starting prob. grr - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Carbs and Fuel System
From the gas tank to the carbs
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post #1 of 14 (permalink) Old 07-17-2013, 04:16 PM Thread Starter
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starting prob. grr

alright i got the vn750 2001 went to start it and turns over smell fuel the backfires. realized choke cable is snapped so i was basically trying to cold start with no choke. anyway this vn has the air box delete so P.O. put air filters directly on carbs. prob didn't re-jet as he was a younger kid.

what jets would be needed. I take plugs out and they are soaked clean them up and yes i have spark but not starting up just backfiring like trying to burn a lot of fuel off the start. also any key ways to start without a choke lol.
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post #2 of 14 (permalink) Old 07-17-2013, 04:17 PM Thread Starter
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also "muffler" under bike is gone so its just the silencers on the tips.
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post #3 of 14 (permalink) Old 07-17-2013, 04:36 PM
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How is the battery's charge? Make sure is all charged up or the VN likes to backfire and not start if its low on juice.

I start without choke when it's above 70.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

2014 Honda VFR800F

1989 Pontiac Firebird Formula 350
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post #4 of 14 (permalink) Old 07-17-2013, 04:42 PM Thread Starter
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well i am in fl and its in the 80's i checked the charge and also has a tender/charger hooked to it for good measure.
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post #5 of 14 (permalink) Old 07-17-2013, 04:50 PM
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sounds more like a float bowl sticking than a lean condition either way the jets recomended for the pod filters are 142 mains and 42 pilots with two shims on the needles

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post #6 of 14 (permalink) Old 07-17-2013, 05:00 PM Thread Starter
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i'll have to find somewhere local to get the jets and hopefully get this thing going right.
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post #7 of 14 (permalink) Old 07-17-2013, 05:15 PM
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if you have a cycle gear near by they usually have some in stock and if they dont they can usually get them quick

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Sucks getting old but it beats not getting old.

i got my helmet but it sure makes licking the windows a chore

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post #8 of 14 (permalink) Old 07-17-2013, 06:05 PM Thread Starter
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all the cycle gears around here when out of business but i'll check with the shop who used to order my parts when i raced.
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post #9 of 14 (permalink) Old 07-17-2013, 06:28 PM Thread Starter
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I put a trickle charger on her and after sitting she fired right up. Front cyl running smooth as can be. Rear cyl backfiring out of exhaust every 5 seconds then runs smooth. She still isn't warm yet so gonna get her warm ad see what happens
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post #10 of 14 (permalink) Old 07-17-2013, 06:38 PM Thread Starter
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she got to running temp and smoothed out for the most part. few hiccups which are to be expected. but then shut her off for 2 minutes and when i went to start it up she just turns over. spray a dash of starting fluid and poof. fired up.

confused. when she is cold plugs get soaked and i have to clean them to start her. when she is warm i have to spray start fluid.
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