Armchair diagnostics- hard warm start

Steve Northrop blackgpz at
Sun Mar 28 19:50:11 PDT 2010

Could be the battery, I replace mine every 2 years because it clears up 
"mysterious" ignition problems. Have you checked the carb boots? Tight 
against the head and tightly clamped around the carbs? Do you have the caps 
off the pilot screws? Start turning them out 1/2 turn at a time until it 
starts easier. BTW, don't touch the throttle on cold or hot starts. Pumping 
the throttle does nothing because there aren't any accelerator pumps on the 

Steve in Western NY
'96 GPZ1100
'08 KLR 650
'08 Tuono Factory
"You Can't Fix Stupid", Ron White

----- Original Message ----- 
From: "Don Wilcox" <leanintree at>
To: "GPZ List" <gpzlist at>
Sent: Sunday, March 28, 2010 7:32 PM
Subject: Re: Armchair diagnostics- hard warm start

> Only 2 years. I didn't care for it this winter in the garage like I should
> have, but a fresh charge prior to rising from the winter sleep touched it
> off with the first stab. Then 20min later, it was a bear to start. I may
> replace the battery just for giggles anyway, but it was like this towards
> the end of last summer already.
> Don
> On Sun, Mar 28, 2010 at 4:17 PM, Charles Scappaticci 
> <scapco at>wrote:
>> How old is the battery?  That's as likely as a jetting problem. 
>> Otherwise.
>> Maybe clogged pilot jets as this gas they sell here is bullshit.
>> Charles S.
>> Don Wilcox wrote:
>>> Hi guys!
>>> Well, it's time to look at the problem that was bedeviling me at the end
>>> of
>>> last season...
>>> The Almighty Geeper requires full choke to start easily (2 throttle 
>>> pumps,
>>> full choke then starter with NO throttle application), and now is being
>>> hard
>>> to restart once warm. I'll ride somewhere, stop for a cookie (or
>>> whatever),
>>> then when I try to restart, I have to crank the hell out of it, choke,
>>> prime, couple pumps, no pumps...  Seems like a couple of healthy pumps
>>> then
>>> starting with NO throttle does the trick most often, but it's still
>>> frustrating and it floors me that I can start cold easier than warm.
>>> I'll tell you now, I haven't had the carbs off since the
>>> de-californication
>>> of '07 for my sanities sake. But I'm betting it may be time to check the
>>> jet
>>> setup. Just calling it a hunch.
>>> Thoughts oh wised and learned ones?
>>> Don in GJ
>>> .

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