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Clear tube test air problem...
- ELCouz
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I'm trying to check the float fuel level in each bowl via the clear tube test ... the problem is when i open the drain screw on my Mikuni BS34 i have a big air pocket inside the tube which i can' t get rid of.... this give me misreading every time...
What do you do in this case... seems nobody had this problem before (it's not posted in the forum yet)?
regards,
laurent
1982 KZ810-R1 GPZ with hindle 4-into-1 pipe
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- otakar
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74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000
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- ELCouz
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regards,
laurent
1982 KZ810-R1 GPZ with hindle 4-into-1 pipe
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- DoubleDub
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- stonemaster
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- Patton
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...trying to check the float fuel level in each bowl via the clear tube test ... the problem is when i open the drain screw on my Mikuni BS34 i have a big air pocket inside the tube which i can' t get rid of.... this give me misreading every time...What do you do in this case... seems nobody had this problem before (it's not posted in the forum yet)?....
Assure bowl vent hose is clear, exits to open air, and isn't kinked or blocked.
Could start test with already drained (dry) float bowl;
then set everything up with loosened drain screw;
last thing being turn petcock to PRI.
As fuel flows into float bowl, fuel should simultaneously flow into the clear tube.
Air inside bowl should be displaced by incoming fuel, and exit through the vent.
If bubble in test line persists, try starting test with full float bowl;
turn petcock to ON (non-flow position);
attach and hold clear tube in position;
loosen drain screw;
turn petcock to PRI.
If bubble in test line still persists, try starting test with full float bowl;
turn petcock to ON (non-flow position);
attach and hold clear tube in position;
turn petcock to PRI;
loosen drain screw.
Good Fortune!
1973 Z1
KZ900 LTD
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- loudhvx
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You should have a pan umderneath to catch gasoline. I usually let some run out of the tube and then lift the tube while it is running. This usually gets the air out for me.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
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- Patton
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Am guessing there's sometimes an air bubble problem when dealing with CV carbs that have dual purpose nipple at bottom of bowl (normally overflow that also serves as drain when screw is loosened).
Good Fortune!
1973 Z1
KZ900 LTD
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- ELCouz
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Yeah, sometimes you get air in there, and it does alter the level. Usually you just play with it a little and the buble should come out.
You should have a pan umderneath to catch gasoline. I usually let some run out of the tube and then lift the tube while it is running. This usually gets the air out for me.
Yes, i've changed my clear tubing for a more flexible one... i was able to play with the pocket back and forth, finally i've got them.
thank you guys, it worked!
regards,
laurent
1982 KZ810-R1 GPZ with hindle 4-into-1 pipe
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- loudhvx
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Patton, yes, the ones that seem to get an air bubble are the ones that have the dual purpose drain/overflow. But it's not a real big problem..just have to play with it a little.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
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