Go Back   EcoModder Forum > EcoModding > Motorcycles / Scooters
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 05-31-2011, 05:47 PM   #1 (permalink)
Master EcoModder
 
sendler's Avatar
 
Join Date: May 2011
Location: Syracuse, NY USA
Posts: 2,935

Honda CBR250R FI Single - '11 Honda CBR250R
90 day: 105.14 mpg (US)

2001 Honda Insight stick - '01 Honda Insight manual
90 day: 60.68 mpg (US)

2009 Honda Fit auto - '09 Honda Fit Auto
90 day: 38.51 mpg (US)

PCX153 - '13 Honda PCX150
90 day: 104.48 mpg (US)

2015 Yamaha R3 - '15 Yamaha R3
90 day: 80.94 mpg (US)

Ninja650 - '19 Kawasaki Ninja 650
90 day: 72.57 mpg (US)
Thanks: 326
Thanked 1,312 Times in 966 Posts
EOC warning

Engine off coasting with motorcycles can ruin the transmission as many have engine oil pressurized lubrication systems as a ninja250 owner found out the hard way when coasting down on the dyno with the engine off.
.
I would post the link to the Ninjette forum so you could ask him about it but I am locked out from posting links.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 05-31-2011, 05:49 PM   #2 (permalink)
Master EcoModder
 
sendler's Avatar
 
Join Date: May 2011
Location: Syracuse, NY USA
Posts: 2,935

Honda CBR250R FI Single - '11 Honda CBR250R
90 day: 105.14 mpg (US)

2001 Honda Insight stick - '01 Honda Insight manual
90 day: 60.68 mpg (US)

2009 Honda Fit auto - '09 Honda Fit Auto
90 day: 38.51 mpg (US)

PCX153 - '13 Honda PCX150
90 day: 104.48 mpg (US)

2015 Yamaha R3 - '15 Yamaha R3
90 day: 80.94 mpg (US)

Ninja650 - '19 Kawasaki Ninja 650
90 day: 72.57 mpg (US)
Thanks: 326
Thanked 1,312 Times in 966 Posts
link

Search the Ninjette forum for Dyno Run on my 09 SE Ninja 250R
  Reply With Quote
Old 05-31-2011, 06:23 PM   #3 (permalink)
dcb
needs more cowbell
 
dcb's Avatar
 
Join Date: Feb 2008
Location: ˙
Posts: 5,038

pimp mobile - '81 suzuki gs 250 t
90 day: 96.29 mpg (US)

schnitzel - '01 Volkswagen Golf TDI
90 day: 53.56 mpg (US)
Thanks: 158
Thanked 267 Times in 210 Posts
Bummed today, I think I toasted my clutch

duly noted, guy says if you tow a ninja 250 without taking off the chain it will lock up within 10 minutes. Still it should be able to handle some coasting alternating with a running engine.
__________________
WINDMILLS DO NOT WORK THAT WAY!!!
  Reply With Quote
Old 05-31-2011, 06:45 PM   #4 (permalink)
Master EcoModder
 
Ryland's Avatar
 
Join Date: Jan 2008
Location: Western Wisconsin
Posts: 3,904

honda cb125 - '74 Honda CB 125 S1
90 day: 79.71 mpg (US)

green wedge - '81 Commuter Vehicles Inc. Commuti-Car

Blue VX - '93 Honda Civic VX
Thanks: 867
Thanked 433 Times in 353 Posts
Of course if the engine is idleing you should be able to let it coast out of gear for hours without causing any issues, right?
My Honda's have, for the most part, ball bearings on all of the shafts and the little bit of oil that is in there should be able to handle running with the few drops of oil that is left after you shut the engine off.
  Reply With Quote
Old 05-31-2011, 09:20 PM   #5 (permalink)
Master EcoModder
 
Join Date: Sep 2009
Posts: 5,927
Thanks: 877
Thanked 2,018 Times in 1,302 Posts
I usually just pull the clutch lever in and coast in gear, with the engine running. Don't see how that could be a problem. I was thinking about shutting the engine off, but after reading this I am glad I didn't.

regards
Mech
  Reply With Quote
Old 05-31-2011, 10:11 PM   #6 (permalink)
dcb
needs more cowbell
 
dcb's Avatar
 
Join Date: Feb 2008
Location: ˙
Posts: 5,038

pimp mobile - '81 suzuki gs 250 t
90 day: 96.29 mpg (US)

schnitzel - '01 Volkswagen Golf TDI
90 day: 53.56 mpg (US)
Thanks: 158
Thanked 267 Times in 210 Posts
I'm not worried about it for coasting a block at a time. Why would it weld up with no load on it?
__________________
WINDMILLS DO NOT WORK THAT WAY!!!
  Reply With Quote
Old 05-31-2011, 11:26 PM   #7 (permalink)
Master EcoModder
 
sendler's Avatar
 
Join Date: May 2011
Location: Syracuse, NY USA
Posts: 2,935

Honda CBR250R FI Single - '11 Honda CBR250R
90 day: 105.14 mpg (US)

2001 Honda Insight stick - '01 Honda Insight manual
90 day: 60.68 mpg (US)

2009 Honda Fit auto - '09 Honda Fit Auto
90 day: 38.51 mpg (US)

PCX153 - '13 Honda PCX150
90 day: 104.48 mpg (US)

2015 Yamaha R3 - '15 Yamaha R3
90 day: 80.94 mpg (US)

Ninja650 - '19 Kawasaki Ninja 650
90 day: 72.57 mpg (US)
Thanks: 326
Thanked 1,312 Times in 966 Posts
30s

His trans made it for 30 seconds of coasting down on the dyno with the engine off. He tore it down and found 5th gear welded to the shaft. All of the other dyno videos I have seen show the rider blipping the throttle of a running engine all the while as they slowly brake the drum in order to lube the trans. Coasting at idle with the clutch in is no problem.
  Reply With Quote
Old 06-01-2011, 01:37 AM   #8 (permalink)
Master EcoModder
 
alvaro84's Avatar
 
Join Date: Jul 2010
Location: Fehérvárcsurgó, Hungary
Posts: 384

Teresa - '04 BMW F650CS
Motorcycle
90 day: 80.53 mpg (US)

The YARDIS - '99 Toyota Yaris 1.0
90 day: 59.52 mpg (US)
Thanks: 4
Thanked 11 Times in 10 Posts
I often coast more than 30s with Teresa, both engine on and off, mostly with clutch in, rarely in neutral. I've been doing this for several tens of thousands of kilometers.
No problem so far, but she's a different bike, so it may not apply to the Ninjette (Teresa is a BMW F650CS).
  Reply With Quote
Old 06-01-2011, 10:00 AM   #9 (permalink)
Master EcoModder
 
sendler's Avatar
 
Join Date: May 2011
Location: Syracuse, NY USA
Posts: 2,935

Honda CBR250R FI Single - '11 Honda CBR250R
90 day: 105.14 mpg (US)

2001 Honda Insight stick - '01 Honda Insight manual
90 day: 60.68 mpg (US)

2009 Honda Fit auto - '09 Honda Fit Auto
90 day: 38.51 mpg (US)

PCX153 - '13 Honda PCX150
90 day: 104.48 mpg (US)

2015 Yamaha R3 - '15 Yamaha R3
90 day: 80.94 mpg (US)

Ninja650 - '19 Kawasaki Ninja 650
90 day: 72.57 mpg (US)
Thanks: 326
Thanked 1,312 Times in 966 Posts
pressure lube

Some bikes use engine oil pressure to lube the trans. Some use a splash lube and wouldn't care about coasting with the engine off as much. If the trans seizes from EOC, it can lock the rear wheel sending you down.
  Reply With Quote
Old 06-01-2011, 10:47 AM   #10 (permalink)
dcb
needs more cowbell
 
dcb's Avatar
 
Join Date: Feb 2008
Location: ˙
Posts: 5,038

pimp mobile - '81 suzuki gs 250 t
90 day: 96.29 mpg (US)

schnitzel - '01 Volkswagen Golf TDI
90 day: 53.56 mpg (US)
Thanks: 158
Thanked 267 Times in 210 Posts
Yes, any rider is aware of the ramifications of the engine or trans locking up (another reason why it is good to have the clutch on the output). I'm just trying to understand the conditions under which this happened and determine if the diagnosis is accurate, lots of folks have gone lots of miles EOC on bikes with no reports like this.

Also, you could provide some sort of link, leave off the http, so we are on the same page. The guy I read about was using nitrous on a 250 on a dyno, no suprise that stuff is breaking.

__________________
WINDMILLS DO NOT WORK THAT WAY!!!

Last edited by dcb; 06-01-2011 at 11:05 AM..
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com