Crank with difficult starting

[Les Johnson]

     Steve

      How old is your battery? Most times the battery is the cause of
this. I had one a year old that would crank it over great cold and hot
but it would not start hot.  Have yours checked out it might be the
cause.

    Les J    96GPZ1100



On Sat, Mar 24, 2012 at 6:23 PM, Art Johnson <art-j at shaw.ca> wrote:
> Occassionaly have a starting problem, where the gp'r won't fire even tough it cranks fine. turning the ignition off, just momentarily seems to do it. it starts right off after that.
>
> ----- Original Message -----
> From: "Steve Clark" <clarks at nbnet.nb.ca>
> To: "Art Johnson" <art-j at shaw.ca>
> Sent: Saturday, March 24, 2012 6:10:32 PM
> Subject: Re: Crank with difficult starting
>
> Don wrote
>
>> The Geep has been getting harder to start when warm. Cranks strongly, but
>> will barely catch and fire (today was a question after stopping for
>> fuel...). Cold, it starts up with the first stab almost every time.
>>
>> Don in GJ
>
> Things to check - Are your valves in adjustment?  Is the air filter clean?
> Is the thermostat keeping your bike cool as it should?  Is the choke working
> correctly - is it truly shutting off all the way?  Have the low speed carb
> screws been changed to something other than stock?  Are you sure that one or
> more of the carbs does not have a leaking needle valve allowing more gas to
> get to the motor from a over full carb or 2? - this would be good for start
> up in cooler weather.
>
> To state the obvious - you need spark - you have that the bike runs, you
> need air but a dirty air filter can make starting good but can make the bike
> get to much fuel during start up hot.  Valves is really about compression or
> the lack of - again starting a cold motor with less compression is less of
> an issue then when the motor is hot.  You need fuel but not to much or to
> little - if a needle valve is leaking a bit you again can be OK at startup
> but have issues when you try to start when warm/hot as there is extra gas.
> The low speed jet setting helps or hinders warm/hot starting (no choke
> needed starting) not enough fuel evaporates to quickly in a warm engine
> during starting and a little choke can help but that is also a sign there is
> something amiss - to much fuel will make things start good and you may not
> experience riding issues as you run most times on the slope / tamper of the
> carbs needle into the main jet/emulsion tube.
>
> "It doesn't SEEM to be loading up on fuel if I put it on prime"  thats good
> cause it should not - prime is the position
> you place the petcock in to flow fuel without the engine running and
> operating the petcock by vacum (this is how to get the carbs full of fuel if
> you have drained them etc).  The needle valves in the carbs control the flow
> and fuel level in the carb.
>
> Hope this helps locate the problem or at least eliminate possible issues.
>
> Steve
>
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