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General Category => General Discussion => Topic started by: Chuck in Indiana on April 02, 2015, 05:28:45 PM

Title: Scura cold start issue
Post by: Chuck in Indiana on April 02, 2015, 05:28:45 PM
Remember, this bike sits.. a lot.. right beside the ocean. Normally on the Scura or Rosie, you turn on the switch, hold just a smidgen of throttle, punch the button, and Vroooom.
This time out, it's crank crank, hunt for just the right throttle position, hold my mouth *just*right, then it fires on one cylinder then both. Every time so far this trip out, cold start is the same. So far, I've pulled the TPS connector, relays and fuses, and spritzed them with DeOxit, same scenario.
Is this indicative of dirty injectors?
After it struggles to life, it runs normally.
Title: Re: Scura cold start issue
Post by: Markcarovilli on April 02, 2015, 05:41:27 PM
Chuck

Could be - can't hurt to try some Seafoam in the gas....

Mark
Title: Re: Scura cold start issue
Post by: fotoguzzi on April 02, 2015, 05:43:51 PM
clean /tighten battery connections?
Title: Re: Scura cold start issue
Post by: Vasco DG on April 02, 2015, 06:06:35 PM
Given the fact it sits for long periods my first action would be dump the fuel, scrap and replace the fuel filter and refill with fresh petrol and a dose of 'Jecter cleaner. Oh, and chuck some new plugs in it. Stale fuel, especially ethanol laced fuel, is murder on plugs.

Pete
Title: Re: Scura cold start issue
Post by: Chuck in Indiana on April 02, 2015, 08:16:29 PM
Given the fact it sits for long periods my first action would be dump the fuel, scrap and replace the fuel filter and refill with fresh petrol and a dose of 'Jecter cleaner. Oh, and chuck some new plugs in it. Stale fuel, especially ethanol laced fuel, is murder on plugs.

Pete

I've run enough fuel through it already, that it ought to be fresh. I'll try new plugs, they're cheap. Injector cleaner, too. Once it gets running, it still runs like a scalded dawg. Just figured "somethin ain't rat."  ;D
Title: Re: Scura cold start issue
Post by: guzzisteve on April 02, 2015, 08:30:11 PM
Try cleaning out the air bypass screws, doesn't hurt. Don't forget to count were they're at.
All that stuff gets gooey.
Title: Re: Scura cold start issue
Post by: oldbike54 on April 02, 2015, 08:36:36 PM
 It thinks it is an airhead beemer   ~;

  Dusty

Title: Re: Scura cold start issue
Post by: Moto Fugazzi on April 02, 2015, 09:10:46 PM
Techron FI cleaner works great. My first thought is the plug wires are getting moist from being too humid. Wouldn't hurt to change those, or spritz with WD-40 to remove the moisture.
Ken
Title: Re: Scura cold start issue
Post by: Chuck in Indiana on April 03, 2015, 01:18:34 PM
Try cleaning out the air bypass screws, doesn't hurt. Don't forget to count were they're at.
All that stuff gets gooey.

And the winner of this session of Stump the Guru is GuzziSteve! Come on down and take a bow, Steve!  ;D

From the way it was acting, this seemed like the most logical place to start. Yep, there was black goo (technical term) on both bypass screws. SPritzed them and the seats, let it dry, but them back in, and crank..Vroom. Just like it usta be.. ;D
Title: Re: Scura cold start issue
Post by: Vasco DG on April 03, 2015, 01:45:28 PM
I think your plan to take the Scura back to Indiana is looking more sage by the day.....
Title: Re: Scura cold start issue
Post by: Chuck in Indiana on April 03, 2015, 02:00:45 PM
I think your plan to take the Scura back to Indiana is looking more sage by the day.....

Yeah. The Mighty Scura is rusting and corroding. I don't *care* what happens to the Commie Thumper, and from all accounts I've read, they are fine handling machines.