06-25-2016, 01:41 PM | #17 |
Join Date: Apr 2009
Posts: 770
|
Damned Weld! dunno why(maybe cause so wet down here this year that vent COMPLETELY slipped my mind. THANKS for the "heads up"
__________________
Seer's First LAW-"FLY THE PLANE!", fail that, and nothing else matters. 12th Law- Consider what marvels you might do if only you had tomorrow to live over again. Third Law-When someone tells you some thing "Can't Be Done", what they're really saying is They can't do it!!14th Law-Just because something "IS", doesn't necessarily mean it SHOULD be.. Eighth Law-The only true personal security is anonymity.Ninth Law-Humans tend to learn very little when speaking.10th Law-Some lives ARE worth taking |
|
06-25-2016, 02:16 PM | #18 |
Join Date: Sep 2014
Location: Blue Ridge Mtns Ga
Posts: 437
|
FWIW. I have had an oil cooler on my Hawk the last 2000 miles. I ride a lot of highway at 55 to 60 mph. To date I have no oil consumption and zero issues with shifting, clutch or general performance. I was advised by the lead mechanic at RPS that if I intended to use my Hawk for long extended runs that engine temps may become an issue, he recommended an oil cooler. Almost all of the CG powered taxis/trucks in the third world have oil coolers. BMW GS's(1100cc) were oil cooled, the DR 650(650cc) oil cooled, the RE Himalayan(450cc) oil cooled. These bikes were designed for extended travel. My Hawk 250 is intended for travel hence I elected to put on an oil cooler and for $50, I consider it money well spent.
BTW, depending on the design and if it gets here in time, I would most certainly be intersted in the new oil cooler. Mine is prone to getting a bit muddy in it's current location.
__________________
Mark 2015 Haosen Hawk 250 2014 CRF250L 2014 CB500X Rally Raid Last edited by Wolftrax; 06-25-2016 at 02:18 PM. Reason: add |
|
06-25-2016, 05:30 PM | #19 |
Join Date: Jan 2016
Posts: 63
|
Wolftrax, taxis/trucks also called in some places tuk tuks need a oil cooler because of the engine location provides no air flow across the engine. Plus most of the new tuk tuks have a thermostat controlled fan on the oil cooler.
My reply was you do not need a oil cooler for OHV engines on motorcycles like the Hawk. Not commercial trucks, boat engines, tuk tuks and DOHC BMW. My drag bikes have oil coolers on them, but it does not mean I need one on a 250cc OHV Hawk. With my 30 plus years of building engines it's a total waste of money. Ya dammit I am old, now everyone can pick on the old man but still racing and it you think it works good for you or anyone put the oil cooler on. |
|
06-25-2016, 05:45 PM | #20 |
Join Date: Apr 2009
Posts: 770
|
At the risk of stating the obvious, your "drag" bikes run what, 9,10 seconds at hopefully high speeds? and you use coolers?
granted we're talking chick peas vs watermelons here but the principal advantages are the same whether "needed" or not, my ducatis have oil coolers, my yam dirt bike has an oil cooler, the klr's went all the way to water cooling, and personally, coolers just make me feel better on a dirt or high performance bike, YMMV. so as you say ,to each his own. I agree to disagree, Oh, I've been riding Mcycles thru mountains, deserts, snow, on five continents now for over 56 years my fav current ride is my 850 odd lb Triumph 1700 twin T-Bird LT. (bout 1250 lbs. w me and gear en route cross country and it carries over a gallon of serious synthetic Hell, I even still admire the figure of a young woman (40 to 60 or so LOL "Old", is more often than not, merely a state of mind
__________________
Seer's First LAW-"FLY THE PLANE!", fail that, and nothing else matters. 12th Law- Consider what marvels you might do if only you had tomorrow to live over again. Third Law-When someone tells you some thing "Can't Be Done", what they're really saying is They can't do it!!14th Law-Just because something "IS", doesn't necessarily mean it SHOULD be.. Eighth Law-The only true personal security is anonymity.Ninth Law-Humans tend to learn very little when speaking.10th Law-Some lives ARE worth taking |
|
06-25-2016, 05:49 PM | #21 | |
Join Date: May 2007
Location: Lac Du Flambeau, WI
Posts: 804
|
Quote:
Mobil Delvac Elite 15W40. Shifting begins to be a problem around 250* per my laser heat gun on the case right below the cylinder. I have seen 275* at higher elevations where it leans out. Took it out today for a 10 mile ride on county roads and never saw over 225*...... |
|
|
06-25-2016, 06:51 PM | #22 |
Join Date: Jan 2016
Posts: 63
|
SeerAtlas, Only on some of our bikes (coolers). It's all about the temp of the oil and we can somewhat control it when waiting in line. You want the perfect oil temp when you take off at the line, but you never get perfect temp most of the time.
mjstef, Mobil Delvac Elite 15W40 Is a very good oil. Now don't laugh... we use SuperTech from Walmart. Also we have a few ATVS and motorcycles with the Hawk style engines that we have used for years and we don't have any shifting or heat problems in the mountains or on the flat lands. |
|
06-25-2016, 07:01 PM | #23 |
Join Date: May 2007
Location: Lac Du Flambeau, WI
Posts: 804
|
I'm sure the exhaust back pressure creates a lot of extra unneeded heat as well. The catalytic converter in that pipe is pretty restricted from what I've seen. There's a huge difference between a cold engine and the clutch engagement and shifting compared to when it gets super hot. I'm going to see if I can find a port somewhere for a oil temperature gauge. From what I remember from years ago it takes 12 miles per hour to get any kind of efficient Cooling on an air-cooled engine. Many times we are going a lot slower than that. Also all the guys in Texas, Arizona, Nevada, etcetera who sit on these things in stop and go traffic would definitely benefit.
|
|
06-25-2016, 07:04 PM | #24 |
Join Date: May 2007
Location: Lac Du Flambeau, WI
Posts: 804
|
The biggest pain-in-the-butt in general is trying to get the bike in neutral once it is hot. You have to shut it off. If the clutch is adjusted where you can get it out of neutral when hot then it slips. I can find no happy medium. 300 miles on it so I would assume it's broken in.
|
|
06-25-2016, 08:18 PM | #26 |
Join Date: May 2016
Posts: 583
|
Super Tech is rebranded quaker state and exxon/mobil.
|
|
06-25-2016, 08:30 PM | #27 |
Join Date: Dec 2015
Location: Coastal NC
Posts: 537
|
most of my riding right now is throttle pegged followed by stop and go with basically zero cooling (results in major heat soak), I'm down for an oil cooler. but it has to fit the TT250.
__________________
-whatever you do, just be awesome. - 2008 Kawasaki Versys - 2016 CSC TT250 |
|
06-25-2016, 09:08 PM | #29 | |
Join Date: Jun 2016
Location: akwesasne, NY-13655
Posts: 2,220
|
Quote:
|
|
|
06-25-2016, 09:12 PM | #30 | |
Join Date: Jan 2012
Location: ChCh , NZ
Posts: 2,265
|
Quote:
they come with is there weak point... alloy is to soft can't do the bolts tight enough with out striping the thread to stop them turning in a fall...broken lever... i have them on my xt660 but replaced the mounting hardware with Zetta units... ..
__________________
09 XT660R ... 06 TTR250 ... 80 Montesa H6 125 Enduro... 77 Montesa Cota 348 MRR "Malcom Rathnell Replica"... Current resto projects.. 81 Honda CT110... 80 Kawasaki KL250A1... 11 Husaburg TE125 enduro... "sold" along with another 31... Lifan 125 Pitbike.. "stolen" ... KIWI BIKER FORUM...... http://www.kiwibiker.co.nz/forums/content.php All the best offroad rides in NZ... http://www.remotemoto.com/ E-mail... xtpete1@gmail.com |
|
|
|
|
|
|