February 4th, 2012, 02:17 AM | #1 |
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Name: Murphey
Location: Eastern Washington
Join Date: Apr 2011 Motorcycle(s): 2002 Honda 919, 2004 Ninja 500R NAKED Posts: A lot.
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Is full choke on a cold engine bad???
Just wondering if its harmful to my bikes engine to have the choke set at 4k rpms when I first start the bike? Usually if its really cold and/or has been sitting for a long time it takes full choke to get it to start up and itll go to 2500 rpms then after a short while will move up to around 4k, at this point I'm busy putting my gear on and what not so I can't always go to the bike and reduce choke. Is 4k rpms gonna hurt the engine? Or does it really need to be revved high for cold revving to cause damage?
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February 4th, 2012, 07:03 AM | #2 |
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Name: Frugal
Location: Dallas/Fort Worth (DFW)
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It's best to adjust the choke to keep the RPMs under 2,500. Generally if you hang around the bike for a minute and adjust the choke as needed you'll get a nice stable idle while you go put on gear.
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February 4th, 2012, 08:58 AM | #3 |
Russian Ninja :)
Name: Andrei
Location: Ocean City, MD
Join Date: Oct 2011 Motorcycle(s): 2012 Triumph Street Triple R, 2009 Yamaha FZ6, 2010 Kawi 250r (sold) Posts: 335
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When I start the cold bike this time of the year, I give it full choke. RPMs only go to about 2000 at first. In 20 sec or so, I leave it at about half choke, and ride off. By the time, I get to the first traffic light, my choke is off.
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February 4th, 2012, 10:48 AM | #4 |
ninjette.org member
Name: Joon
Location: Orange County, CA
Join Date: Feb 2011 Motorcycle(s): 2011 Ninja 250R Posts: 164
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I can't speak from a mechanical point of view but I would go by the manual and keep it under 2,500rpm. During my first month or so, I did exactly what you did; start the bike and leave the choke on at 2500. I left to get gear and whatnot. I came back and the bike was roaring at 4-5k. I could smell something burning and that scared me, and I haven't done that since. If you need to be away, adjust the choke from the start so that even at near full warm-up five minutes later, the rpm wouldn't get above 2500. It may take a bit longer to warm up than choking at a higher rpm, but you know the bike is safe even if you get a call/whatever and come back to the bike in 5-10 minutes.
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February 4th, 2012, 11:45 AM | #5 |
Super Noob
Name: Alex
Location: Mobile, AL
Join Date: Oct 2011 Motorcycle(s): '09 Kawasaki Ninja 250R, '84 Honda Spree 50cc Posts: A lot.
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Why not put on your gear first, crank the choke full on and ride away. It's the recommended way after all.
Here's a link that I found extremely helpful and I live by it>> http://faq.ninja250.org/wiki/Warming_up_your_engine |
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February 4th, 2012, 11:57 AM | #6 | |
Russian Ninja :)
Name: Andrei
Location: Ocean City, MD
Join Date: Oct 2011 Motorcycle(s): 2012 Triumph Street Triple R, 2009 Yamaha FZ6, 2010 Kawi 250r (sold) Posts: 335
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Quote:
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2009 Fazer (2009 Yamaha FZ6), 2012 Triumph Street Triple R |
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February 4th, 2012, 12:42 PM | #7 |
ninjette.org certified postwhore
Name: Murphey
Location: Eastern Washington
Join Date: Apr 2011 Motorcycle(s): 2002 Honda 919, 2004 Ninja 500R NAKED Posts: A lot.
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wow I'll definitely switch to that method. usually just start up on choke throw on gear flip off choke and go. usually keep it around 2500 but been a few occasions where it goes to 4k, hope I haven't caused any damage or lost compression or anything
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