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Thread: coolant leak

  1. #1
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    Default coolant leak

    I've read several threads about leaks and I think this is a frost plug. Just looking for confirmation. Thanks in advance.

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    Technically not a freezeplug, but the hole with the rubber plug and threaded insert is a cooling system plug, yes. They tend to weep with age and will weep more in cooler weather than warmer weather. One trick I am sure you have seen posted is to shim it up with a dime or medium thickness washer, that presses the tapered pug further into the hole and makes it seal better. Eventually you will need to replace them.

    Oh , do not run the motor with the fins off, you will likely blow the plugs out and a considerable amount of coolant.

    The upper hole that is empty and has a slight rust stain below it, is a drain hole for the well the spark plug sits in, nothing to worry about there.
    Steve K
    Edgewater , FL
    And the LORD said "Thou shalt have dominion over all of the animals, Except of course the cat."
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    Quote Originally Posted by YYZ View Post
    I've read several threads about leaks and I think this is a frost plug. Just looking for confirmation. Thanks in advance.
    If that is the leak at the top hole and not the hole at bottom where the rubber plug is then you have a different problem. I just did the shim fix and it stop all leaks on my RSTD yesterday. How ever I do have 4 new ones on order should be here today - Sat.

    Joe

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    thanks guys. I did think the leak was from the hole in the head because of the rust but now I see it is in fact the plug in the case that is leaking. I tried one of the cheats listed but will get a new one on order ASAP.

    thanks again

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    Bought 4 new coolant plugs/freeze plugs yesterday for my 07RSV. The parts counter jockey could not find it and wanted me to pull one and bring it in for identification. After I insisted that if he couldn't find it call another more experienced parts jockey. He eventually went to the lead mechanic after a suggestion from another jockey. He came back and said the mechanic referred to it as a freeze plug. He pulled it up on the computer that refers to it as a "PLUG". They had 4 in stock but this took around 20 min to complete the identification and sale. I would imagine that all the engines that have a freeze plug are the same. They were very proud of these plugs here in Baton Rouge as they were $8.99 apiece plus tax. P/N 90338-11152. Save this P/N if you are planning on changing these anytime soon and keep the ole blood pressure down!

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    Default Just An FYI!

    The "tip" end of a spark plug has the same thread as the center threaded hole in the drain plug you are replacing, use an old spark plug to pull the drain plugs out without gouging the cylinder head.
    Earl
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    They were very proud of these plugs here in Baton Rouge as they were $8.99 apiece plus tax.
    Not to rub salt in the wound, but Yamaha Sports Plaza on line price is $4.54, not sure what shipping would do to the end price per part.
    Steve K
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    Interesting story about the long identification of this part at the parts counter, when I asked what kind of anti freeze to use, they told me and said don't buy it here, and showed me the plugs they had on hand and told me to lube them when I put them back in to keep em pliable. in about two seconds he pulled it up on the computer in an expanded view and showed me where it was and how to get to it. (My first water cooled Bike) He said, if they were too dry call us we always have spares on hand. I left, without spending a dime. He even told me about the spark plug being the tool to remove them.

    I guess a Parts counter is only as good as the person standing behind it.

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    I love my Venture. It has never let me down. I do all my own maintenance, I hate to have anyone but me touch it. Cause I'm the only one that will do it right. Except tires, I take the wheels off and have the dealer mount/balance the new ones but that may change as they just raised the price to $39 per loose tire and only if you bought the tire from the dealer.

    So I was greatly saddened when I noticed this under my bike today. And I don't think it's from drinking beer either.


    Glad it's green in color, makes it easier to trace.

    It's been cold here, well sorta for Texas but not below freezing. I think contracting from the cold was just enough to make it leak. In fact the plug fell out when I removed the cylinder head side cover. Where last summer I had to use the sparkplug to remove it from a tight fit when I did a coolant flush/replace.


    Should of searched here first instead of searching the parts manual before finding it under crankcase #9 PN:90338-11152-00 MSRP $6.49. But can be found from $12.00 to $4.58 ech. I paid the $4.58 (x 4) + postage so I saved $1.25 under MSRP and who knows what stealer price is.


    Was hoping to take wife, daughters, grandkids for a ride over Christmas vacation. Hope the holiday mail doesn't slow things down too much.
    Wish y'all a very Merry Christmas!
    Best regards; Art

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    So I get my cylinder coolant plugs in. I spill out the package. I thought these were genuine Yamaha parts! Looks like they came from AMWAY. I'm gona try them anyway

    Best regards; Art

  11. #11
    tx2sturgis Guest

    Thumbs up leaker....

    Mine too....got them ordered.



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    So my plugs happened to weep over the winter and I ordered a set from Partshark.com ($4.15 ea w/$4.50 S&H). Are these expansion plugs that expand when they are screwed in or do I whack em with a three pound ball peen hammer? Inquiring minds want to know. Thanks!

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    Default Freeze plugs

    Your can push the new ones in with your finger or us the end of your spark plug to push in place . just remember to not start the bike when fins are off.

    Barry

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    Quote Originally Posted by aharbi View Post
    So I get my cylinder coolant plugs in. I spill out the package. I thought these were genuine Yamaha parts! Looks like they came from AMWAY. I'm gona try them anyway
    So I take it they were the correct, but "non-yamaha", replacements??

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    mine is leaking from the top hole with no rubber plug what to do?

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