'93 VN750 Start-Up Problem, Building a Checklist - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 23 (permalink) Old 03-16-2010, 11:51 AM Thread Starter
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'93 VN750 Start-Up Problem, Building a Checklist

I just brought the bike home the other day. From my understanding, it's been sitting for at least a year. The very first thing i did was replace the battery with a sealed battery from Advanced Auto (found and bought a recommended part number from the site, forgot what number it was now and I'm at work so i can't check). It started up rough, but that was to be expected, and I put it in my garage after about a 10-15 minute ride home.

Last night I went to go turn her over again while i was getting my work station ready to do oil / coolant maintenance, and it wouldn't go. All the dash lights and turn signals are strong, and the starter is clicking over, it just wouldn't crank. The tank was on Reserve, and I had it in "Run". One thing i didn't consider at the time was checking the kick stand cut off, I'll have to look at that. I've got a lot of information from here already, and I'm going to start troubleshooting tomorrow. I think I'm going to start with;

1. Checking with the volt meter at the battery.
2. Trying to jump her from a non-running vehicle / running vehicle.
3. If the battery's good, I guess I'll have to volt meter the starter, and/or pull it to check the brushes.
4. I need to check the spark plugs, haven't had a chance yet. I'm going to buy the Iridiums if there not in there. I'll pull them out, cover the recessed hole, and turn her over to check for spark as well if all else fails.

The question i have right now really is what order i should do this in. I'm almost inclined to go and switch the oil over to the Mobile 1, drop some 93 gas in the tank, and see if that helps before i start going into checking all the electrical equipment.

After i get it starting reliably, I'm going to jump into the rectifier mod and the volt gauge. I can't wait until i can get back into the garage. Hopefully I'll post some pictures later too.

-------
1980 Honda CM400T - Old Picture
No More Fairing, Rack or Back Seat
My Sister Has It For Now

http://i13.photobucket.com/albums/a2...22_6753703.jpg


1993 Kawasaki Vulcan 750
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Last edited by SeanRP; 03-16-2010 at 03:40 PM.
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post #2 of 23 (permalink) Old 03-16-2010, 02:08 PM
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Is the clicking sound under the seat or do you think it is coming from the starter. If it is under the seat the starter celenoid is clicking but not enough charge to turn the motor over. If at the starter, then starter is the problem or the connection. The battery even new may still be the problem. Take it back to Auto Zone and have them load check it.

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post #3 of 23 (permalink) Old 03-16-2010, 02:23 PM Thread Starter
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Yea, the clicking is coming from behind the right side cover. I probably will end up going back tomorrow and get the battery load tested, that's a good idea.

-------
1980 Honda CM400T - Old Picture
No More Fairing, Rack or Back Seat
My Sister Has It For Now

http://i13.photobucket.com/albums/a2...22_6753703.jpg


1993 Kawasaki Vulcan 750
http://i13.photobucket.com/albums/a271/SeanRP/kawa2.jpg
http://i13.photobucket.com/albums/a271/SeanRP/kawa1.jpg
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post #4 of 23 (permalink) Old 03-16-2010, 03:22 PM
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Don't jump the battery from a running cage, you'll do some damage. Jump it with the cage turned off. You've still got lots more amps available from a non running cage battery than you will ever need to crank the bike.

Since it sat for over a year, I would drain all the old gas and replace with fresh. Look inside the tank and see how much rust there may be. High octane gas isn't good for the bike; can lead to problems. If it doesn't fire on regular, there's a problem other than the gas.

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
_____________________________________________
"Black Beauty"
1989 VN750 acquired December, 2008, 6,711 miles
Currently 23,298 miles

Old Blue
2001 Honda CMX250 Rebel acquired July, 2008

1987 VN750 project bike, acquired August, 2009, 33,000 miles and balancer sticking out of the case, currently awaiting attention and parts

Last edited by flitecontrol; 03-16-2010 at 03:28 PM.
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post #5 of 23 (permalink) Old 03-16-2010, 03:42 PM Thread Starter
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Quote:
Originally Posted by flitecontrol View Post
Don't jump the battery from a running cage, you'll do some damage. Jump it with the cage turned off. You've still got lots more amps available from a non running cage battery than you will ever need to crank the bike.

Since it sat for over a year, I would drain all the old gas and replace with fresh. Look inside the tank and see how much rust there may be. High octane gas isn't good for the bike; can lead to problems. If it doesn't fire on regular, there's a problem other than the gas.
Thanks Flight, That's probably what I'll do. I was just going to mix / burn it off, but it probably is just as easy to drain it. I'll grab a can and get some after work tonight. Sitting in the office is driving me crazy today. 65 and sunny out

-------
1980 Honda CM400T - Old Picture
No More Fairing, Rack or Back Seat
My Sister Has It For Now

http://i13.photobucket.com/albums/a2...22_6753703.jpg


1993 Kawasaki Vulcan 750
http://i13.photobucket.com/albums/a271/SeanRP/kawa2.jpg
http://i13.photobucket.com/albums/a271/SeanRP/kawa1.jpg
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post #6 of 23 (permalink) Old 03-16-2010, 04:05 PM
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Should have mentioned running half a can of SeaFoam through it with the fresh tank of gas.

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
_____________________________________________
"Black Beauty"
1989 VN750 acquired December, 2008, 6,711 miles
Currently 23,298 miles

Old Blue
2001 Honda CMX250 Rebel acquired July, 2008

1987 VN750 project bike, acquired August, 2009, 33,000 miles and balancer sticking out of the case, currently awaiting attention and parts
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post #7 of 23 (permalink) Old 03-16-2010, 05:45 PM
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Also, on a bike that has been sitting for that long, you'll probably want to pull the connections loose on the solenoid and clean them, clean up the two grounds, (one under the seat and one on back right of engine behind the coolant bottle) and check and clean the starter power connection on the starter. Some sand paper can clean up the connections well. If you have some, put dielectric grease on each of them before you put them back together. Corroded connections like these can cause you a lot of headaches. X2 on the seafoam. X2 on looking inside your tank for rust with a flashlight.
Another thing I would check is the oil level. Check the site glass with the bike on the centerstand. Make sure it's not low on oil. I know you're ready to change the oil and filter, but if you've been starting and running it, just make sure it's full of oil, even dirty for now, until you get it changed.

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post #8 of 23 (permalink) Old 03-16-2010, 06:14 PM
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Quote:
Originally Posted by flitecontrol View Post
Don't jump the battery from a running cage, you'll do some damage. Jump it with the cage turned off. You've still got lots more amps available from a non running cage battery than you will ever need to crank the bike.

Since it sat for over a year, I would drain all the old gas and replace with fresh. Look inside the tank and see how much rust there may be. High octane gas isn't good for the bike; can lead to problems. If it doesn't fire on regular, there's a problem other than the gas.
he means fill the bike with 87 octane not 93. our bikes dont need the expensive stuff!

1986 vn 750 aka "Huck Farley"
42,000 miles
Rick's stator and rr
Tuxedo stator cover mod
pickup coil mod
dampers replaced
agm m/f battery
Harley sportster exhaust, degoated
Hid conversion
splines lubed
custom "vn750.com" grill cover
NGK Iridium spark plugs


acct to mcct mod https://www.vn750.com/forum/showthread.php?t=17917

rekeying locks, https://www.vn750.com/forum/showthread.php?t=7309

stator replacement walkthrough, https://www.vn750.com/forum/showthread.php?t=11369
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post #9 of 23 (permalink) Old 03-17-2010, 09:00 AM Thread Starter
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Well, it was 10pm by to time i got home, So I didn't spend to much time in the garage last night. I did check a few things though, Oil's good, there are a few spots of rust in the tank, mostly in the top middle. I was still getting the solenoid click, so I just tossed a pair of cables on from my Pontiac to the bike. I no longer got just the clicking, it turned into a rough "I want to turn over, but i still don't have enough juice" sound, lol. So, I'm going to go back and get the battery checked out at lunch time. I have a feeling there going to tell me that it's either drained or bad. I'm going to look for the Sea Foam too, I've seen it being talked about on here, sounds like it's amazing.

-------
1980 Honda CM400T - Old Picture
No More Fairing, Rack or Back Seat
My Sister Has It For Now

http://i13.photobucket.com/albums/a2...22_6753703.jpg


1993 Kawasaki Vulcan 750
http://i13.photobucket.com/albums/a271/SeanRP/kawa2.jpg
http://i13.photobucket.com/albums/a271/SeanRP/kawa1.jpg
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post #10 of 23 (permalink) Old 03-17-2010, 09:33 AM
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If your bike has been sitting that long I would recommend you sending the carbs to Steve at Carbworx to have him clean them out. $40 per carb isn't going to break the bank and you will know you have working carbs when you get them back.

Just don't do like I did and not thoroughly flush your gas tank out before putting the redone carbs on your bike. Matter fact it might be a good idea to put fuel filters on the lines just in case.

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---------------------------
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