Today's Message Index:
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1. 07:13 AM - Re: carb synch hose sizes (Roger Lee)
2. 12:21 PM - Re: carb synch hose sizes (Roger Lee)
3. 04:57 PM - Re: carb synch hose sizes (JohnE)
Message 1
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| Subject: | Re: carb synch hose sizes |
They are the small ones. I think around 1/4" OD and maybe 1/8" or less ID. The
hole size should be small and the smaller the better. We don't care about volume
just the vacuum. The larger hole sizes will just give you more needle fluctuation
to dampen out. I would put a an adjustable needle valve inline on both
vacuum lines so you can dampen any gauge needle fluctuation. I'm still old school
in on my connection at the cross over. I just pull off the left side of the
cross over tube rubber end. Then I know the carbs are separated and not leaking
verses if I just pinch off the rubber between carbs. I then just use a barbed
fitting and up-size to the hose end I need on the 90 degree fitting (3/8"
poly hose) off the top of the manifold and a smooth shank fitting that goes into
the rubber end on the cross over tube. (smooth shank= I took a barbed 3/8"
barbed fitting and sanded off the barbs)
You can certainly use the manifold port screws that are on top of the manifolds
to make the connection, but then you still have to separate the carbs by pinching
off the cross over tube rubber hose.
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Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center - Heavy Maint. Rated
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=403456#403456
Message 2
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| Subject: | Re: carb synch hose sizes |
Here's an older picture, but it gets the point across and this works very well.
I would use regular vacuum lines and not the clear plastic. The plastic does
work.
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Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center - Heavy Maint. Rated
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=403473#403473
Attachments:
http://forums.matronics.com//files/carb_sync_150_165.jpg
Message 3
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| Subject: | Re: carb synch hose sizes |
Roger Lee wrote:
> Here's an older picture, but it gets the point across and this works very well.
I would use regular vacuum lines and not the clear plastic. The plastic does
work.
Thanks for the picture. Makes sense to me now. How close are you able to get
the difference between the carbs? Also, do you make the adjustments to a running
engine or do you shut off between adjustments?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=403497#403497
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