BOTM

* Sponsors


Author Topic: RD400D Autolube rebuild  (Read 231 times)

0 Members and 1 Guest are viewing this topic.

Offline Clergyman

  • Newbie
  • Posts: 10
  • Karma: 0
    • Location: PARIS
RD400D Autolube rebuild
« on: August 11, 2017, 01:06:45 PM »
I rebuilt the pump and everything seems to check out *except* I can't verify that the pump is actually flowing oil.  The pump is calibrated, bled, and the pump rod actuates.  I'm getting zero flow even after hand kicking over (spark plugs removed) 50 times.  No oil output.

I'm thinking that I need to disassemble and make sure that I didn't put a seal in backwards, or something silly like that. 

Trying to find an exploded view of this particular pump has failed.  Does anyone have an exploded drawing or pics for the pump for the specific model year of 1977?

Thanks.

Offline hw9rd350b

  • Dr. 2-Stroke, M.D.
  • Posts: 3294
  • Karma: 91
    • Location: Smithville Texas
    • RD's Only
Re: RD400D Autolube rebuild
« Reply #1 on: August 11, 2017, 01:19:52 PM »
Email me
john@rdsonly.com
Will give you a nice rebuild guide & exploded diagrams.
Plug carb holes- pump line off into plastic bag;
After rebuild pump- mix 1 gallon @ 50:1 run the bike- not a high rpms.
pull the cable up while running- max flow- until you see oil flowing from lines.

Connect lines to carbs- restart, cable in normal position, rev up until you get max smoke.
Dump mix fuel and add Good fuel;
I recommend 100ll av gas 50/50 no ethanol 93 oct pump- or race fuel.
 
Visit my site to see some helpful hints.
http://www.rdsonly.com/reference-materials.html

Good luck

JT
 
Smithville Texas -By Austin
www.rdsonly.com
 RD350B
 RD400F -racebike restoration
 RZ500 - Flame bike
 Honda ST90 -Mini Motard project
 RD250 -resto needs work
 93 TZ250 -resto need work

Offline Clergyman

  • Newbie
  • Posts: 10
  • Karma: 0
    • Location: PARIS
Re: RD400D Autolube rebuild
« Reply #2 on: August 11, 2017, 03:37:29 PM »
Thanks. 

Too, this was WOT and nothing.  The overall bike build per the attachment.


Online jspooner

  • Dr. 2-Stroke, M.D.
  • Posts: 2844
  • Karma: 107
  • Just quit brain fucking it and get it done.
    • Location: Chippewa Falls WI
Re: RD400D Autolube rebuild
« Reply #3 on: August 11, 2017, 04:30:45 PM »
Did you bleed it?
80% of your work is done by 20% or your employees and 90% of your problems are caused by 10% of your employees

Offline Clergyman

  • Newbie
  • Posts: 10
  • Karma: 0
    • Location: PARIS
Re: RD400D Autolube rebuild
« Reply #4 on: August 11, 2017, 04:38:41 PM »
Bled, yes....

Offline SUPERTUNE1

  • Dr. 2-Stroke, M.D.
  • Posts: 2033
  • Karma: 119
  • I am a 2 stroke tuner for 30yr! not a post counter
    • Location: Clearwater, Florida
Re: RD400D Autolube rebuild
« Reply #5 on: August 12, 2017, 05:50:40 AM »
When I have the whole side cover assembly, I put it all together without the plastic drive gear and hook up a mock oil tank oil line and use a drill to drive the pump.

Chuck 'SUPERTUNE' Quenzler III





« Last Edit: August 12, 2017, 06:09:22 AM by SUPERTUNE1 »
Racegas + Lots of oil = HORSEPOWER
2 time Daytona AHRMA Formula-500 winner '06
'78 RD400E
TEAM SCREAM RACING
RD machine work, boring, porting, cranks and engine building.
New email: cqsupertune@tampabay.rr.com

Offline Honolulu-Mike

  • Obsessed with vintage Japanese Bikes
  • 2-Stroke Tuner
  • Posts: 501
  • Karma: 13
    • Location: Honolulu
    • Oahu Realtor
Re: RD400D Autolube rebuild
« Reply #6 on: August 12, 2017, 01:56:33 PM »
That's a great tip, Chuck.
Running bikes: 1975 H2, 1973 H1, 1976 KH400, 1976 KZ900

Projects: 1973 H2, 1977 RD400, 1985 RZ350, 1978 KZ1000

Offline Clergyman

  • Newbie
  • Posts: 10
  • Karma: 0
    • Location: PARIS
Re: RD400D Autolube rebuild
« Reply #7 on: August 12, 2017, 09:56:54 PM »
Great tip.  I don't have the cover off.  I'll go with the premix and purge the system per the Yamaha directive provided in an email to me.