20 Most Recent 1999 kawasaki VN 1500 Vulcan Classic Questions & Answers

Take a look at the exhaust valves. If the exhaust valves are not opening, the pressure will build (sort of like an air compressor). There should be a cam for the intake and the exhaust, make sure the cam and the valves are operating correctly. Also, check your base gasket and head gaskets. If either gasket is too small, it'll boost your cylinder pressure. It is common to switch out the base gasket and/or head gaskets with thinner ones as an inexpensive mod to boost cylinder pressure. Lastly, too much carbon on the piston head or cylinder head can boost cylinder pressures (rare); the carbon can be a problem which can lead to detonation as well.

32 psi front 39 psi rear Semper Fi, Z

Bike has pulser coil on the flywheel that sends 1volt pulse to CDI that fires pulse to coils underneath tank. Secondary of coils fire across spark plugs. Check simple stuff first, bad caps on plug wires, etc

to just loose all power , it may be a ground wire fault, loose battery terminal , blown fuse

If you have not done so, I would suggest taking the carbs out and cleaning them thoroughly. Clean all the jets, check and adjust the float level. Check your air/fuel mixture. Back firing is typically a sign that you are running too lean.

if u can tuen the throttle and it still run ..its ur idle,u need to adjust ur idle adjustment screw ur manual can help u find this

Nasty sounds like the gear selector needs either adjusting or replacing which means a pull down of the gearbox

buy a work shop manual they are available through bike shops or E-Bay

Belt dressing on drive sounds like clutching system. Maybe talk to service.

Have you checked if the power is reaching the starter ?
And the earth lead from yhe motor to the frame for corrosion or looseness ?
If the power is getting to the starter when you press the button and the leads are all clean then the next thing to check would be for a dead field on the sarter motor. Remove the starter and turn the armature around a bit then see if it works. this can also be the case if the brushes are worn.
Whether you can get the motor to work or not if you are satisfied that power is present at the stater motor when you activate the starter button, then the starter motor needs a service or swap. Do not trust it if you get it to spin after turning it as it will let you down at the worst possible time according to Murphy.

correct setting for your plugs 0.8-0.9mm

NO theres not. i own this very same bike i have the 99 1500 drifter #0791 last 4 of vin. the only quirk with this bike is the clutch springs. they were weak but if this bike has over around 20k miles you should be good because someone else probally has replaced them, if not its a simple quick repair. but if you have to replace them just upgrade to the mean streak spring they will fit, they are a different part number but they will fit. its an hour and a half job to replace them. i have done about 10 of these in the last few years for customers. if any further questions contact me on here and we can go over this on the phone. i am a kawasaki vulcan nut. i own 2 of these bikes one being the 1500 drifter the other a 02 800 drifter.

try uping your idle and leave choke open longer.

best of luck, safe riding

sounds like carb, is airfilter set up ok, it can act as an air restrictor to match the jetting

There is a better than not posibility that your carb is gummed up from sitting for a long period of time. The BEST way to overcome this problem is return to the dealer and ask them to clean and adjust your carb. You can do it ... if you have proper tool and cleaners. It will not hurt at all to have your 14 year old Kawasaki properly attended to as a new owner. After you get this this repaired, I recommend you use a guel conditioner which will lessen the occurrence of gum build up on your machine due to inactivity.

Hi the thing to do is wash your bike off remove bags and stuff that you can, then take it for a short ride and just look for the area where it is leaking.try not to ride it to fast because oil on a hot motor will blow all over making it hard to determin where it is coming from.

The float highth is .74" + or - .07"

it must be an wiring problem in rear / middle part of a bike.