Motorcycle Club » Star 1300

Replace Radiator Coolant

16 posts from 6 voices
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  1. Philo107

    Have you ever had to change your radiator coolant?
    What's the trick?

  2. tunc

    never done it on mine 1100 [no radiator] but found this which might help
    if no one else chimes in
    this may help as well link

    To change the coolant - remove the driver's seat, fuel tank, all four cylinder side covers, and the right side cover (color-matched cover under driver's seat). Prop the motorcycle so that it's as close to level as possible, but will not tip over in either direction. Place a 24"-30" drain pan slightly forward of the center of the engine - if you do not have a large drain pan, a small one placed under the drains individually, IN THE ORDER LISTED, will work. Siphon all coolant from overflow reservoir under the side cover OR remove the center cover, remove bolts holding the reservoir to frame, invert the reservoir to empty, and reattach the reservoir to the frame.

    Now, remove the radiator cap and the drain plug at the bottom of the radiator, allow the radiator to empty. Remove the plugs at the lower portion of each cylinder in no particular order, drain fully, then remove the drain plug from the bottom of the water pump (the large protrusion beside the front right driver's footrest). Once all drains have ceased dripping, reinstall the radiator plug (torque to 18 ft.-lb., 25nm), all four cylinder plugs (seat firmly in the drain holes), and the water pump plug (torque to 32 ft.-lb., 43nm). Fill the reservoir in the rear, then fill the radiator as much as possible, cap, and run the engine for 3-5 minutes to warm. Remove the radiator cap, check the radiator and refill, repeating until there is no air beneath the radiator cap when it is removed.

    Reinstall the body panels, tank and seat, and return the bike to its' normal parking position on the kickstand. If additional coolant is needed it will be added to the reservoir - check frequently for about the next 100-150 miles

  3. ScottB

    I've been looking at the 1300 and 950. That bit of maintenance just took the 1300 out of the running for me.

  4. Philo107

    That doesn't seem like the "easy" way.

  5. Silwerato5x5

    On my other bike a water cooled Honda CX 500 I had to drain and refill the radiator and all coolant similar to like this but a bit easier, first off I use only clean distilled water, new coolant from a sealed jug. My 1300 is just a bit past a year old, too soon to change coolant just yet, maybe when I reach the 5000 mile mark or two years.

    Yes I believe coolant also has a limited lifespan, the mixtures are too exotic nowadays, GM thought Dexcool was the cats meow until it disintegrated some intake manifold seals on a lot of Vortec engines.

  6. tunc

    maybe not but to drain the whole coolant system it seems the way to do it

    maybe that's why the shops charge so much for a coolant change

    best i could find

  7. JuzdSdewe

    Well, this might not be the 'correct' way to do it, but this is how I did it.
    I loosened the fuel tank, (moved it back as suggested), then removed radiator cap. Pulled cork on radiator, and let as much of it drain out as would.
    Then replaced plug/drain on radiator, and refilled the bike with a 50/50 mix of prestone and fresh/distilled water (out of a jug from the store).
    Let it sit until it all 'hopefully' settled. Started bike up, let it run till it got 'up to temp', let it cool down. Checked coolant level. Topped off as necessary. Then on 2 consecutive cruises, watched the reservoir (burp cup), closely. I had the valves adjusted on it about 4.000 miles (give or take), ago, the THE yammie dealer "JUST BECAUSE THEY HAD TO DRAIN IT TO TAKE HOSES OFF), changed the coolant for ME again.......(shit should REALLY be fresh now, huh?)
    Anyway, I checked it after I took the fuel tank off for this winter, and when THEY did it, the coolant (in the system), was low. (not like I left it on previous drain/fill).
    In either case, to NOT purchase THIS bike JUST because of having to do a coolant change is just plain stupid..............................(IMHO).

  8. Silwerato5x5

    I am a big fan of water cooled engines, to me an air cooled motor gets stressed out too much from temperature extremes, metal expansion and contraction and gasket deterioration, maybe thats why "some" air cooled bikes leak oil so much.

  9. Philo107

    In either case, to NOT purchase THIS bike JUST because of having to do a coolant change is just plain stupid..............................(IMHO).

    Seems pretty easy. Once every 2 years....There is an big upside to water cooled vs. air cooled. (I'll bet it will go 5 years between coolant changes with no problem).

  10. BigerDawe

    Do you think the big 18 wheelers change their coolant every 2 years? Nope.
    They check the ph of the coolant periodically with a ph strip and then add some type of substance that alters the ph.
    I think once the ph becomes acidic it can damage the related cooling system components.

  11. ScottB

    I don't consider anyone's choice of a bike, for whatever reason, "stupid". Maybe you didn't mean to say that.

    There's one thing I don't understand and that's why the coolant would need to be changed so soon. The coolant change intervals on most cars nowadays is 100,000 miles PROVIDED only distilled water is used in the mix when makeup coolant is added. And when it's time to change buy lots of jugs of distilled water and use them for flushing. It's a good idea to not let just anyone add coolant to your car unless you know what kind of water is contained in the mix.

    The 18 wheelers are a little different because they have cooland filters that are replaced at certain intervals. The filters also contain makeup chemicals to replace those lost from evaporation.

  12. JuzdSdewe

    Fine, maybe I was in a bad mood whenI typed STUPID............I'll use 'juvenile instead.

    I didn't purchase that one car I wanted because it had whitewall tires on it instead of blackwall......ALMOST makes as much sense...............IMHO>

    For sure HAVING to change your coolant is something to think about, but to NOT purchase a bike (or anything)< just because THATS part of the maintenence on it?.........Come on.......................:roll eyes:

    As long as you use distilled water, GOOD antifreeze, and do it when it needs to be done, (I went changed mine around 30,000 miles), *(Same as when I do it on my 4 wheeled vehicles), UNLESS they get to smellin'lookin' crappy, OR test bad), you'[ll be fine.

    Again, it ain't no big deal to change/replace coolant on our 1300s.

  13. ScottB

    To go back to the original question there's one tip I can give.

    When you flush the system there's always going to be some water left somewhere so before adding anything back find out the total capacity of the cooling system. Add half that total to the system in pure antifreeze then complete the fill with distilled water. That way you're assured of a 50/50 mix.

    Hope this helps.

    Happy New Year.

  14. Philo107

    I think JuzdSdewe was enjoying the New Year "cheer".

  15. JuzdSdewe

    Nope, I'm (look at my name/version).......grumpy OLD biker.........and you'll get the message.

    While I love to try and give help/assistance (what little I DO know), to 1300/bike owners/riders, it just irritates (for lack of a better word), (or trying to be political GAG), correct), ME off when I hear stuff like the aforementioned........'I didn't/won't purchase this/that because (insert some lameass excuse).......................

    Call me old, call me grumpy, call me whatever, but don't call me late for dinner...........

    That is all......................................

    btw, everyone have a great new year................I MEAN IT DAMMIT.

  16. Philo107

    This ended up being super simple (the old coolant was pretty dirty...2007 model).
    30 minutes start to finish.
    Prestone says it's good for 5 years or 150,000 miles.

    I'll let you guys know which comes first.


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