ANOTHER OIL LEAK

ldrider82 · Posted: Tue Mar 17, 2009 10:22 am Post subject: ANOTHER OIL LEAK

1982 750 Maxim: There is a threaded engine plug on the right side below the oil pump cover. The o-ring has rotted and hence the oil leak. I cracked this plug trying to remove it. As it serves no real purpose other than to drain the oil if the bike is lying on its right side (not recommended...) a replacement part cannot be located. I have scoured websites and the dealer exhausted all of his resources. Anyone out there have any ideas where I can find this plug and o-ring? Picture attached.
Thanks.

KirkN · Posted: Tue Mar 17, 2009 12:12 pm Post subject:

ebay or local salvage yards.

May have to buy a parts donor, etc.

ldrider82 · Posted: Wed Mar 25, 2009 6:02 pm Post subject:

Do you know if Yamaha made a factory oil cooler for this bike? Are these plugs perhaps where that oil cooler would connect?

Russell · Posted: Wed Mar 25, 2009 7:00 pm Post subject:

I know the XJ900 version of these motors I owned had a factory oil-cooler, as did XJ650 versions I looked at however I'm fairly sure the oil cooler was not fed from that plug.

jayel · Posted: Wed Mar 25, 2009 8:42 pm Post subject:

try here

http://www.cmsnl.com/yamaha-xj750j-maxim-1982_model8880/partslist/

1 · Posted: Tue Mar 31, 2009 2:37 am Post subject:

try xjbikes.com...the site is all about xjs and you can usualy get a half doz answers form some very smart people that know these bikes inside and out

jeepurz · Posted: Tue Mar 31, 2009 10:42 am Post subject:

If its the same block as the 650 xj I may have one, does it actually go into the block or cover?

jeepurz · Posted: Tue Mar 31, 2009 10:43 am Post subject:

or tell me how long it is and what size mm, I always keep a container of "weird stuff" when I part bikes out.

jeepurz · Posted: Tue Mar 31, 2009 4:03 pm Post subject:

look at pic, if its right let me know ill shove it in an envelope, you cover the cost to mail it. If it looks right pm your addy. to me . its of 81 maxim650.

lordmisterford · Posted: Sun Jun 14, 2009 10:49 am Post subject: Oil plug leaking

It would help if you've got the Yamaha part number. If you had that you could go to http://www.nwvintagecycleparts.com/. A lot of times he has hard-to-find parts and what he's got is mostly NOS. Right prices, too. Give 'em a try. They're good people.

vyk · Posted: Sun Jun 13, 2010 11:49 am Post subject: Oil Plug

The plug was used cap a passage drilled in production of this engine. It should be Yamaha part # 4H7-15189-00-00 with an oring # 93210-21276-00. both still show to be available from Yamaha USA. Any Yamaha dealer should be able to order this for you.