News:

Deals Gap Parking lot triage, looking at sunroofed #2:


This year:  May 5-12th.  25th year!
(CLICK IMAGE FOR MEET INFO)

Main Menu

Rd400F Daytona

Started by rearwheelslider, November 29, 2023, 12:41:48 PM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

SoCal250

#30
Quote from: rearwheelslider on December 11, 2023, 12:24:34 PMIs this accurate information? Seems a bit light for head torque.

Quote from: SoCal250 on December 27, 2020, 01:52:51 PM
RD400F  Cylinder head nut torque:
First:  1.0 m-kg (7.2 ft-lbs.)
Final:  2.0 m-kg (14.5 ft-lbs.) 
Yes, that is correct.

Point gap: 0.30~0.40 mm
Timing should be set to about 2.0 mm BTDC (Stock setting is 2.4 mm BTDC +/-0.15)
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)

gardenhosebusabottle

#31
Revvy in the house.  i need to hear another backfire while cruising the strip in San Jo bro.  :)

Victricity!  R5 carbs worked on my daytona.

I think i was at a 230 main, 169-p2, 5DP7-5, 30 pilot between 1/2 and 1.0 turns...I don't think it had to be modified for a 2.0 airjet, since it was pre smog, but Mark can confirm.  been awhile.  Maybe as high as a 35 pilot.

good luck.

Don't remember if i had to change the brass fittings ont he top fo carbs, also bought a premix only cable.   32:1 was what i was running w/ spec II pipes, uni filter banshee crossover and intakes.

I think these new VM carbs have smaller slides...hmm.  a little more restrictive?

oh sit.  I have RB Design carbs new still in box w/ divider plate, but i need money anyone interested?  These are the new VM's modified for an RD, Ron doesn't make them AFAIK anymore...Don't ask me how to jet them...*uck if i know.

rearwheelslider

Quote from: gardenhosebusabottle on December 11, 2023, 12:44:08 PMRevvy in the house.  i need to hear another backfire while cruising the strip in San Jo bro.  :)

Victricity!  R5 carbs worked on my daytona.

I think i was at a 230 main, 169-p2, 5DP7-5, 30 pilot between 1/2 and 1.0 turns...I don't think it had to be modified for a 2.0 airjet, since it was pre smog, but Mark can confirm.  been awhile.  Maybe as high as a 35 pilot.

good luck.

Don't remember if i had to change the brass fittings ont he top fo carbs, also bought a premix only cable.   32:1 was what i was running w/ spec II pipes, uni filter banshee crossover and intakes.

I think these new VM carbs have smaller slides...hmm.  a little more restrictive?

oh sit.  I have RB Design carbs new still in box w/ divider plate, but i need money anyone interested?  These are the new VM's modified for an RD, Ron doesn't make them AFAIK anymore...Don't ask me how to jet them...*uck if i know.
Hi uncle reverend kevin! How you be? I just bought some carbs, PWK Keihin 28mm. Hope it doesnt backfire!
1979 RD400F Daytona with Wicked chambers, Y boot, PWK30mm's.
1982 CB900F
2008 Speed Triple 1050
2001 CR250R

gardenhosebusabottle

Quote from: rearwheelslider on December 11, 2023, 02:16:15 PMHi uncle reverend kevin! How you be? I just bought some carbs, PWK Keihin 28mm. Hope it doesnt backfire!

Good luck w/ those.  It looks like you bought PWK30s? is that right?....if so, you probably did good as the larger PWKs also have a larger selection of needles vs. the 28s...that's a GOOD thing.  I think when i was tinkering w/ PWK28s i had the timing backwards (my understanding  :shocked: at that time), so not much success jetting at that time, obviously.

That B.O.C. concert up at Muckleshoot was cancelled, Buck (guitarist) got sick w/ pneumonia.  Will be going back Jan. 27th as it was recscheduled. 

I be chillin' 3 day weekends this week and the 2 after that.  Had to use my floating holidays up before i LOSE when the New year comes in.



 

rearwheelslider

Quote from: gardenhosebusabottle on December 11, 2023, 09:13:37 PM
Quote from: rearwheelslider on December 11, 2023, 02:16:15 PMHi uncle reverend kevin! How you be? I just bought some carbs, PWK Keihin 28mm. Hope it doesnt backfire!

Good luck w/ those.  It looks like you bought PWK30s? is that right?....if so, you probably did good as the larger PWKs also have a larger selection of needles vs. the 28s...that's a GOOD thing.  I think when i was tinkering w/ PWK28s i had the timing backwards (my understanding  :shocked: at that time), so not much success jetting at that time, obviously.

That B.O.C. concert up at Muckleshoot was cancelled, Buck (guitarist) got sick w/ pneumonia.  Will be going back Jan. 27th as it was recscheduled. 

I be chillin' 3 day weekends this week and the 2 after that.  Had to use my floating holidays up before i LOSE when the New year comes in.



 

Guitarists dont need a voice! Weak!
1979 RD400F Daytona with Wicked chambers, Y boot, PWK30mm's.
1982 CB900F
2008 Speed Triple 1050
2001 CR250R