Why won't she idle? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 31 (permalink) Old 02-09-2009, 11:08 AM Thread Starter
 
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Why won't she idle?

Yesterday it finally warmed up enough to take her out, and I had a hard time getting her fired up. Once running, I couldnt take off the choke all the way, or she would stall.

Been about 6 weeks since she ran, I think maybe water in the fuel? I had to leave choke on enough to idle around 2k, anything less would stall. Any suggestions?
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post #2 of 31 (permalink) Old 02-09-2009, 12:13 PM
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a couple sugestions....seafoam is a must .... how did it run did it seam like it was missin on accelerration? did it feel like a dead hole? i recently lost the rear hole to what i believe was bad fuel... it was suggested to me that if water gets in the jet the surface area wontallow fuel to pass... you will definatly realize this cause you will lose a lot of performance but pull the boot away from the carb thats on the dead hole (between the airbok and carb) rev up to 5-6000 rpms and cover inlet with palm of hand this should create enough vacume to pull a molicule of water through the carb..... i took mine to the next level and ran 120 psi through all the orfaces and hoses i could reach without removing the carbs....

If you seem to be ok except at idle bring out the idle adjutment screw little black knob on left side of carb (when sitttin on the bike) and bring your idle up enough to run without choke switch to reserve and ride that take till its all gone then get a good additive and a good gas ( i love chevron premium) and a lil seafoam and run that tank to almost empty turn petcock to on and see if you can bring that idle down ....



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post #3 of 31 (permalink) Old 02-09-2009, 12:20 PM Thread Starter
 
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It did seem like it was missing a little... not really on acceleration, but cruising steady. Just enough for me to notice it. More like a sputter, then good for the next 1/4 mile or so, then again.

Seafoam, huh? Ive heard all the raves about it, may have to give it a try.
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post #4 of 31 (permalink) Old 02-09-2009, 12:25 PM
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Give it a try unless you really want to pull the carbs and clean them!

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post #5 of 31 (permalink) Old 02-09-2009, 01:44 PM
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Quote:
Originally Posted by seebeeare View Post
a couple sugestions....seafoam is a must .... how did it run did it seam like it was missin on accelerration? did it feel like a dead hole? i recently lost the rear hole to what i believe was bad fuel... it was suggested to me that if water gets in the jet the surface area wontallow fuel to pass... you will definatly realize this cause you will lose a lot of performance but pull the boot away from the carb thats on the dead hole (between the airbok and carb) rev up to 5-6000 rpms and cover inlet with palm of hand this should create enough vacume to pull a molicule of water through the carb..... i took mine to the next level and ran 120 psi through all the orfaces and hoses i could reach without removing the carbs....

If you seem to be ok except at idle bring out the idle adjutment screw little black knob on left side of carb (when sitttin on the bike) and bring your idle up enough to run without choke switch to reserve and ride that take till its all gone then get a good additive and a good gas ( i love chevron premium) and a lil seafoam and run that tank to almost empty turn petcock to on and see if you can bring that idle down ....
Seebeeare I will agree with everything you said, except the use of premium gas. Our VN750s do not need premium gas, and according to the post in the Verses on what gas to use, premium may actually give lower fuel economy and cause other problems. There have been other threads concerning the use of premium gas that you can find with the search function.

On the other hand dev110, I give a X3 to seebeeare and antique to run a stiff shot of seafoam through the tank and carbs to see if that cures your steel pony. Good luck and let us know how the treatment works.

Gordon

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Purchased May 16, 2008
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post #6 of 31 (permalink) Old 02-09-2009, 01:54 PM
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SEAFOAM! or you can try SEAFOAM, but I think the SEAFOAM will will work the best. Don't be stingy, use a half can w/full fresh fuel.


85 VN700 "Old Yella"

REBUILT ENGINE
CUSTOM PAINT
VANCE & HINES CRUZERS
EAR SHAVED AND RE-JETTED W/K&N'S
DUNLOP ELITE K591 FRONT & REAR
VOLTMETER
SYNTHETIC BRAKE FLUID
SYNTHETIC OIL & GEAR LUBE
PLEXISTAR 2 WINDSHIELD
SPLINES LUBED
ACCT'S GREASED W/TOC SPRINGS
COASTERD
LEATHER SADDLE BAGS
LEATHER TOOL AND ROLL BAG
PICKUP COILS GAPPED AT .018"
NGK CAP, WIRES, IRIDUMS
BARNETT FRICTION PLATES & SPRINGS
CUSTOM GRIPS, MIRRORS, LEVERS
ORIGINAL STATOR & R/R 14.5v
DEKA MF AGM ETX15L

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Last edited by lance328; 02-09-2009 at 01:56 PM.
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post #7 of 31 (permalink) Old 02-09-2009, 02:21 PM
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Ive read the rants about not using premium... wouldnt the higher octane allows devs bike to burn whatever is not burning to begin with?
2. i dont know how to explain it but my bike runs like **** if i dont use the stuff granted it might be the brand more then the octane but i dunno if it works why not use it? with the amount of alchool they are puttin in gas these days its no wonder any of it burns and no wonder the stuff keeps breakin ....



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MF AGM
DeGoated
Ears Shaved
R/R relocated
Rebuilt



She's worth her weight in GOLD
If u dont have it already Here is the Service Manual
How To Test the Stator
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post #8 of 31 (permalink) Old 02-09-2009, 02:43 PM
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Quote:
Originally Posted by seebeeare View Post
Ive read the rants about not using premium... wouldnt the higher octane allows devs bike to burn whatever is not burning to begin with?
2. i dont know how to explain it but my bike runs like **** if i dont use the stuff granted it might be the brand more then the octane but i dunno if it works why not use it? with the amount of alchool they are puttin in gas these days its no wonder any of it burns and no wonder the stuff keeps breakin ....
Seafoam will dry up any moisture in the fuel system. Most bikes and cars do not have high enough compression to completly burn high octane fuel. You will waste more fuel with high octane vs. low octane. Which results in more unburnt fuel in your oil and out the exhaust. A higher octane fuel will burn slower and have a higher flash point.


85 VN700 "Old Yella"

REBUILT ENGINE
CUSTOM PAINT
VANCE & HINES CRUZERS
EAR SHAVED AND RE-JETTED W/K&N'S
DUNLOP ELITE K591 FRONT & REAR
VOLTMETER
SYNTHETIC BRAKE FLUID
SYNTHETIC OIL & GEAR LUBE
PLEXISTAR 2 WINDSHIELD
SPLINES LUBED
ACCT'S GREASED W/TOC SPRINGS
COASTERD
LEATHER SADDLE BAGS
LEATHER TOOL AND ROLL BAG
PICKUP COILS GAPPED AT .018"
NGK CAP, WIRES, IRIDUMS
BARNETT FRICTION PLATES & SPRINGS
CUSTOM GRIPS, MIRRORS, LEVERS
ORIGINAL STATOR & R/R 14.5v
DEKA MF AGM ETX15L

Best Auto/Moto Insurance | Motorcycle Protection Today | FREE Trade-In Quote
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post #9 of 31 (permalink) Old 02-09-2009, 03:09 PM Thread Starter
 
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Okay, I got a 16oz can of Seafoam... If I understand correctly, I will pour in about 1/2 and just ride thru all the fuel? I have about 3/4 tank right now...
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post #10 of 31 (permalink) Old 02-09-2009, 03:55 PM
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Quote:
Originally Posted by dev110 View Post
Okay, I got a 16oz can of Seafoam... If I understand correctly, I will pour in about 1/2 and just ride thru all the fuel? I have about 3/4 tank right now...

Yup!


85 VN700 "Old Yella"

REBUILT ENGINE
CUSTOM PAINT
VANCE & HINES CRUZERS
EAR SHAVED AND RE-JETTED W/K&N'S
DUNLOP ELITE K591 FRONT & REAR
VOLTMETER
SYNTHETIC BRAKE FLUID
SYNTHETIC OIL & GEAR LUBE
PLEXISTAR 2 WINDSHIELD
SPLINES LUBED
ACCT'S GREASED W/TOC SPRINGS
COASTERD
LEATHER SADDLE BAGS
LEATHER TOOL AND ROLL BAG
PICKUP COILS GAPPED AT .018"
NGK CAP, WIRES, IRIDUMS
BARNETT FRICTION PLATES & SPRINGS
CUSTOM GRIPS, MIRRORS, LEVERS
ORIGINAL STATOR & R/R 14.5v
DEKA MF AGM ETX15L

Best Auto/Moto Insurance | Motorcycle Protection Today | FREE Trade-In Quote
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