Question about 1997 kawasaki VN 750 Vulcan

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1997 Kawasaki VN 750 Vulcan will not rev past 4000 rpm

Hello my 97 Kawasaki Vulcan 750 won't pass 3rd gear, starts slowing down after 4000 rpm, did an oil change, adjusted throttle, cleaned the carburetor but it's still acting up as such any ideas? @

Posted by Gabriel Calderon on

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1 Answer

Gregg Mahin

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  • kawasaki Master
  • 61,850 Answers

Hi, Gabriel and the usual suspects are:
1. Dirty or clogged air filter.
2. Faulty spark plug.
3. Bad Gas.
4. Improper oil level.
5. Improper chain adjustment and lubrication.
6. Low tire pressure.
7. Dirty or contaminated carburetor needs cleaning and tuning.
8. Clogged or faulty fuel pump or injectors.
9. Improper valve adjustment.
10. Slipping clutch.
11. Improper timing.
12. Low compression.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.vn750.com/forum/22-carbs-fuel-system/12631-help-needed-poor-power-after-4000rpm.html
Losing power bogging on Freeway High RPM Scary Help Please KawiForums...
Kawasaki VN 750 Service Manual
OEM Parts for Kawasaki
1997 Kawasaki Vulcan 750 Owner Manual

Posted on Mar 03, 2019

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5 Related Answers

A Miller

  • 8404 Answers

SOURCE: DONT KNOW WHERE THE FUSES ARE ON MY 1991 KAWASAKI 750 VULCAN

you might search for an owners manual at www.archive.org and/or the manufacturer web site.

Posted on Oct 14, 2009

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mwoodring1

mark woodring

  • 496 Answers

SOURCE: 2001 Honda Shadow ACE 750 idles, but won't rev up

vac leak craked boots

Posted on Jan 05, 2010

Anonymous

  • 47 Answers

SOURCE: My 2005 Kawasaki Vulcan 750 is struggling in fifth

If the bike is reving high in top gear but you are not gaining speed or very little speed your clutch is slipping. This is a sign the clutch needs replaced.

Posted on Mar 04, 2010

Anonymous

  • 314 Answers

SOURCE: how to change oil on a 2003 Kawasaki Vulcan 750

Firstly run your engine till you reach its normal running temp .The engine drain plug will be found under neath the engine normally at the lowest part .Warm oil drains out of the engine much more quickly that cold oil ..when all the oil stops dripping then remove the oil filter ,make sure that the sealing ring is removed ,take care the oil in the filter will be very hot .replace with your new filter make sure you do not cross thread the oil filter unit and any seals have been fitted . Refit your drain plug and fill up to the required level . start engine ,your oil level will drop because the oil filter will fill up and the new oil will be pumped around the engine. make sure that the engine level is topped up when all the oil has reached all the parts of the engine .Do not over fill the engine as this will cause unwanted pressure .and oil leaks .Remember to replace the oil filler cap and that its tight .

Posted on Mar 14, 2010

Anonymous

  • 1 Answer

SOURCE: how do I clean the carburetor on a kawasaki

My bike would run but once in gear it sounded like no gas was getting in and it would die out.
There is a nipple located on the lower left side of the Carb. It takes a Hex to twist it or a needle nose plier. Turn it and the bad gas from the carb will leak out. Usually water and dirt. I put a plastic bottle under the nipple until it stops, usually 1 oz comes out. Or you can get the card cleaned for $300.

Posted on May 17, 2010

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1 Answer

1997 Kawasaki VN 750 Vulcan spark plug gap


Hi, Anonymous for this scenario you will need your service manual that has all fastener torque specs and a wiring diagram on the back pages, parts fiche, and owners manual if you can't find the best tool you ever bought for your Kawasaki, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

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1 Answer

1994 Kawasaki VN 750 Vulcan the clutch will not engage


Hi, Mgcyrusworks and the usual suspects are:
1. Clutch cable adjusted too tight.
2. Pressure plate center screw adjusted too tight
3. A broken clutch rod.
4. Slave cylinder piston stuck.
5. Clutch plate missing from the clutch pack.
6. Clutch plates have worn past minimum specifications.
7. Clutch plates crystallized due to incompatible oil.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
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http://www.kawasakimotorcycle.org/forum/kawasaki-cruisers/66113-gears-wont-engage.html
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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

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1 Answer

2002 kawasaki VN 750 Vulcan hard to start when cold


Hi, Gd2bbahun I would take it back to the dealer and have them fix it properly or ask for a refund and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Vacuum line from the petcock to intake manifold cracked.
5. Float needle and seat sticking.
6. Float level too low.
7. Carburetor bowl vent line clogged/blocked/pinched.
8. Idle adjusting screw set too low.
9. Air/fuel mixture screw set too lean.
10. Idle port, transfer ports, slow air jet clogged.
11. Slow fuel jet clogged.
12. Faulty fuel pump.
For more information about your issue and valuable "Free" downloads that you will need please Click on the blue links below. Good luck and have a wonderful day.
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http://mybikemanuals.com/kawasaki/kawasaki-vulcan-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

May 21, 2017 | 2002 kawasaki VN 750 Vulcan

1 Answer

1997 Kawasaki VN 750 Vulcan fuel line routing


Hi, Anonymous for this scenario you will need your service manual that has all fastener torque specs and a wiring diagram on the back pages, parts fiche, and owners manual if you can't find the best tool you ever bought for your Kawasaki, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
1997 Kawasaki VN 750 Vulcan fuel line routing Google Search
https://www.vn750.com/forum/22-carbs-fuel-system/8356-need-fuel-line-diagram.html
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Aug 17, 2012 | 1997 kawasaki VN 750 Vulcan

1 Answer

1997 Kawasaki VN 750 Vulcan idle adjustment


Hi, Sherrod it should be noted that the "AIR FUEL" mixture screw adjustment "ONLY" manages your idle and has no effect on any other circuit also any intake leaks must be repaired before the A/F adjustment procedure can be performed otherwise you will never obtain a proper idle and you will waste a lot of time chasing the impossible. The A/F mixture screw's purpose is to fine tune the fuel charge entering the combustion chamber. The following applies to both 2 and 4 stroke engines:
1. The mixture screw may be sealed at the factory with a Welch Plug please review the following video for removal.
https://www.youtube.com/watch?v=wAXcksgvDkM
2. The mixture screw manages a range of 3 complete 360-degree counterclockwise turns from the bottom/closed position.
3. The mixture screw should have a spring and o-ring for tension and sealing integrity.
4. Turn the mixture screw clockwise until it gently bottoms out, this makes the fuel charge very lean and the engine should not idle if it does then the pilot/idle jet is too big and needs to be replaced with the next size smaller.
5. Turn the mixture screw 1 and 1/2 turns counterclockwise to establish a baseline for starting the engine.
6. To fine-tune the idle circuit, adjust the mixture screw 1/4 turn in or out to achieve maximum idle RPM, wait 15 seconds between each adjustment for the idle to settle.
7. Never go past 3 full turns out this will make the fuel charge rich, foul plugs, and produce black smoke out of the exhaust, if the engine RPM keeps increasing past 3 turns the pilot/idle jet is too small and needs to be replaced with the next size larger.
8. After achieving maximum idle back out the mixture screw another 1/8 of a turn then adjust the throttle cable idle stop screw to 950-1050 RPM.
9. This procedure works great on 99% of all engines, for the 1% that demand a more robust throttle response on aftermarket monster fuel delivery systems additional tweaking outside the box may be necessary.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
http://www.vn750.com/forum/11-vn750-general-discussion/8631-how-do-i-adjust-engine-idle.html
http://www.kawasakimotorcycle.org/forum/mechanics-corner/131821-adjusting-idle-speed-98-vulcan-750-a.html
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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


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1 Answer

2002 Kawasaki VN 750 Vulcan will not shift


Hi, Jose and the usual suspects are:
1. Improper clutch adjustment or not disengaging.
2. Bent shift shaft.
3. Shift fork bent or seized.
4. Gear seized on the shaft.
5. Gear positioning lever binding.
6. Shift return springs weak or broken.
7. Shift return spring pin loose
8. Shift mechanism arm spring is broken.
9. Shift mechanism arm is broken.
10. Shift drum is broken.
11. Shift lever loose on the shift shaft.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
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Jun 12, 2012 | 2002 kawasaki VN 750 Vulcan

1 Answer

1995 Kawasaki VN 750 Vulcan will not shift


Hi, Lori_camp and the usual suspects are:
1. Improper clutch adjustment or not disengaging.
2. Bent shift shaft.
3. Shift fork bent or seized.
4. Gear seized on the shaft.
5. Gear positioning lever binding.
6. Shift return springs weak or broken.
7. Shift return spring pin loose
8. Shift mechanism arm spring is broken.
9. Shift mechanism arm is broken.
10. Shift drum is broken.
11. Shift lever loose on the shift shaft.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
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I've got the service manual. Do you need it?

Feb 27, 2009 | 1997 kawasaki VN 750 Vulcan

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