A never ending thread of "hard starting"


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bohdan
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A never ending thread of "hard starting"

Postby bohdan » Wed Jan 14, 2015 1:30 pm



Gents, I need your help in somewhat of diagnosing my problem. I have tried researching the hard starting issues. Checked the battery, 12.6 standing and 11.8 at starting. It seems that I have to hold the starter button longer to get it started and when it does, it seems it nibbles at firing slightly and then it comes on full strength when throttle is rolled on. In addition a gasy smell coming out of the exhausts. So I am perplexed........

This starting issue started after rebuilding clutch and replacing slave. Go figure the effects...... these are un-related.

If battery good and gas smell, would this lead me to believe that this is ignition?

I can start and stop continuously in a row perfectly. If the bike sits five minutes, back to square one. Does anybody have any suggestions? Mighty obliged.......



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virgilmobile
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Re: A never ending thread of "hard starting"

Postby virgilmobile » Wed Jan 14, 2015 3:15 pm

You might inspect your spark plugs.There condition will tell much.
Read.."how to read your spark plugs".
You can also replace them.Perhaps with a split fire plug.
Remember also,the 1500 does not have a spark till there has been one full revolution of the crankshaft.This can make it easy to "flood" the bike.Be sure you leave the throttle closed and the "choke" off unless it's needed for a cold start.
A weak spark at the plugs due to poor wires or caps can make it hard to start also.

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virgilmobile
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Re: A never ending thread of "hard starting"

Postby virgilmobile » Wed Jan 14, 2015 3:48 pm

By the way...Your comment....
"If battery good and gas smell, would this lead me to believe that this is ignition?"....
Good observations and diagnosis....

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ct1500
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Re: A never ending thread of "hard starting"

Postby ct1500 » Thu Jan 15, 2015 12:21 am

bohdan wrote:Gents, I need your help in somewhat of diagnosing It seems that I have to hold the starter button longer to get it started and when it does, it seems it nibbles at firing slightly and then it comes on full strength when throttle is rolled on. In addition a gasy smell coming out of the exhausts. So I am perplexed........I can start and stop continuously in a row perfectly. If the bike sits five minutes, back to square one. Does anybody have any suggestions? Mighty obliged.......


Ignition systems on the 1500 are pretty much bullet proof. :D Ignition or spark quality would not be RPM dependent. We have all left our kill switches to off accidently for a couple of attempts while trying to start and it does not stink of gas and will go on to start up perfectly. Something is loading the intakes/carbs up with gas and will take a few minutes to do so which is why it will restart right away but if left to sit is drowning the cylinders giving the problem. Rolling on the throttle and smoothing out is simply clearing out the excess fuel giving the rich mixture gas smell.

As advised check spark plug tip conditions for clues as to which bank(s).
This is what I do
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bohdan
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Re: A never ending thread of "hard starting"

Postby bohdan » Thu Jan 15, 2015 7:49 am

Thanks for tips gents. While I was thinking about this, it dawned on me what I did different than I have before. Notice that it started doing this when I did the slave unit replacement. So I thought to myself, what did I do that could possibly be different? the only thing that is different is the charcoal canister that is my bike (California emmissions) that I didn't know I had till the clutch exercise. IS there any vacummn line that goes to this canister that I may have left off? Creating this scenario? Mighty obliged.....

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ct1500
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Re: A never ending thread of "hard starting"

Postby ct1500 » Thu Jan 15, 2015 10:09 am

With the engine running pull the vacuum line(s) off the nos. 4 or 6 intake manifold (depends on year if one or two) and check for gasoline and after shut down. The CA system is designed to handle fuel vapors only and no hose should be wet with gas. Start pulling them off and also check for gas in the lines especially the ones to carbs. A stuck float in the carb could also be the cause.
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bohdan
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Re: A never ending thread of "hard starting"

Postby bohdan » Fri Jan 16, 2015 8:05 am

Thanks guys. So it doesn't look like the canister doesn't have any effect. I guess it is a common opinion the ignition systems are bullet proof and indestructible, as a matter of probability. I replaced the auto shut off valve about 10 years ago. Possibly it is going bad and has enough vacuum to just barely get it going. Partially bad? I guess the check would be to crank the bike with the kill switch in the off position and see if I smell gas? mighty obliged.

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bohdan
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Re: A never ending thread of "hard starting"

Postby bohdan » Wed Jan 21, 2015 8:00 am

Update. Interesting enough, it appears that perhaps the issue to this is very simple. Went through the bike, auto shut off, fuel pump, some vacuummn lines. I then did the air filter. It has been a while and it was noticeable. Probably on the brink of maybe very "blocked". It is my bad fro being a while on replacing it since I hate spending the $42 for a new one. This did the trick. Immediate start up and not gas smell. I guess I was choking the engine and with the choke on, was a double whammy. I suspect that I will get better mileage too.

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Re: A never ending thread of "hard starting"

Postby OldZX11Rider » Fri Jan 08, 2016 3:18 pm

I know this is an old thread but I'm glad I found it. Been having trouble starting my 1500 but only the first start of the day. I also get the gas smell before it starts almost every time.
After getting it started, I can ride somewheres and park it for an hour, and it'll pop right off and run like a new one. Its just getting it started the first time that's a problem.
The PO told me it doesn't like to be choked at all when its warm out. Anyhow, next time I start taking parts off again, going to have a good look at that air cleaner. :D


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