Overheating-Offroad - KTM Forums: KTM Motorcycle Forum
 1Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 26 (permalink) Old 06-09-2015, 04:57 PM Thread Starter
Junior Member
 
Join Date: May 2015
Posts: 14
Overheating-Offroad

I recently purchased a 2008 530 EXC-r (many thanks to this forum for help with my clutch and sprocket issues). I have a new problem. When I'm riding trails slow in the North Carolina heat, after about 30 minutes or so my bike will start to lose power and eventually stall if I dip the rpms too low. It will usually start back up, but it definitely takes some coercing. If I just let the bike sit for a while, it starts right up no problem and runs great again.

All signs point to overheating, no? The reason I'm unsure is that all the other overheating problems I've read about involve the radiator fluid boiling over. That has not happened on my bike. I checked the fluid level and it looks good.

Any thoughts on this problem? Any advice on how to fix it?

Thanks,
Mike.
mheydlauf is offline  
Sponsored Links
Advertisement
 
post #2 of 26 (permalink) Old 06-10-2015, 02:42 PM
What the curtains?
 
bajadog's Avatar
 
Join Date: Feb 2009
Location: San Diego
Posts: 12,954
Lightbulb

Two things first. (sorry if you have mentioned this already, I post a lot).

What is modified from stock?

Did you adjust the mixture (rich/lean) for the mods?


Trail rider or racer? (I guess that's 3 things).

2012 Yamaha Super Tenere
2008 KTM 950 Super Enduro R


Past Rides
'14 Honda NC700X
'11 Husaberg TE 300
'08 Husqvarna 610 TE
'06 Ducati 1000S Multistrada DS
'04 BMW 1150 RT
'03 KTM 450 EXC
'02 KTM 640 LC4e
'01 Honda XR650R
'00 KTM 520 EXC
'98 Honda XR600R
'95 KTM 620 RXC
'90 KTM 500 MX
'88 Yamaha TT600
'86 Yamaha XT 350
'84 Yamaha IT465 (STOLEN)
'83 Kawasaki KDX 450
'83 Honda CB1000 Custom
'82 Kawasaki KDX 400
'77 Yamaha DT200
'70 Honda CT70

See you at Papa Fernandez!


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
bajadog is online now  
post #3 of 26 (permalink) Old 06-10-2015, 02:57 PM Thread Starter
Junior Member
 
Join Date: May 2015
Posts: 14
I don't think anything major was modified from stock. It has an after market tail pipe, I put a Tusk clutch in it, and it has a 13/54 (I think) sprocket ratio -- geared for trails.

I didn't adjust the mixture, but it's a 4-stroke, there's no rich/lean adjustment to do... is there?

I ride around the neighborhood and on trails. I noticed the loss of power, stalling, backfiring when riding trails, and when taking an Experienced Rider Course (all riding drills in a parking lot on a hot day in 1st and 2nd gear) at the local community college.

Thanks for your help!
Mike.
mheydlauf is offline  
 
post #4 of 26 (permalink) Old 06-11-2015, 10:25 AM
What the curtains?
 
bajadog's Avatar
 
Join Date: Feb 2009
Location: San Diego
Posts: 12,954
Easiest first check is pull the spark plug and
see how it looks.

If the coolant is Evans or Engine Ice, you may not boil
over but still can be over heating.

2012 Yamaha Super Tenere
2008 KTM 950 Super Enduro R


Past Rides
'14 Honda NC700X
'11 Husaberg TE 300
'08 Husqvarna 610 TE
'06 Ducati 1000S Multistrada DS
'04 BMW 1150 RT
'03 KTM 450 EXC
'02 KTM 640 LC4e
'01 Honda XR650R
'00 KTM 520 EXC
'98 Honda XR600R
'95 KTM 620 RXC
'90 KTM 500 MX
'88 Yamaha TT600
'86 Yamaha XT 350
'84 Yamaha IT465 (STOLEN)
'83 Kawasaki KDX 450
'83 Honda CB1000 Custom
'82 Kawasaki KDX 400
'77 Yamaha DT200
'70 Honda CT70

See you at Papa Fernandez!


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
bajadog is online now  
post #5 of 26 (permalink) Old 06-11-2015, 01:13 PM Thread Starter
Junior Member
 
Join Date: May 2015
Posts: 14
Thanks for the advice. I'll pull the spark plug, but what exactly should I be looking for?
mheydlauf is offline  
post #6 of 26 (permalink) Old 06-11-2015, 01:35 PM
What the curtains?
 
bajadog's Avatar
 
Join Date: Feb 2009
Location: San Diego
Posts: 12,954
Mike you will be looking for color of the insulator, and
the lack or presence of deposits on the electrode.

Have a look at this article on Thumpertalk, it's a bit
long, but scan thru it until the plug photos.

http://www.thumpertalk.com/wiki/_/wh...ts%2C+%26+More!

2012 Yamaha Super Tenere
2008 KTM 950 Super Enduro R


Past Rides
'14 Honda NC700X
'11 Husaberg TE 300
'08 Husqvarna 610 TE
'06 Ducati 1000S Multistrada DS
'04 BMW 1150 RT
'03 KTM 450 EXC
'02 KTM 640 LC4e
'01 Honda XR650R
'00 KTM 520 EXC
'98 Honda XR600R
'95 KTM 620 RXC
'90 KTM 500 MX
'88 Yamaha TT600
'86 Yamaha XT 350
'84 Yamaha IT465 (STOLEN)
'83 Kawasaki KDX 450
'83 Honda CB1000 Custom
'82 Kawasaki KDX 400
'77 Yamaha DT200
'70 Honda CT70

See you at Papa Fernandez!


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
bajadog is online now  
post #7 of 26 (permalink) Old 11-02-2016, 12:41 AM
Junior Member
 
Join Date: Nov 2016
Posts: 2
Exclamation Overheating-Offroad

hey guys, has anyone had problems with their 2016 exc350f overheating? riding fast tracks its fine but when i get into the technical single tracks, i know its lower gears and working harder but it will over heat very quickly comparing to other ktm's, husqys, and suzuki race bred bikes i was riding with and none of them were over heating only my 350, i took it back to the dealer and they couldn't find any air locks at all but still over heated while testing after they checked. anyone had this problem or know what could be wrong so i can tell the dealer what i want to do so they don't try get out of it?
justin3160 is offline  
post #8 of 26 (permalink) Old 11-02-2016, 09:05 AM
Member
 
Join Date: Oct 2015
Location: Toronto, Canada
Posts: 91
On the tight single track gotta keep it moving so there is sufficient air flow.
If you get stuck or have to stop then shut the bike off.
You can check to make sure sufficient fluid level, also change regular coolant to engine ice, and make sure no leaks in the system.
But in the end it will overheat if sitting at idle for long it needs to keep moving quickly even in the tight/gnarly single track.
serialize is offline  
post #9 of 26 (permalink) Old 11-20-2016, 07:40 AM
Junior Member
 
Join Date: Jun 2012
Location: Mexico, NY
Posts: 6
My 350XCF was overheating on single track. I changed the coolant to engine ice and installed a fan. No more boil overs and Temps stay a bit more manageable.

Sent from my Nexus 6 using Tapatalk

'06 Suzuki V-Strom DL1000
'09 KTM 300XC
'10 Ski-Doo MXZ600X-RS
GreatWhitehunter is offline  
post #10 of 26 (permalink) Old 12-19-2016, 06:29 PM
Junior Member
 
Join Date: Dec 2016
Posts: 12
Overheating-Offroad

2 dealer oil changes in. Everything working great.

Last two times I've been on it, once in the Pine Barrens and now out on the street, when I stop a bunch of steam coming up from the the coolant overflow hitting the exhaust. Today I went maybe two miles just to run it since it's been sitting for 2 weeks.

The overflow seems excessive. puddle on the ground and even 5 drops of oil.

Suggestions?
Dented is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the KTM Forums: KTM Motorcycle Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome