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Ron-M

Engine heat

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Ron-M

All,

 

Need a little assistance with an engine heat issue I am having on my new 1250RT.  1300 on the odometer.  I have not read anywhere, where someone has had an engine heat problem with either the wethead or the 1250.  However,  I am.  My 2007 RT, no heat issues.  This 1250 engine, I get heat, especially in my left shin area that gets very uncomfortable, almost to the point of burning.  I put my gloved hand down in the area, and my glove comes away very warm.  Although there is heat on the right side, it is nowhere close to the heat emitted on the left side.  I checked the coolant level and it is at the "max" line.  This makes my ride not enjoyable.  Any suggestions.  I have not talked to a dealer yet.  I wanted to throw it out here first.  

 

Thank you,

Ron

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TEWKS

A bit different but not noticeable on a 2014 RT. What's been your temps while riding it? Though that shouldn't matter much. Gear? Boots and at least jeans? :dontknow: Good luck finding a solution.

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Ron-M

Hi Pat.  My gear is the same as it always has been, so no change there.  When I put my hand down to feel where it is coming from, I believe it might be right asbpve the cylinder head. It could be coming from the radiator ports, being pushed out and down and then up.  After about 20 minutes it starts to get uncomfortable and the heat starts working its way up into the cockpit area.  start to feel it on my forearms.  It'a almost as if the air is not being deflected out far enough.   

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TEWKS

Ron, is the Engine Temp running in the normal range? Fan operating normally? Not that I can tell you what normal is because like I said, heat hasn't been an issue up here.  Any other 1250 RT owners experiencing excessive heat on the left side? :dontknow:

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Ron-M

I believe the temp is running normal,.  As far as the bars go on the gauge, it is running at 5 bars and the fan kicks in when it hits 6 or seven bars.   I had my run in service completed, and I do not recall the heat issue before that. Some thoughts that run through my head.  Do the service techs need to remove the fearing or any plastic or other parts to complete the service and did they not replace sonething? Is there a heat shield installed some where that is missing or not replaced? It just seems very odd.  

Maybe I should post this in the wethead section as well.  

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wbw6cos

On the left side, the port should have a wall all the way from the cooling fins.  The right side should have the same with the fan.   Did you check to see if anything was missing from that area?  They should not have needed to mess with any of the tupperware as the run-in service is bascially an oil change.   Hope you get it sorted.  I have not noticed any excessive heat issues on my  1250RT.  Hope you get it sorted.

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Carlisja

10,000 on my R1250RTP and no issue.  But it has been cold more often than not.  One day at 90 degrees on the interstate with no discomfort.  I wear an Aerostitch R3, blue jeans and boots.   Yes there are parts on the left side that may be out of place but not likely.  

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Bernie

I can only talk about a R1200RT- LC. I think the body work is the same and I don’t recall any heat shields or such.

The only thing I can think of is possible a block radiator or disturbed air flow through the radiators because of some accessories?

Did you change wind shields?  

If you have the Navigator 6, you can actually temperature readings from the engine and see if it is excessive.

Are you wearing mesh pants?

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Ron-M

Thanks for the thoughts guys.  I wear draggin jeans when I am riding around town and I have made no modifications to the motorcycle.  It is just frustrating because you can see how the hot air is supposed to flow, but for some reason my legs are catching it.  :88:

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ScottT

I've put over 12 thousand miles on my R1250RT and have never had any issue with engine heat. My riding jeans are Diamond Gusset. The only thing reasons I can imagine causing your issue with heat is that you are not tucking your legs in or the lower fairing panel is not secured completely and is allowing hot air to get by. . If allow my legs to get out into the air-stream, I do feel the heat from the radiators. I live in N. Texas and regularly deal with upper 90s and low 100s in the summer. I get less heat on the 1250 than I did on my 2005 1200RT. On the hexhead it was the oil cooler heat that I had to deal with.

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realshelby

I have ridden my Wethead RT in temps above 100 F. In mesh pants. Never have I had what I thought might be excessive heat onto my legs. In fact, I have written before that this bike has virtually no heat onto the rider compared to some other bikes I have owned. I will say that if you splay your knees out much they will get into the hot exhaust air from the radiator ports. You will figure that out quickly enough....

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Veefore

Having owned an 86' Concours back in the day, it was the BBQ Grille I measure all engine heat by.  A 90 degree day would leave my lower leg pink from heat.......my 15' RT?  Best heat management I've had on a ST bike having owned the Kawi, an ST1100 and a ST1300.  Results may vary though.

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Ron-M

Heading to the dealer Saturday to see what they have to say.  I would not worry about the heat factor if others experienced the same thing. But that is not the case.  I get nothing on the brake side and heat on the clutch side.  We'll see...........

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kkm

There is definitely more heat coming out of the left radiator as the coolant is routed through that one first,the right radiator is cooling it further after the left has already dropped the temperature of the coolant some. 

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Ron-M

Thanks KKM. Good to know.

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Little_Brit

WE don't get many days when we have to worry about excess heat in the UK but last week it was up in the high 80s and I took my 1250RT out to test my sports screen for effectiveness.  I cannot say that I noticed any "heat" on my lower half at all, remarkably un-hot on my Hood jeans in fact.  The screen however, was a great improvement up top - I could actually get a draught through the vents in my jacket and helmet!

 

By contrast I took my Yamaha MT 07 naked out the following day in similar temperatures and couldn't believe how hot my legs were getting from the engine. 

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Dan M

No heat issue on my 2020RT. I rode in 101F today. As long as I was moving it wasn't too bad. 

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AndyS

Hi Ron, I have NEVER experienced anything related to heat. Having ridden the Camhead and now the Wethead, I feel no deiiference.

One possible solution would be to fit the 'Weather Protection' kit as fitted to a lot of the police bikes.

If you do decide that route, you will need:

 

PLEASE DOUBLE CHECK AS THESE NUMBERS WERE FOR THE 1200

CHECK T0 MAKE SURE THEY ARE CORRECT FOR THE 1250!

 

46638548477 Trim cover, front left      -     1 off     

46638548478 Trim cover, front right    -     1 off     

46638548481 Left Center Covering    –     1 off     

46638548480 Right Center Covering   -      1 off     

46638548483 Covering Rear Left         -      1 off     

46638548484 Covering Rear Right       -      1 off    

46638548482 Covering Rear Right       -      1 off     

61138545036 Clamp                              -       4 off    

46638534939 Body Screw                     -      1 off     

46638521653 Body Screw                     -      8 off    

46638521659 Washer                             -     8 off     

46638532314 Insert Nut                        -      6 off     

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