The New And Improved Unofficial R65 Forum V2
Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: Lucky_Lou on July 08, 2009, 02:47:39 AM
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Is there an adapter out there for attaching the pipes when balancing the carb,s ? The kit i got only had a tapered rubber end and the gauge bounces like jelly on a plate im thinking of making one of the homemade tube thingy.s but cannot figure out how im going to attach it.
ta Lou
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The tubes just push on Lou,i made one about 18 months back,it works fine,but my recent carb tuning has been done using the "ear"method,just remove the blanking screws and the 3/16 tube pushes on,no problem,unless your carbs are different to the ones on my R65LS.Julian.
This is the one i made,
(https://bmwr65.org/smf/proxy.php?request=http%3A%2F%2Fi77.photobucket.com%2Falbums%2Fj49%2Fmazan_2006%2FDSCF0492.jpg&hash=afdd898c0b767295c31bb38f128de4248ce2d599)
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I'm not sure that I understand your question, Lou. Are you asking about an adapter of sorts to fit your "kit" to the Bing's vacuum ports? The ports are located just forward of the float bowl; almost directly under the rubber head-to-carb rubber sleeve. Look for a blanked off rubber cap or a tiny screw -depending on your particular carbs. A bit more info, please?
With my DIY manometer, I used a short length of smaller diameter vinyl tubing to sleeve down the i.d. of the larger vinyl tubing. This did slow down the jitter bug dance of the fork oil I used as a liquid. You don't get quite the jitters with a mercury-filled manometer as the dangerous stuff is so much heavier.
Monte
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Lou
Another tip is to fit a 'screw valve' in line in the tubing. You can then use this to control the vacuum flow to gauge and thereby stop the needles bouncing.
You can buy these from aquarium shops, for a few pence, for use with air pumps.
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Lou Another tip is to fit a 'screw valve' in line in the tubing. You can then use this to control the vacuum flow to gauge and thereby stop the needles bouncing. You can buy these from aquarium shops, for a few pence, for use with air pumps.
In theory, this is an excellent idea. In reality, you must confirm that each of the valves you bought "for a few pence" are flowing the identical volume of air. Any variation and you won't know if your carbs are synched or not. [smiley=2cents.gif]
Of course, the two fish valves would blow my five dollar manometer budget! Monte
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Though it seems like a good idea I too think the fish tank valves would add a big possibility for false readings... even with the lighter fork oil it is still very easy to see the equal fluid bounce on each side.
The adjustments are so touchy any added chance for flow restriction would throw the balance out the window.
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I'm not sure that I understand your question, Lou. Are you asking about an adapter of sorts to fit your "kit" to the Bing's vacuum ports? The ports are located just forward of the float bowl; almost directly under the rubber head-to-carb rubber sleeve. Look for a blanked off rubber cap or a tiny screw -depending on your particular carbs. A bit more info, please?.
Monte
Its the one with the small screws..3 or 4 mm i think,I may get a couple of long screws and drill a hole down the middle 1mmish to fit the pipes to, the bikes running ok on the new diaphragms but i will want to balance them properly soon just to be sure.
Lou
[smiley=thumbsup.gif]
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I'm not sure that I understand your question, Lou. Are you asking about an adapter of sorts to fit your "kit" to the Bing's vacuum ports? The ports are located just forward of the float bowl; almost directly under the rubber head-to-carb rubber sleeve. Look for a blanked off rubber cap or a tiny screw -depending on your particular carbs. A bit more info, please?.
Monte
Its the one with the small screws..3 or 4 mm i think,I may get a couple of long screws and drill a hole down the middle 1mmish to fit the pipes to, the bikes running ok on the new diaphragms but i will want to balance them properly soon just to be sure.
Lou
[smiley=thumbsup.gif]
If you have the itty bitty tiny screws sealing off the vacuum ports, be advised that they are a weird thread not normally available anywhere other than a Bing Agency. Keep 'em close and don't lose 'em... Or just seal the ports with a vinyl screw protector cap from the hardware store.
Monte
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Lou I see your conundrum now...my bike has handy little fitting built on tho the carburetor for the airbox stuff...
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I'm not sure that I understand your question, Lou. Are you asking about an adapter of sorts to fit your "kit" to the Bing's vacuum ports? The ports are located just forward of the float bowl; almost directly under the rubber head-to-carb rubber sleeve. Look for a blanked off rubber cap or a tiny screw -depending on your particular carbs. A bit more info, please?.
Monte
Its the one with the small screws..3 or 4 mm i think,I may get a couple of long screws and drill a hole down the middle 1mmish to fit the pipes to, the bikes running ok on the new diaphragms but i will want to balance them properly soon just to be sure.
Lou
[smiley=thumbsup.gif]
If you have the itty bitty tiny screws sealing off the vacuum ports, be advised that they are a weird thread not normally available anywhere other than a Bing Agency. Keep 'em close and don't lose 'em... Or just seal the ports with a vinyl screw protector cap from the hardware store.
Monte
thanks for that Monte ill get a couple of spare ones from motor works drill the old ones and fit a tube adaptor by hook or by crook they only cost a few pence ill drive the 20 miles over to collect that will save me a buck on postage!!!!........lol
Lol
[smiley=thumbsup.gif]Lou
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"they only cost a few pence ill drive the 20 miles over to collect that will save me a buck on postage!!!!........lol"
Lou, you make me proud! ;D Monte