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Old 05-02-12, 09:29 PM   #1
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NV NIKKI Carb HELP!!!

Carb is getting and receiving fuel, bowl is 3/4 full by the sight glass but no fuel is feeding into the engine. It is bone dry. WTF???? Carb has been re-built, tested before the engine re-build and it worked fine. Please help!!
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Old 05-03-12, 06:44 AM   #2
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is your AP diaphragm ripped or have a hole in it? if you take your air cleaner off and look down the carb and then hit the gas you don't see any gas at all?
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Old 05-03-12, 07:01 AM   #3
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How long did it sit while the engine was rebuilt? Did you put it away full of fuel before the
rebuild? The old gas may have turned to varnish.

Probably will need to disassemble at a minimum and clean it up. I'd get a rebuild kit just in
case as well.
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Old 05-03-12, 11:22 AM   #4
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big vacuum leak will do this too. no fuel comes out if the engine can't make a vacuum
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Old 05-03-12, 01:52 PM   #5
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I checked all of the vacuum hoses and none seem to be disconnected, the carb sat for a few months, no fuel being dumped into the carb. Is there something I can clean it with or put in with the gas to help clear it up? Like MMO or carb cleaner?
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Old 05-03-12, 02:08 PM   #6
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Sounds like the easiest route would be to rebuild the carb. Soak the parts in part cleaner to free up the passages. Definitely wouldn't hurt. Good luck.
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Old 05-03-12, 02:19 PM   #7
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Jtaler, with engine off if you stroke the throttle do you see fuel come out?

If not I'd lean toward ac pump as shaw has said or the fuel pump is not working
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Old 05-03-12, 02:36 PM   #8
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Quote:
Originally Posted by jtalar View Post
I checked all of the vacuum hoses and none seem to be disconnected, the carb sat for a few months, no fuel being dumped into the carb. Is there something I can clean it with or put in with the gas to help clear it up? Like MMO or carb cleaner?
you can pop the top off and use carb cleaner to blow thru the passages, you'll be able to tell if its blocked.

the other test you can do is to spray some carb cleaner in the carb and see if it runs, if it doesn't then it might be a bad ignitor or fouled plug
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Old 05-03-12, 05:38 PM   #9
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13X, it is getting fuel into the carb and bowl just not spraying out of the nozzles, spark is good, already checked that twice, re-timed it 3 times thinking that i screwed it up. Poured a little gas in the carb and it hiccups like she wants to run, just won't. I will try some carb cleaner and see if I can spray it into the nozzles
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Old 05-05-12, 09:23 PM   #10
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I would double check the accelerator pump circuit. It should have fuel in that circuit. Maybe something is backwards.
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Old 09-09-13, 12:58 AM   #11
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Quote:
Originally Posted by jtalar View Post
13X, it is getting fuel into the carb and bowl just not spraying out of the nozzles, spark is good, already checked that twice, re-timed it 3 times thinking that i screwed it up. Poured a little gas in the carb and it hiccups like she wants to run, just won't. I will try some carb cleaner and see if I can spray it into the nozzles

Did you ever get it to work? I have same problem right now. After I got sterling carb and removed rats nest. But sounds like we have same problem
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Old 09-09-13, 03:21 PM   #12
Driven a turbo FB lately?
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Sniff sniff: worked fine before engine rebuild you say? Compression? Didn't try some wacky porting did you?

Happened to me once upon a time. Just couldn't get her to run. No matter what... I ported the intake and barely went towards the eccentric shaft. Yelp really pretty door stop making 100 psi all 6 sides of the rotor.
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Old 09-10-13, 09:04 AM   #13
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Rebuild sucked ... fixed carb ... car has since been sold since and lives in sunny Socal
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Old 09-10-13, 12:32 PM   #14
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Yes i got it fixed by swapping the carb out with another Nikki, fired right up after the swap
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Old 09-11-13, 02:55 AM   #15
Driven a turbo FB lately?
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Ha ha. Good ole digging up bones. Lol
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