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Oil Pump Injection Nozzles

Started by Diablo007, September 17, 2020, 01:04:46 AM

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Diablo007

September 17, 2020, 01:04:46 AM
The oil injection nozzles I have fit loosely in the carburetors.  One side is OK, but still looser than I would like.  The other side is loose.  What is the best way to seal them?  RTV silicone?  Yamabond 4?  Any tips would be appreciated.
2 stroke junkie:
Too many motorcycles to list.  The highlights:
1973 Yamaha RD350 Cafe Racer project; 1983 Suzuki RG250 YammaGamma project; 1988 Yamaha YSR50/80 project; 1984 Yamaha RZ350; 1984 Yamaha RZ500

Barto

#1
September 17, 2020, 05:08:15 PM
Judging from what I put in my amazon cart so I would remember, Chuck says Loctite 640 High Strength Sleeve Retainer.  Hopefully someone better at searching the site can confirm.  Posted this year, I bet.
'79 400F                             '82 KZ750E
'79 Husqvarna WR390          '70 MTD minibike
'77 Husqvarna CR390           '55 Indian Woodsman (British 500 Bullet) basket
'75 Bultaco Alpina 350
'66 Benelli Cobra 125

rodneya

#2
September 17, 2020, 05:16:58 PM
Yamaha recommended contact cement.
The locktite  will work if you have it, or use JB weld

SoCal250

#3
September 17, 2020, 05:18:46 PM
75 Yamaha RD125B   75 Yamaha RD125B (project)
75 Yamaha RD250B   75 Yamaha RD200B (project)
73 Yamaha RD350     77 Yamaha RD400D   79 Yamaha RD400F  
91 Yamaha TZR250R  89 Yamaha FZR400   05 Yamaha FZ6   
05 Yamaha XT225TC  82 Honda MB5  02 Aprilia RS250 Cup (sold)

Barto

#4
September 17, 2020, 08:59:21 PM
  Wow, thanks for all the rebuilding of the Tech Library, SoCal250!    :whoop:   I better check more often and work on my search skills!  Super appreciate both, Thanks!
'79 400F                             '82 KZ750E
'79 Husqvarna WR390          '70 MTD minibike
'77 Husqvarna CR390           '55 Indian Woodsman (British 500 Bullet) basket
'75 Bultaco Alpina 350
'66 Benelli Cobra 125

SoCal250

#5
September 17, 2020, 09:58:02 PM
Quote from: Barto on September 17, 2020, 08:59:21 PM
  Wow, thanks for all the rebuilding of the Tech Library, SoCal250!    :whoop:   I better check more often and work on my search skills!  Super appreciate both, Thanks!

:thumbs: It's a little Yamaha heavy but it's intended to be our go-to resource for specs and other info tidbits.
75 Yamaha RD125B   75 Yamaha RD125B (project)
75 Yamaha RD250B   75 Yamaha RD200B (project)
73 Yamaha RD350     77 Yamaha RD400D   79 Yamaha RD400F  
91 Yamaha TZR250R  89 Yamaha FZR400   05 Yamaha FZ6   
05 Yamaha XT225TC  82 Honda MB5  02 Aprilia RS250 Cup (sold)

Diablo007

#6
September 18, 2020, 04:07:13 AM
Thanks!  I guess my search skills need some honing also.  I thought I had checked the Tech Library but apparently not good enough.  Now that I see the link to the green loctite solution I realized I had read that before this bike was back-burnered.  Fired it up today and it was awesome.  First engine I have totally rebuilt.  Well, I left the oil pump alone as I have been told many a time that they are bullet-proof.  (Here come the comments....)
2 stroke junkie:
Too many motorcycles to list.  The highlights:
1973 Yamaha RD350 Cafe Racer project; 1983 Suzuki RG250 YammaGamma project; 1988 Yamaha YSR50/80 project; 1984 Yamaha RZ350; 1984 Yamaha RZ500

quocle603

#7
September 19, 2020, 12:45:54 PM
I use locktite green for all my brass carb parts that come off
Do not underestimate the power of a two-stroke.

1975 Yamaha RD350 (modified), 1973 Yamaha RD350 (stock), 1971 Suzuki T500, 1981 Yamaha XS650 HS2, 1982 Honda MB5, 1980 Puch Maxi, 1979 Puch Magnum, 1993 Tomos Bullet, 2003 Malaguti Firefox F15 LC

rd400greenhorn

#8
September 22, 2020, 04:55:51 AM
Where do you buy new nozzles thwt fit stock rd400 carbs?

quocle603

#9
September 22, 2020, 09:34:23 AM
yamabits, economy cycle, hvc cycle.
Do not underestimate the power of a two-stroke.

1975 Yamaha RD350 (modified), 1973 Yamaha RD350 (stock), 1971 Suzuki T500, 1981 Yamaha XS650 HS2, 1982 Honda MB5, 1980 Puch Maxi, 1979 Puch Magnum, 1993 Tomos Bullet, 2003 Malaguti Firefox F15 LC

klaird

#10
September 22, 2020, 11:33:19 AM
Economy gives forum members a 10% discount.Use coupon code 2SW
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