Changing Coolant

3636 Views 18 Replies 6 Participants Last post by 2fast4uracingxc, Mar 17, 2009

dennyking1

Discussion Starter · Mar 17, 2009

Hi, I've got an 08 yfz 450 and I bought engine ice to change out my coolant. I got home and started investigating my ride. I noticed the radiator cap is up under the plastics, do I have to take the plastics off to do this or do I just unbolt the radiator and drop it out? Also I couldn't find a drain plug, do I just drain it out the hose that runs it to the motor? It isn't completely at the bottom of the radiator so I was wondering. I feel retarted for having to post this, but I don't want to do any unnecessary steps if there is an easier way. Please Help!

1 - 19 of 19 Posts

YFZER359

· #2 · Mar 17, 2009

wonderin the same thing.

Yes you do have to take the front plastics off.

I would think you just take the water pump cover off and take the rad cap off to let air in to drain.

Joester

· #3 · Mar 17, 2009

theres a little bolt. hold on, ill get a pic and an arrow. =P

YFZER359

· #4 · Mar 17, 2009

always count on joester for pics lol

sidewinder

· #5 · Mar 17, 2009

Yes you have to remove the plastics and yes there is a drain plug.

1. Remove side shroud plastics
2. Take off radiator cap
3. Remove drain plug

4. Flush out remaining coolant with water
5. Empty overflow bottle
6. Put plug back in
7. Fill up radiator and overflow bottle
8. Let bike idle, topping off coolant in radiator

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Joester

· #6 · Mar 17, 2009

i hope your happy, that took me like 5 minutes!

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YFZER359

· #7 · Mar 17, 2009

is there any sort of bleeding process with the cylinder like in 2 stokes?

Joester

· #8 · Mar 17, 2009

mines like 28.3 times better!!!!

Joester

· #9 · Mar 17, 2009

watch out though, cause it really shoots outta there fast.

and that IS NOT WHAT SHE SAID!

YFZER359

· #10 · Mar 17, 2009

QUOTE (Joester @ Mar 16 2009, 06:43 PM) index.php?act=findpost&pid=758530

watch out though, cause it really shoots outta there fast.

and that IS NOT WHAT SHE SAID![/b]

LOL

and uhh i think sidewinders go ya on that one lol sorry joester

Joester

· #11 · Mar 17, 2009

nope, mines in color. i ran the math and its 28.3 times better than sidewinders.

seriously, what is that? a bunch of lines? that is a trough? i dont think so.

dennyking1

Discussion Starter · #12 · Mar 17, 2009

Thanks a ton! Found it and going to change it right now. I appreciate your 5 min :icon_biggrin:

sidewinder

· #13 · Mar 17, 2009

QUOTE (Joester @ Mar 16 2009, 06:48 PM) index.php?act=findpost&pid=758537

nope, mines in color. i ran the math and its 28.3 times better than sidewinders.[/b]

Phail.

Joester

· #14 · Mar 17, 2009

hey, you spelled fail wrong.

YFZER359

· #15 · Mar 17, 2009

QUOTE (Sidewinder @ Mar 16 2009, 06:49 PM) index.php?act=findpost&pid=758539

Phail.[/b]

LOL

sidewinder

· #16 · Mar 17, 2009

No I didn't.

Joester

· #17 · Mar 17, 2009

QUOTE (king450 @ Mar 16 2009, 05:48 PM) index.php?act=findpost&pid=758538

Thanks a ton! Found it and going to change it right now. I appreciate your 5 min :icon_biggrin:[/b]

I bet you looked at MY picture.

this thread is officially off topic. I NEED AN ADULT!

gas it!!

· #18 · Mar 17, 2009

unlike most bantering on this site - you guys actually made me laugh today.

anyway, the way i did my engine ice was:

drain coolant
run white vinegar (?) and distilled water (half and half) for 5 minutes
drain
repeat
drain
repeat
drain
distilled water for 5 minutes
drain
engine ice for 10 minutes
check level of radiator and reservoir - top off if necessary

all that rinsing is to get rid of any remaining coolant on the motor and radiator. the vinegar get all the deposits out and the last step of just water gets all the vinegar out.
your not supposed to mix coolant and engine ice. so i made sure it didn't mix at all.

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2fast4uracingxc

· #19 · Mar 17, 2009

take the drain bolt out before you take the radiator cap off that way the coolant dont shoot out until your ready for it

1 - 19 of 19 Posts

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