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The 2-Stroke Garage => Turning Wrenches => Topic started by: Czakky on May 03, 2020, 09:52:16 AM

Title: Oil injector pin
Post by: Czakky on May 03, 2020, 09:52:16 AM
I had a sweet low speed seize last week. :bang: I finally got the resolve to look into it. It turns out the tiny tension pin that holds the adjustment plate popped out. I happened to have a new one from a steering stabilizer kit kicking around and popped it in with a tiny drop of loctite retaining compound. Every thing moves correct and I can't pull it out with a little effort.

Kind of a bummer, but such is life.

You guys have any tricks to holding these things in place?


BTW I did a quick compression test and looks like I didn't lose much. So I'm running it.
Title: Re: Oil injector pin
Post by: Striker1423 on May 03, 2020, 10:18:17 AM
The oil pump pin fell out? The RD250B has a small bent over bracket that folds over the pin so even if it comes loose,  you will not lose it. I bet you could find one on Ebay? It's not on the part sheet that I see
Title: Re: Oil injector pin
Post by: m in sc on May 03, 2020, 10:32:08 AM
yup. the later pumps had them . 250 and 350. you can make one as well. 90 degree bend and a hole to have the shatt with the nut pass through.
Title: Re: Oil injector pin
Post by: Czakky on May 03, 2020, 12:51:20 PM
 :clap: that's why I asked! Thanks guys.
Title: Re: Oil injector pin
Post by: m in sc on May 03, 2020, 08:18:35 PM
(http://www.2strokeworld.net/wp-content/uploads/general-tech/rdoilpumpseal/oilump-retainer-for-pin.jpg)
Title: Re: Oil injector pin
Post by: Jspooner on May 03, 2020, 09:32:38 PM
I probably have one I can send you Bill.
Title: Re: Oil injector pin
Post by: Czakky on May 03, 2020, 11:11:18 PM
Joe to the rescue! I'll send you a text tomorrow. Thanks!
Title: Re: Oil injector pin
Post by: Arrow on September 06, 2020, 08:54:31 PM
The bracket does not prevent the roll pin from becoming loose. It might stop it falling out completely. For maximum security I fit the roll pin with the tapered end, but it ends up full diameter all the way through the hole/top casting with no tapered end, works well. Yamaha never did this, and later fitted a screw, which was more successful. Most success was achieved with the later top casting, with its steel insert (at great expense) on the end.

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