed bare metal where the black coating was worn off?  Again, I’m unclear why the lube job.  Even with a good slide with its nice slick black coating intact, the slide can stick if the slide bore is dirty from like old gas varnish buildup on the walls.  Same analogy - nice clean part trying to go up and down in an infected hole = dysfunction.  Lubing the good part won’t cure the infection.
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tippytop
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Re: what style or model is this mikuni?
Reply #31 - Yesterday at 22:16:11
 
yeah great advice pual, we took the float cover off and clean all that thouroughly and buttoned her up....when i was leaving...and this was my first lesson on a carb of any sort...i noticed the slide mechanism and figured it would be a lubed part so i asked...and we had a case of beer down us so he just haded me the can of spray and off we go.  lol  it went soemthing like that.  
I'm down with getting into the spacer part and needle positioning....i may as well pull it yet again if i'm going to clean out the choke to diagnos that problem...
Any way to aovid emptying the tank every time i pull the carb?  and getting the rubber sleeve over that airbox after being in the intake to engine is not an easy task....kids aren't allowed around when that moment is occuring.  lol
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Need more spped and less backfire! Smiley
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DragBikeMike
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Re: what style or model is this mikuni?
Reply #32 - Today at 01:35:43
 
Sounds like you guys have pretty much whipped that carb into submission.  Congratulations.  Who's who in the picture?
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JOG
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Re: what style or model is this mikuni?
Reply #33 - Today at 02:49:37
 
Yeah, I'm guilty of being a dumbass. Tippy did the work, we cleaned the bowl, proved the jets were open, and I thought it was a fully functioning carburetor. The slide ,that whole part, we didn't open. He was getting ready to go, and reached in and slid the slide up and asked
Should we lube this?
Yeaaaahhh,, well,, I didn't remember how fingerprints were oil and could cause a slide to hang up.. And dang if I didn't hand him a can of spray lube..
Dammitall..
Totally wasn't thinking.
We're supposed to go riding. There's a road just loaded with curves not far from here. I've been wanting to hit it on this bike, and I'm hoping to get Tippy running Right and show him that road.
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ThumperPaul
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Re: what style or model is this mikuni?
Reply #34 - Today at 04:08:03
 
Sounds like a plan, and it sounds like a thorough cleaning is in order and a white spacer mod.  Gotta get that carb cleaner in every passage, let it soak, use carb cleaning brushes in the passages where you can, and blow it out with an air compressor with a small nozzle.  But y’all probably know that.

The “spray lube” y’all applied to the slide was probably washed off with gas sucking through there and sucked into the combustion chamber within the first 10 minutes.  It probably ran a little rough, searched to find even idle, maybe a little smokey, and the spark plug might be a little fouled depending on what kind of “lube” y’all used.

Touching the slide with your oily fingers won’t hurt it, but some good rubber gloves are always highly recommended when playing with carb cleaner and other toxic stuff.  Likewise, a 12-pack of beer and riding probably isn’t a good idea.

The petcock valve has an “off” position.  Try using that nifty feature instead of draining the tank.

I still can’t figure out how you “notice the slide” after you’re on the bike and the carb is fully assembled.

I’ll step away from the keyboard now.  Good luck guys.  Over and out!
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