yamahamer Posted May 30, 2008 #1 Posted May 30, 2008 This was my first time is there any way to get them closer? The 2 on the right is left bank and 2 on left right bank.
V7Goose Posted May 30, 2008 #2 Posted May 30, 2008 (edited) Spec is 1/2" mercury difference (or 1/2 lb - going from memory here, so not completely sure). I don't know that tool and I can't see the gradations clearly, but it looks like those two on the left might be on the edge. You balance the two banks together with the slotted screw behind the choke knob. Edited May 30, 2008 by V7Goose disclaimer
gibvel Posted May 30, 2008 #3 Posted May 30, 2008 Wow, that was a ways off. You used the 2 philips heads to sync 1 and 2 to each other and 3 and 4 to each other, correct? Did you use the flat head screw, just up and behind the choke lever, to sync 1 and 2 to 3 and 4? That's just what it looks like to me.
yamahamer Posted May 30, 2008 Author #4 Posted May 30, 2008 did You Use The Flat Head Screw, Just Up And Behind The Choke Lever, To Sync 1 And 2 To 3 And 4? that's Just What It Looks Like To Me. No! Thats The Answer I Was Looking For. Like I Said First Timer. Thanks Guys!
gunboat Posted May 30, 2008 #5 Posted May 30, 2008 the first time i sync the carbs i had the left 2 and 1 on the right close together. the other 1 on the right was higher. i resync them and got them all together. my problem was i didn't turn the screw up under the choke knob slothead screw ( left side of bike) enough. just keep turning it one way or the other and you will get it right. don c.
Silver Bullet Posted May 30, 2008 #6 Posted May 30, 2008 after the first time or two it gets a lot easer. hope you have fun with it....,,,,, jack
gibvel Posted May 30, 2008 #7 Posted May 30, 2008 No! Thats The Answer I Was Looking For. Like I Said First Timer. Thanks Guys! Good photos of the screws about half way down the page here: http://www.venturerider.org/forum/showthread.php?t=258
sarges46 Posted May 30, 2008 #8 Posted May 30, 2008 Goose....thats the Morgan Carbtune Pro. Thats not mercury but stainless steel bars. I have one and it works great. We save about 90 bucks per bike for sync...thats what the dealer would charge us here! Yammer.....she was out just a little eh.
V7Goose Posted May 30, 2008 #9 Posted May 30, 2008 (edited) Goose....thats the Morgan Carbtune Pro. Thats not mercury but stainless steel bars. I have one and it works great. We save about 90 bucks per bike for sync...thats what the dealer would charge us here! Yammer.....she was out just a little eh. Gotcha, thanx. I use vacuum gauges myself. Just for reference, an inch of mercury is a standard unit of measurement for vacuum, no matter how it is measured. I just couldn't remember for sure what unit of measurement is used in the shop manual. UPDATE: Just for future reference, the shop manual specifies 280 mmHg at idle, and variation between carbs of no more than 10 mmHg or .4 inHg. Goose Edited May 30, 2008 by V7Goose Specifications
KiteSquid Posted May 30, 2008 #10 Posted May 30, 2008 Gotcha, thanx. I use vacuum gauges myself. Just for reference, an inch of mercury is a standard unit of measurement for vacuum, no matter how it is measured. I just couldn't remember for sure what unit of measurement is used in the shop manual. UPDATE: Just for future reference, the shop manual specifies 280 mmHg at idle, and variation between carbs of no more than 10 mmHg or .4 inHg. Goose V&Goose is corrcet. Hg is the symbol for the element Mercury. More info at Wikipedia by clicking HERE
sarges46 Posted May 30, 2008 #11 Posted May 30, 2008 I was thinking that if mercury got anywhere near me and the bike....the bike would eat it long before I figured out how to stop it! Morgan was a no brainer for this "schmoe"...lol.
Yammer Dan Posted May 30, 2008 #12 Posted May 30, 2008 I had mecury sticks before I knew about Carb-Tune They work OK but Carb-Tune is so much easier
dharnie Posted May 30, 2008 #13 Posted May 30, 2008 That link to the carb sync instructions is great! I bought the vac guages from JCW for around $50 months ago and was a little hesitant about maybe screwing something up on my ride. But now I think I will tackle it this weekend! Thanks for so much good input on this forum! The best!
V7Goose Posted May 30, 2008 #14 Posted May 30, 2008 That link to the carb sync instructions is great! I bought the vac guages from JCW for around $50 months ago and was a little hesitant about maybe screwing something up on my ride. But now I think I will tackle it this weekend! Thanks for so much good input on this forum! The best! I use that four gauge set myself, and I think they are very good. But I still advise that you make sure they are all reading equal first. They are probably just fine now, but checking is worth while. The instructions tell you how to do this, and to adjust one, you just pull off the front glass and reset the needle (do NOT try to turn the needle, as you are most likely to mess up the internal spring - pull it off and replace in the correct position). The easiest way to check all gauges together is to make a small manifold out of a piece of plastic pipe and nipples from the hardware store. You can also just use a T connector to hook two of them to one vacuum source at the same time; use one as a reference and then swap in a different gauge one at a time to see that all four are matched. If you don't want to mess with any of that, try this: after you get your four carbs balanced, switch all the hoses around to see if they are all still balanced when hooked to a different gauge. Goose
dharnie Posted June 2, 2008 #15 Posted June 2, 2008 If you don't want to mess with any of that, try this: after you get your four carbs balanced, switch all the hoses around to see if they are all still balanced when hooked to a different gauge. V7Goose - I came here to post my results with the attached photos of before and after - but I forgot to switch the hoses - I will do that tomorrow. But the engine idles soooo much better and what I thought was a fast bike got even faster! Thanks for the help!
KiteSquid Posted June 2, 2008 #16 Posted June 2, 2008 (edited) I bought the vac guages from JCW for around $50 months ago..(snip) The 4 gauge model is about $80 now...... The Morgan Carbtune Pro 4 column with tool pouch is £62 (or $121.59 at today's exchange rate.) The gauges do cost less, and probably much less once you figure in shipping from the UK on the Carbtune, but which is more accurate???? Looking at the photo form Carbtune .co.uk, the Carbtune pro is graduated in 0.25 cmHg, but I could not read the scale for the gulage at JC Whitney, but they say in the write up that the Gauges are calibrated to measure 0-30" (0-760mm) Hg for vacuum ... NOTE: I think the meant to say that the gauges are graduated, not calibrated, as calibrating gauges would cost more than $79.99 and has an expiration date. But trying to adjust four guages to point at the same point, or trying to get four columns of Hg (or SS Rods) to line up, my money is on the manometers over the guages.... BTW the dealer where I purchased my bike at and had my first service performend at has a digital carb sych tool, but I bet it cost well over $400.... but it worked GREAT!!!!!!! If nobody within riding distance has one that will let me use it, I will probably build a oil column manometer when the time comes. Edited June 2, 2008 by KiteSquid
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