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Old 01-13-2017, 07:44 PM   #1
Bad55taco   Bad55taco is offline
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Pissed Wtf help im out of ideas

Ok so im new to this bike. I just bought a 2000 vulcan 1500 fuel injection. I know she is old but i just love the style. She has 15k miles and this has been kinda sudden. So if i ride her to work (about 40 min away 24 miles) and it rains the bike will crank just not start. And sometimes in the morning if the temp falls below 50 at night it will do the same thing. The injector sylinods are clicking so i know therea fuel and shes getting spark. New battery new starter im just in aww about it. Any ideas



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Old 01-13-2017, 08:22 PM   #2
Ridefree   Ridefree is offline
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For starters , welcome to the forum !!

Can you tell us more about your bike ? Is it stock or has anything been done to it . Like pipes ect ?

I would start by looking at the easy stuff first . Check your plugs , make sure there clean and gaped properly . you may want to replace them .
Give the throttle tubes and butter fly's a good cleaning with seafoam or TB cleaner and make sure they sparkle , carbon build up can cause all kinds of problems . Use a tooth brush ( it works for me )
Replace the filter if it's clogged or dirty .
Check your battery connections and make sure there clean and tight .
I would also run some sea foam with your fuel to clean out your fuel injection system . 1 ounce per gal works for me . You may want to run this for the first 2 or 3 tanks .

I hope this little bit helps you narrow it down . I'm sure others will post more ideas on what it might be ....
 
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Old 01-13-2017, 08:37 PM   #3
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You might read this and see if it helps
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Old 01-13-2017, 08:39 PM   #4
cnc   cnc is offline
 
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If it cranks and won't start after raining, probably your plug wires or connections at the coil. Same thing possible if it is damp or a heavy dew when cool. Instead of the full current going to the plugs through the plug wires the dampness is helping it is bleeding off to ground.
Try this, start the bike up in the dark and spray some water out of a plant mister or old windex bottle right on the plug wires, move them around a bit with an insulated screw driver. What you are looking for is arcing from the plug wires to the motor. Even if you don't see any on a 17 year old bike it is time to change the plug wires. IMO.
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Old 01-13-2017, 08:41 PM   #5
waldowales   waldowales is offline
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Get yourself some cleaning solvent and go over all the high tension ignition components, from the igniters to the wires to the spark plugs, and make sure they are sparkling clean and dry, then get a can of Gunk Ignition Sealer and spray them all down. Post back if that doesn't cure it.



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Old 01-13-2017, 08:48 PM   #6
ringadingh   ringadingh is offline
 
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Mine did the same thing, it was the plug wires, they are easy to replace. Unscrew them from the ignition coils. It can also be a battery that is starting to get weak as well.
These bikes need a good battery to fire, one that is getting weak will crank and crank but not fire.
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Old 01-13-2017, 09:41 PM   #7
Bad55taco   Bad55taco is offline
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Sorry im new to this. It is mostly stock. Except for the cobra drag pipes and when i bought it the gasstank was rusty so i had it professionally cleaned and sealed. The temp senser is stuck open so i use a swich to shut off the fan. Battery is brand new. And is reading 13.8 volts.2 of the sparkplus wires fit on the plugs kinda loose but it was my understanding that you only need one plug per head to start. But hey i work HVAC not auto lol
 
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Old 01-13-2017, 09:58 PM   #8
Bad55taco   Bad55taco is offline
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Sorry the switch is stuck closed fan never shuts off unless i do it manually

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Old 01-14-2017, 09:32 AM   #9
MAS Tequila   MAS Tequila is offline
 
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Plug wire ends and wires.

I had it happen several times, then after changing the wires it hasn't happened again.

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Old 01-14-2017, 12:20 PM   #10
Loafer   Loafer is offline
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Try everything the above say. I would also add some dielectric grease to the key and put it
in the ignition switch, work the key around until you are sure that the grease is in there.
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Old 01-14-2017, 01:30 PM   #11
Bad55taco   Bad55taco is offline
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Ok i will swap them idk why its doing it just let it sit for 2 days rained yesterday but was dried off warm day and still did it

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Old 01-15-2017, 06:14 PM   #12
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Quote:
Originally Posted by Loafer View Post
Try everything the above say. I would also add some dielectric grease to the key and put it
in the ignition switch, work the key around until you are sure that the grease is in there.
With all due respect Gerry I think you will find all you are doing is lubing the key and tumblers in the lock, it will never make it to the individual contacts that way, or at least I hope it won't, they should be sealed from each other.
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Old 01-17-2017, 02:32 PM   #13
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If its failing to start in damp conditions, do as they say, it should start. Dampness can stay in switches and connectors for days, even weeks. And guess what, that dampness can cause corrosion and resistance. For a engine to run, you need fuel, spark and compression. Just because the injectors are clicking, it means the injectors are actuating, not that fuels flowing through them. You have to check these things thoroughly.
The FI bikes are extremely sensitive to voltage! You gotta spin it over cleanly and fast and still have enough juice to activate the EFI with full voltage.
Dampness could cause wires, connectors or both to wimp out. Anything electrical can be suspect, most its confined to ign. switches, coil wires, plug ends, EFI connectors, even your handlebar kill switch. Just check things thoroughly....
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Old 01-17-2017, 04:34 PM   #14
MAS Tequila   MAS Tequila is offline
 
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Somebody had a similar problem and couldn't figure it out for days.

He swapped new plugs in, and the beast roared to life.

You never know where the last little droplet of moisture might be hiding.

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