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Yamaha RD 400 discussions

1979 Yamaha RD 400. Picture submitted by anonymous user.	Discuss the Yamaha RD 400 models without registering or logging in. Simply enter questions, comments or answers. We specially welcome comments on technical issues, riders' experiences, tips on styling and performance enhancements and references to tests. You may also sell or request parts. Use the button below to write extensive reviews with pictures.
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Discussion topics for Yamaha RD 400 motorcycles:

RD400D Rear Brake Spring (By RD400, 2023-03-11)
Buying RD 400 (By Damien, 2017-09-12)
- RE: Buying RD 400 (By Bob, 2017-09-15)
Is a Yama RD400 C[D] A Keeper (By ERider, 2017-04-06)
1977 rd400 cracked clutch cover (By Keith, 2015-10-12)
2strokedinosaur (By BSR, 2015-05-21)
RD400 parts (By red, 2015-04-20)
Red Fernino (By mfernino@gmail.c, 2015-04-20)
RD400 daytona? (By bbqman, 2014-07-21)
- RE: RD400 daytona? (By Doug H, 2022-08-03)
rd-400 problem (By lyles32, 2013-04-02)
exhaust valve (By Ralph, 2012-01-24)
vin number (By mario sanchez, 2011-11-07)
MY1047 (By PAUL COOMBES, 2011-07-09)
1976 yamaha 400 (By kris, 2011-01-24)
- RE: 1976 yamaha 400 (By shammycycle, 2011-10-16)
rd 400 (By mike, 2010-11-12)
1977 RD400 Original MSRP (By Randy Martin, 2010-08-13)
- RE: 1977 RD400 Original MSRP (By dcjones, 2014-09-27)
pistons and rings for a 76 , rd400 , wheres the cheapest place (By medo_nilebride, 2010-08-09)
Scott72 (By SS, 2010-06-15)
Rim Size (By Philip, 2010-05-07)
linkedbyink (By Tony, 2009-11-04)
yamaha (By manolo, 2009-10-22)
Old Oily (By Dom, 2009-09-18)
pistons and rings for a 76 , rd400 , wheres the cheapest place t (By john john, 2009-06-28)
lost keys (By blazzer11, 2009-06-04)
Â¿donde debe llevar el numero de motor una rd 400 del 76? (By armando, 2009-04-12)
1976 rd 400 - does it need a battery to create ignition spark? (By bill, 2009-03-30)
77 RD400 rear master cyl (By Cwn, 2009-02-08)
How many miles are these bikes good for? If not what do i do? (By Dustin nehl, 2009-01-09)
points gap (By tf, 2008-11-12)
1976 yamaha 400 (By kayla sanders, 2008-09-13)
fouls plugs (By brian, 2008-08-29)
76 rd 400 headlamp size 5 3/4 ? (By pindan, 2008-06-04)
- RE: 76 rd 400 headlamp size 5 3/4 ? (By Bob Cross, 2008-11-17)
front brakes (By casey, 2008-05-01)
daytona RD400 Frame (By bdk1indy, 2008-01-30)
what is the diff between a rd 400 D and 400 C (By ronny, 2007-04-10)
- RE: what is the diff between a rd 400 D and 400 C (By Leonidas, 2011-11-07)
Not sure what model letter it is? (By Ronny, 2007-04-10)
tork head bolts how much in foot lbs (By ono, 2007-01-06)
parts (By ken, 2006-10-16)
- RE: parts (By darack@telus.net, 2007-08-15)
Smook stack (By John Averick, 2006-10-15)
what year is my rd 400 yamaha? (By charlie, 2006-08-20)
New RD400 owner (By Jeff1001, 2006-08-19)
- RE: New RD400 owner (By TJK, 2007-07-06)
rd 400 c (By neil wilson, 2006-06-25)
what kind of battery does this bike have? (By Brandon Bull, 2006-05-24)
- RE: what kind of battery does this bike have? (By Raillery, 2011-06-03)
MAX BORE SIZE (By GEORGE LEE, 2005-11-15)
- RE: MAX BORE SIZE (By Bob Cross, 2008-11-17)
MAX BORE SIZE (By GEORGE LEE, 2005-11-15)
MAX BORE SIZE (By GEORGE LEE, 2005-11-15)
Sniper X (By RD's forever, 2005-11-08)
- RE: Sniper X (By Ken, 2006-01-19)
- RE: Sniper X (By bigspider, 2006-12-21)
- RE: Sniper X (By cool parts, 2007-12-11)
red frame 400e (By micky, 2005-06-03)
- RE: red frame 400e (By Jerry Koon, 2005-06-03)
- RE: red frame 400e (By greatoldbike, 2005-11-27)
Daytona Carbs (By madenglish, 2005-04-10)
- RE: Daytona Carbs (By greatoldbike, 2005-11-27)
RD-400 to sell (By me, 2005-01-10)
1976 RD 400, a steal (By Gunny, 2004-12-14)
- RE: 1976 RD 400, a steal (By the Lt, 2005-05-20)
alain (By duchateau, 2004-12-10)
oil capacity 1979 daytona special rd (By jk, 2004-11-22)
- RE: oil capacity 1979 daytona special rd (By greatoldbike, 2005-11-27)
Sweet 1976 RD 400 - looking to sell (By RD-kitty, 2004-10-29)
sale? (By ryan, 2004-10-11)
big sexy (By ryan, 2004-10-11)
www.aircooled-rd.com (By YoDel, 2004-09-05)
- RE: www.aircooled-rd.com (By Joe Bar, 2004-09-10)
  - RE: www.aircooled-rd.com (By YoDel, 2004-09-10)
- RE: www.aircooled-rd.com (By BIg Al, 2005-08-03)
- RE: www.aircooled-rd.com (By joey l, 2009-06-28)
deseo informacion de un manual de reparaciones del rd 400 (By eduardo arenas, 2004-09-01)
- RE: deseo informacion de un manual de reparaciones del rd 400 (By YoDel, 2004-09-10)
- RE: deseo informacion de un manual de reparaciones del rd 400 (By rafita rd 400 g, 2008-04-07)
  - RE: deseo informacion de un manual de reparaciones del rd 400 (By rafita, 2008-08-30)
- RE: Morning!...I´need copy of owner manual Daytona 400 Sp...... (By Evel K., 2013-03-05)
looking to buy a RD (By Ventshow, 2004-08-24)
Expansion exhausts (By Raf, 2004-08-09)
- RE: Expansion exhausts (By YoDel, 2004-09-10)
mr (By gary jamison, 2004-08-05)
- RE: mr (By YoDel, 2004-09-10)
- RE: mr (By greatoldbike, 2005-11-27)
- RE: mr (By greatoldbike, 2005-11-27)
- Rob (By Rob, 2009-02-20)
SHOULD I? (By G POLES, 2004-08-03)
1977 RD400D (By DIMITRIS, 2004-06-30)
Miss my ´77 (By JS, 2004-05-11)
- RE: Miss my ´77 (By pevanee@pandora., 2004-09-05)
BRIAN (N.IRELAND) (By RD 400 C, 2004-02-15)
- RE: BRIAN (N.IRELAND) (By Gunny, 2004-12-14)
1976 Yamaha RD 400 "Kenny Robberts Special Ed." (By NN, 2004-01-25)
- RE: 1976 Yamaha RD 400 \ (By adam payne, 2010-07-28)
Wrong letter (By Alfonso Rosselli, 2003-09-10)
- RE: Wrong letter (By dimitris, 2004-07-02)
ask for the 1980 rd 400 (By NN, 2003-01-20)
just bought (By NN, 2002-09-07)
- RE: just bought - raid from other bike brand site see CB400F (By mike rimmington, 2003-03-14)
- RE: just bought (By dimitris, 2004-07-02)
- RE: just bought (By dimitris, 2004-07-02)
Yamaha rs400 1978 (By Steve, 2002-07-18)
- RE: Yamaha rs400 1978 (By Russ, 2002-08-12)
- RE: Yamaha rs400 1978 (By carburetors, 2009-09-18)
Wrong power quotes! (By Ric, 2002-01-29)
- RE: Wrong power quotes! (By Laz, 2003-07-11)
  - RE: Wrong power quotes! (By nylon crack, 2005-09-01)

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Discussion forums for individual Yamaha RD 400 motorcycles:

1979 Yamaha RD 400 (Classic, 399 ccm)
1978 Yamaha RD 400 (Classic, 399 ccm)

1977 Yamaha RD 400 C (Classic, 399 ccm)
1976 Yamaha RD 400 C (Sport, 399 ccm)

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