April 21st, 2021, 03:58 PM | #1 |
The Violet Vixen
Name: Yakaru
Location: Issaquah, WA & Las Vegas, NV
Join Date: Jun 2012 Motorcycle(s): Perigee (250), Hotaru (250), Saturn (300), Pearl (300), Zero (S1000RR), Chibi (Z125), Xellos ('18 HP4R) Posts: A lot.
MOTM - Jun '16
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Winter recovery
Was dealing with the aftermath of winter on my 250s now that spring has returned, and since it's my first winter with them (way back when I had my first years ago was in Nevada/SoCal so there was no winter) had a few issues causing the engine to not want to turn over. Suspecting bad gas or gunky carbs I emptied the tank, opened up the carbs and sprayed them out, then locked everything back up and put in fresh gas and primed the petcock.
My race 250 seems to be running ok, but @Momaru's 250 is behaving strangely -- more specifically I turn the choke on and the bike starts and quickly revs quite high (6-7k RPMs) but even if I leave it there for a good 30 seconds to a minute if I turn it off it falls down to sub-1000 and stalls after a moment or two. I tried to go over the carb lid screws and the hose clamps to make sure they were solidly torqued but otherwise I'm at a loss for what to do to diagnose further. Can anyone advise?
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"most folks racing this bike get it in a competitive state of being with much less invested than you've already put in Saturn." - Alex |
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April 21st, 2021, 04:31 PM | #2 |
Guy Who Enjoys Riding
Name: Jim
Location: North Carolina
Join Date: Jul 2016 Motorcycle(s): Ninja 250 Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
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It sounds like classic symptoms of clogged carb passages. These little carbs can get gunked up very quickly if left sitting without a fuel preservative mixed in.
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April 21st, 2021, 04:46 PM | #3 |
The Violet Vixen
Name: Yakaru
Location: Issaquah, WA & Las Vegas, NV
Join Date: Jun 2012 Motorcycle(s): Perigee (250), Hotaru (250), Saturn (300), Pearl (300), Zero (S1000RR), Chibi (Z125), Xellos ('18 HP4R) Posts: A lot.
MOTM - Jun '16
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Figured odds were good for that being the cause; looks like I'll have to pull the whole thing off and scrub it out then. Time to take a lot of pictures so I remember what goes where when I reconnect it all.
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"most folks racing this bike get it in a competitive state of being with much less invested than you've already put in Saturn." - Alex |
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April 21st, 2021, 05:51 PM | #4 |
ninjette.org certified postwhore
Name: Gordon
Location: new york
Join Date: Sep 2009 Motorcycle(s): '95 DUCATI 900SS/SP '07 DUCATI SS800 '19 HONDA CBR650R Posts: A lot.
MOTM - Nov '18, Mar '17
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THE poop, IMHO.
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gordon@customcarbservices.com Custom Carb Service www.customcarbservices.com |
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