visionman
New Member
Posts: 2
Registered: Apr 10, 2018 7:12:02 GMT -7
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Post by visionman on May 30, 2018 15:11:21 GMT -7
Hi everybody:
I'm new here to the board, having just purchased a 2017 fz10 in April. The bike now has 1300 miles on it, oil changed at 600 and 1200 miles. It has had a cooling "funny" ever since I picked it up and I'm wondering what others have observed.
At 40 degrees outside and cruising at 70 mph, the temperature of the coolant sits at about 150 - 155 degrees. Today, with the temperature at 62 degrees, my coolant sat at 162-165 at 70 mph. When I pull off the freeway. the temperature quickly climbs to
220 degrees where the coolant fan kicks in.
I've talked to the dealer's service department twice, and they seem to think this is "within specs". I can't believe that...... every other vehicle I've owned has been able to control the coolant temperature to 170 - 200 degrees easily, at any temperature from 0 degrees to 110 degrees outside. I sounds like a classic case of the thermostat stuck partially open to me... but I'm getting nothing from the locals. I have had them email the regional tech guy, but I'm wondering what everybody here has noticed to see what your typical operating temperatures are.
Thanks!
Grant Bower --- Seattle, WA
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Post by evitzee on May 30, 2018 15:33:57 GMT -7
You're within specs, stop worrying. The cooling system has a relatively small amount of coolant and relies on radiators for the coolant AND the oil, when there is no, or reduced, air flow the temperatures rise quickly.
My ambient temperature today was 90 degrees and when running on the highway at 70-80 mph the coolant temp was 170 degrees but popped up quickly in any sort of slow down situation (stop sign, stop light, light traffic). That's just the nature of the beast, nothing to worry about.
Oh, welcome aboard. |
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Post by papawheelie on May 30, 2018 18:01:58 GMT -7
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kingcrimson
Junior Member
Posts: 94 
Likes: 22
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Post by kingcrimson on May 30, 2018 19:41:55 GMT -7
I concur with the other folks.
She's a sensitive lady, and it's normal for her to spike every now and then, especially when you've hit her a little hard then drop to idle for a few minutes then she may break 200°. Then once you get the cooling going again (riding) you should hover between 165° - 195°.
No worries. |
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wonger
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Registered: Sept 25, 2017 19:43:46 GMT -7
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Post by wonger on May 31, 2018 7:04:04 GMT -7
I concur with the other folks.
She's a sensitive lady, and it's normal for her to spike every now and then, especially when you've hit her a little hard then drop to idle for a few minutes then she may break 200°. Then once you get the cooling going again (riding) you should hover between 165° - 195°.
No worries. Right. Turn it off when it's at 200 or so after riding. Wait a couple minutes and start it again if you want to freak out. Heat keeps climbing while it's off and nothing is circulating. You're fine as long as the fans keep it from climbing above the 230 mark. |
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Post by RedAndBlack on May 31, 2018 7:48:47 GMT -7
Welcome to the forum!
You're good. I run this bike in the desert and routinely see temps over 200, have definitely seen 230 when stopping the bike. Totally normal. I've always used 245 as my "start to worry" point and really, no real damage is going to happen to these engines until almost 260.
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visionman
New Member
Posts: 2
Registered: Apr 10, 2018 7:12:02 GMT -7
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Post by visionman on May 31, 2018 10:52:29 GMT -7
Thanks, everyone!! I love this bike so much that I would hate to hurt it. This gives me piece of mind. I've done quite a bit of work on the bike, outfitting it for long-distance sport touring. Some parts are commercially available, some I made myself. I'm leaving on a trip tomorrow -- not on the Fz10  -- but I'll try to post when I get back. Thanks!! Grant Bower |
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mario
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Registered: Apr 4, 2018 4:44:17 GMT -7
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Post by mario on Jun 1, 2018 6:12:41 GMT -7
Yup, normal, this engine likes to generate A LOT of heat and without a lot of cold air passing over the radiator & oil cooler the temps rise very, very quickly, however as long as the fan kicks in and keeps the temps under control, all is good.
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kingcrimson
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Posts: 94
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Post by kingcrimson on Jun 1, 2018 7:02:24 GMT -7
Thanks, everyone!! I love this bike so much that I would hate to hurt it. Thanks!! Grant Bower Tell me about it, Grant.
Got my Roxanne up to 163mph yesterday morning (5:00am and thoroughly tucked, takes ~11s) on the Silver Strand here in San Diego, Coronado Island.
With everything I've blessed her with, I just can't seem to break that mark. I know it's not the ECU's rev limiter because its been extended by 750rpm. I suppose that's all she's got. In any event, that's good enough for me and what a effen rush! God bless her . . .
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chewy1abbey
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Registered: Jun 10, 2018 23:50:09 GMT -7
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Post by chewy1abbey on Jun 11, 2018 0:49:00 GMT -7
Could have air in the cooling system
I had air in mine causing overheating and drastic temps
After they flushed the system mine varies between 160 and 225
And no more overheating
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iwasatoad
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Registered: Feb 11, 2018 15:07:34 GMT -7
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Post by iwasatoad on Jun 13, 2018 2:19:43 GMT -7
i know from the factor right side fan on mine was making contact with the radiator and did not spin. did not notice it till first oil change at 503 miles
as i started it up and let it go till the fans or in this can fan kicked on at 220. just some thin to check.
avg high i see is 232-235 after parking key off from highway interstate speeds to 1 mile home ( key off key on to let fans cool down / restart after a min 30 sec key off )
just what i do.
highest was night 60 ish out in here in Wisconsin and deer / emergency stop from WOT out of corner carving.
was 240 when i glanced down to clutch it to side of road to collect myself.
if you see 240+ don't shut it down it will cause it to boil from fluid not flowing
but you should never see average of 240+ as 250 and beyond will pop the coolant cap
pending outside temp / pressure.
hope that helps put your mind at ease
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mario
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Registered: Apr 4, 2018 4:44:17 GMT -7
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Post by mario on Jun 14, 2018 0:42:53 GMT -7
...250 and beyond will pop the coolant cap pending outside temp / pressure. hope that helps put your mind at ease Erm....no it wont! If you understand how a coolant cap works you will know that once past the pressure rating on the cap (say 1.1 bar) the spring will open enough to allow fluid to pass into the expansion tank. Even if the expansion tank fills to the top it will just start to come out of the overflow pipe near the clutch cover on the engine. At no point, ever will the cap "pop off" unless it was not on properly to begin with or has damage to the cap or radiator neck which prevents proper locking of the cap to begin with. On a working cooling system with no damage and a cap that is secured properly, it will never pop off. |
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Deleted
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Registered: Apr 26, 2024 16:18:39 GMT -7
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Post by Deleted on Jun 22, 2018 8:56:01 GMT -7
When I pull off the freeway, the temperature quickly climbs to 220 degrees where the coolant fan kicks in. Well, now you'll learn something new: ALL of your vehicles do that  . But to avoid almost every owner doing the same thing as you (complaining to dealers something might be wrong), the coolant temperature gauges are buffered, meaning they park themselves at the same spot from 180 to 235ºF, or thereabouts. Only when temperature climbs above that, they start moving again. As you found out, motorcycles rarely have buffered gauges (which I very much like), except Goldwings and such, with car-like dashes. The worst bike I've owned in this regard was a K1200RS BMW, where the temp needle climbed almost to redline before the fans kicked-in. Much better to have numbers, since you know what the actual temperature is, rather than having just a needle. Hope this helps, brother. |
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Deleted
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Registered: Apr 26, 2024 16:18:39 GMT -7
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Post by Deleted on Nov 9, 2018 20:26:35 GMT -7
Didn't like to see coolant temperatures in the 160s on my last (actually first) trip a few days ago, so decided to search the service manual for answers. Turns out that the minimum temperature can be 160ºF, so all is well. Thermostat fully opens at 185ºF, like I thought. But strange that either Yamaha or the EPA allowed it to go that low, since oil temperature is probably even lower with an air-to-oil cooler. Oh well. Glad I ordered 5/40 Castrol Power1 4T oil to lubricate better at those low temperatures. Attached below is the thermostat graph from the service manual  . By the way, checked everywhere at what temperature fans are supposed to kick in, and absolutely nothing. Don't even know if both turn on at the same time or not. One of these days need to let the bike idle until both fans turn on so I know in case of future issues. Hope this helps.  |
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-- but I'll try to post when I get back.
. But to avoid almost every owner doing the same thing as you (complaining to dealers something might be wrong), the coolant temperature gauges are buffered, meaning they park themselves at the same spot from 180 to 235ºF, or thereabouts. Only when temperature climbs above that, they start moving again. As you found out, motorcycles rarely have buffered gauges (which I very much like), except Goldwings and such, with car-like dashes. The worst bike I've owned in this regard was a K1200RS BMW, where the temp needle climbed almost to redline before the fans kicked-in. Much better to have numbers, since you know what the actual temperature is, rather than having just a needle. Hope this helps, brother.
. By the way, checked everywhere at what temperature fans are supposed to kick in, and absolutely nothing. Don't even know if both turn on at the same time or not. One of these days need to let the bike idle until both fans turn on so I know in case of future issues. Hope this helps.