HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
Shred

Raidator steaming/overheating after extended idle?

14 posts in this topic

I just purchased my new, pre-owned 2005 WR 450, YEA, and had it idling in the garage to charge the battery. I noticed the header was starting to get red hot...shortly thereafter steam started pouring out of a hose under the engine. I killed the motor and heard antifreeze bubbling and a little whistling noise. I have since looked in my manual and it says not to do an extended idle.

Did it just overheat or did I already break my new bike?!!!

Thanks and I look forward to participating in this forum in the future.

Mike

Share this post


Link to post
Share on other sites
and had it idling in the garage to charge the battery.

Mike

At idle it hardly produces enough voltage to charge.

Get a battery tender. They are about $20 and come with a pig tail you can hook up so it can be charged with out removing the seat. You wont be sorry.

Share this post


Link to post
Share on other sites

Don't leave that engine idling for any length of time. They will overheat really fast. You have a catch bottle under the left hand sidepanel, it sounds like the hose is disconnected or te bottle is missing. Good coolant is a necessity, engine ice or 60/40 anti freeze with watter wetter is good. The header glowing is normal. By the way, are all the free mods done on the bike? if not then you need to get them done and tell us all what you think after.

Share this post


Link to post
Share on other sites

Man, a lot of good info. in a short period of time- thanks guys! Anyone figure out how to keep a wife happy 100% of the time (don't answer that question)?

I'll score a trickle charger and the right coolant. BTW my antifreeze tank was filling when the stream happened.

The only mod done on this bike is that the pipe has been opened up at the end. I've read things about cutting the grey wire, rejetting and getting rid of the throttle stop but I plan on getting used to the bike first before doing these mods. This sucker is a little more bike than the ol' XR125 I used to race as a kid-

Mike

Share this post


Link to post
Share on other sites

Make sure you get a tender that automatically checks the charge and shuts off. You can wreck your battery with the types that don't shut off. I got a Black & decker charger maintainer from WalMart for $19. I think other guys have had good luck with the Battery Tender JR.

Share this post


Link to post
Share on other sites

Shred,

Depending on how and were you ride you may want to consider protecting your radiators. Look into radiator guard /braces. There are number of them out there and for around a hundred bucks you can protect them pretty well. I have Unibikers and they were a little difficult to install but have done an excellent job.

Most Yamahas are cold at start up but tend run hot soon after if your not moving. As said before Engine Ice and Water Wetter can help.

Share this post


Link to post
Share on other sites

WR450F doenst have fans on the radiators and MUST be moving. Short idling periods or OK, but extended will fill up the coolant bottle and overflow eventually. Dont use the system, to charge the battery, will never catch up. Its designed to maintain a full charge under normal useage. Get a battery tender and hit it every now and then when its setting.

Share this post


Link to post
Share on other sites

Coolant will eventually be forced out of the overflow resevoir and out the bottom of the bike. Engine ice is good but it will still overheat at an idle or on low speed high RPM rides, (i.e., pack and carry), NCMountainman has boasted the virtues of an Evans coolant on here, he says it's better than Engine Ice. I have not been able to find any, but my bike will still overheat in the right conditions and I am using Engine Ice ran through a set of Fluidyne Super Flo radiators....... :applause:

Share this post


Link to post
Share on other sites

Wow, never had an overheat problem in Washington or Vegas (where I am now) with stock coolant, radiators, etc., but richer on the carb after doing the free mods and JD jetting. Shred, your bike is probably lean since it sounds pretty stock.

Share this post


Link to post
Share on other sites

You cant idle these bikes without an electric fan on the radiator! :bonk::cry::cry:

Look at any trials bike or street bike and you will see a fan on them! KTM sells a hard parts fan that can be added to radiator guards for those low speed technical rides on Hot days. :applause:

Share this post


Link to post
Share on other sites
Wow, never had an overheat problem in Washington or Vegas (where I am now) with stock coolant, radiators, etc.,

Goldbar :applause:

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0