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Old 03-18-2013, 03:18 PM   #91
Kt-88
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Quote:
Originally Posted by blaine.hale View Post
Well my Mikuni's are on the way.
I'll be sure to post results.
I'm loving mine more and more.
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Old 03-19-2013, 01:14 AM   #92
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Blaine, for rubber on the airbox side, these work very well for adapting the mikunis
http://intakehoses.com/Merchant2/mer...egory_Code=RSP


I think you want the 2.25" ID x 2" ones. I saw them on this thread and got some and they seem like just the thing.
http://www.advrider.com/forums/showt...php?p=19235494
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Old 03-19-2013, 04:05 AM   #93
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http://amalcarb.co.uk/mk-ii-concentr...-adaptors.html

The 2928 / 123 adapters fit a 40 mm stub , and have a 28 mm center section in the bore, so they can be ground out to match 32/34 mm Mikunis to the inlet stubs on the head.

They also set the carb back a little, and depending on your set up with either Bings or Mikuni's this can sometimes work a little better too.

Wont cost much to try.

I also have around a dozen settings for Mikunis, but as I don't know the state of the bikes they were developed for I don't see much point in detailing them.


The cables are easy to alter too - the adjuster that screws into the top of Bings screws straight into the Mikunis, and the ferrule that fits into it unscrews from the end of the cable. So you can remove the ferrule, cut back a little off the outer sheath , replace it then replace the nipple with one to suit the Miks. I added a second adjuster up at the throttle end too, to make it easier to adjust the cables.

Amal used to have separate four and two stroke needle jets, difference being small bleeder holes in the jets. They now supply and recommend the bleeder jets for both four and two strokes, and one guy has picked up on this for the Mikunis too.
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Beemerboff screwed with this post 03-19-2013 at 03:45 PM
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Old 03-19-2013, 07:15 AM   #94
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Quote:
Originally Posted by ontic View Post
Blaine, for rubber on the airbox side, these work very well for adapting the mikunis
http://intakehoses.com/Merchant2/mer...egory_Code=RSP


I think you want the 2.25" ID x 2" ones. I saw them on this thread and got some and they seem like just the thing.
http://www.advrider.com/forums/showt...php?p=19235494
Definitely ordering a set of those today. It looks like the measurement for 32mm mikuni is 2.25" ID x 2" but I'll be on a 34mm mikuni. Any idea if that tube will still work and stretch or if I need something ever so slightly larger?
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Old 03-19-2013, 10:53 AM   #95
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Quote:
Originally Posted by blaine.hale View Post
Definitely ordering a set of those today. It looks like the measurement for 32mm mikuni is 2.25" ID x 2" but I'll be on a 34mm mikuni. Any idea if that tube will still work and stretch or if I need something ever so slightly larger?
I get them at the local hardware store.
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Old 03-19-2013, 12:23 PM   #96
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Quote:
Originally Posted by blaine.hale View Post
Definitely ordering a set of those today. It looks like the measurement for 32mm mikuni is 2.25" ID x 2" but I'll be on a 34mm mikuni. Any idea if that tube will still work and stretch or if I need something ever so slightly larger?
Hey Blaine, keep in mind to not crush the oem elbows when tightening down the clamps. I did it, and then added a metal ring that I have no idea where I got, inside the elbow to kept it from crushing. Just like the elbow into the airbox has one. Well, maybe not on the R90??
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Old 03-19-2013, 12:34 PM   #97
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Originally Posted by hardwaregrrl View Post
hey blaine, keep in mind to not crush the oem elbows when tightening down the clamps. I did it, and then added a metal ring that i have no idea where i got, inside the elbow to kept it from crushing. Just like the elbow into the airbox has one. Well, maybe not on the r90??
+1
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Old 03-19-2013, 04:46 PM   #98
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2 1/4" ID fit my 35mm keihins perfectly. You can get silicone intake elbows that are very hard to crush in any color as long as it's glossy. Oughta look a bit better than my radiator hoses.

http://www.roadraceengineering.com/hoseandclamps.htm



From the website:

Quote:
Tuning Tip: Red is a good color for all around performance, however with a big turbo blue gets upwards of 10 hp, unless you have stock cams, then only 5 hp. Purple is best for bottom end power, mix with red for excellent mid-range. For NT cars, shift all recommendations one hue towards a warmer color. Yellow hose should only be used on high compression NTs or turbo cars with welded differentials. Proper Sticker Tuning can be a successful work around for any of these concerns. ;-P
Crap! I've completely ignored sticker tuning! No wonder Jenna's so much faster than me. I bet I'd pass her on the straight-aways if I get one of those 'Jon Stewart for President' stickers.
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Old 03-19-2013, 08:36 PM   #99
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Quote:
Originally Posted by blaine.hale View Post
Definitely ordering a set of those today. It looks like the measurement for 32mm mikuni is 2.25" ID x 2" but I'll be on a 34mm mikuni. Any idea if that tube will still work and stretch or if I need something ever so slightly larger?
I just checked thorugh my emails and those are the ones I got (#RS225X20X25)
Page 105 of the Sudco catalogue lists the dimensions of the VM series carbs- VM32 and VM34 have the same ODs on the the in and out spigots (58mm and 40mm).
They fit the spigot on my VM34's very well- a nice tight fit before hose clamping- I didn't have time to properly hook them up to the elbows before I left Australia last year but from what I could tell it seemed like it was going to be fine (as it worked well for elite-less).
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Old 03-19-2013, 08:48 PM   #100
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Originally Posted by supershaft View Post
I get them at the local hardware store.
in elite-less's thread I linked to he said he had trouble finding an exact fit with local hardware store plumbing supplies and this was the case for me too.

These fit well and are good quality rubber and finish.

here is one of elite-less's images-
38mm carbs so a wider fit to carby but you get the picture.

On a classic black bike, personally I like the black rubber rather than the glossy coloured silicon.


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Old 03-19-2013, 11:16 PM   #101
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[QUOTE=ontic;20989077]in elite-less's thread I linked to he said he had trouble finding an exact fit with local hardware store plumbing supplies and this was the case for me too.

These fit well and are good quality rubber and finish.

here is one of elite-less's images-
38mm carbs so a wider fit to carby but you get the picture.

On a classic black bike, personally I like the black rubber rather than the glossy coloured silicon.











I forgot about a lot of you guys fitting such small carbs. There's a real common pipe reducer that fits 38mm Mikuni's real well. I still think 32 and 34mm Mikuni's are too small for 900's and 1000's. If you want more bottom end than 32mm Bings, 38mm Mikuni's have it in spades. AND a lot more on top too!
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Old 03-22-2013, 11:40 AM   #102
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Mikunis just came in. The wrong rubbers were sent to me from intakehoses.com but they just shipped out the correct ones.
I'll try to mount up the carbs this weekend but I'm not firing up until the airbox is hooked up properly.
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Old 03-22-2013, 12:54 PM   #103
Kt-88
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Quote:
Originally Posted by blaine.hale View Post
Mikunis just came in. The wrong rubbers were sent to me from intakehoses.com but they just shipped out the correct ones.
I'll try to mount up the carbs this weekend but I'm not firing up until the airbox is hooked up properly.
Good idea. I've been running mine with pods and I'll have to re-screw with it all once I get around to putting the intake hoses on.
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Old 03-22-2013, 03:02 PM   #104
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I'm wimping out and letting MSP jet mine. It might be a few weeks, but I'll let you know how that goes. It might save you the hassle and you'll get a HP graph too.

At least you've got the option of doing them yourself since Jenna and Fred have a bunch of mikuni jets. I never even thought about that. I'd have to buy a box of Keihin jets to jet mine and those things run $4-5 each.

I got a ColorTune a little while after your tech day. I had too much fun playing with Jenna's. I bet you could jet the carbs with that alone. Let me know if you want to borrow it. Good luck.
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Old 03-22-2013, 04:55 PM   #105
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Bought these from thealphamoto.com.
They came with the following setup:
Slide - 2.5
Needle - FJ6DH4 2nd position
Main - 230
Needle Jet - 15960-2
I don't think I saw an air jet
There's a small jet next to the main that looks like an idle jet : 035
That jet was so tiny, it was hard to read.

The carbs also came with a needle jet and main jet with instructions to install them. So I did.
Main - 210
Needle Jet - 159 P-0

None of that system makes any sense at all but it looks to be pretty close to what Bill with Rocky Point recommended.
Also came with some pretty decent cables. You can adjust them mid way on some barrels or adjust them at the carb. Not bad.

I'll finish install and fire up when the rubbers come in to mount it up. Should be Monday or Tuesday.

*It's possible I didn't read some things entirely accurate in my low light house.
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