New project '73 Yamaha RD250

[so-cal-sdr200]

Last update was about 6 weeks ago. Making slow progress, but, progress all the same.
Since giving my engine to the famous Mr, Ed to perform some magic. I have completed
the installation of the wiring harness, battery box, air box. All the gages and headlight.
Hooked up the speedometer cable and front brake cable and levers to the handlebars.
Put on the tank and seat just to give it a more complete look.

She is now sitting in the living room as some static art waiting on Horse power.

I did end up buying the Fast From The Past rear sets. Not exactly what I wanted, but,
could not get a hold of Nick from Vintage Smoke. I did not want to have to use the stock
foot passenger foot peg brackets. What the heck. I can cut off the U shape hanger
brackets for the rear pegs. Since the FFTP brackets do not have provision to mount the
stock exhaust pipes.

I picked up some CRG Lane Splitter bar end mirrors. Should add a tasteful look.

More pictures available is anyone is interested.

More to come when I get the motor back from EE.
Cheers, Jeff

[so-cal-sdr200]

Wow, It has been over 6 months since I bumped this thread.
Progress has been slow for various reasons, but, I have the
modified cylinders back from EE, and the O-Ring / Squish
modified heads from Mr. Clough.
Sent the set off the Swain Tech in NY for their BBE thermal
coating process. And the result is shown in the accompanying
picture. Mr EE has the cylinders out for final bore and hone.
We anticipate starting the final assemble to start soon.
Cheers, Jeff

[85RZwade]

Super nice  keep goin'

[so-cal-sdr200]

Well.... just under a month between updates, but, this one is a biggie. At least to me.

Here is a sample of the fine work performed by the famous Mr. Ed

I am going to be so happy to install this beauty in the waiting frame. 

I see a light on the horizon on this year long project.

Cheers, Jeff

[so-cal-sdr200]

  Making steady progress.
Need to install the exhaust, rear set controls, oil pump, cables and a few
odds and ends before we fire it up.
Thanks to EE for the motor build. Sure looks sweet.
Cheers, Jeff

[SoCal250]

Looking great Jeff!  Rippers is ready to ride it! 

[m in sc]

man thats pretty. 

[so-cal-sdr200]

3 1/2 months since the last post.
A lot of that was waiting for the rebuilt oil pump and the missing worm gear
thrust washer that Partzilla took weeks to deliver. Only to find my '73 RD250
does not use that washer...  Wasted days.
The most recent issue was that I pinched the rear tube installing the BT45.
Damn toughest tire I have ever tried to mount to a rim...
So a couple days ago, new tube, and again the worst damn tire to break the
bead and remove / replace the tube. Success!
Now I am having trouble with the rebuilt oil pump. ( see Chuck's oil pump thread )
I will follow up with the repair / fix here or in a new oil pump thread.

Still need to add acid to the battery, and fluids when the pump is working.

Fingers crossed first start up this weekend or next week.

So for the obligatory picture update... From my backyard yesterday.

Cheers, Jeff

[Arrow]

Bike looks amazing, well done.

Sent from my SM-G973F using Tapatalk

[85RZwade]

You've done a great job, can't wait for the ride report!

[Czakky]

She is pretty

[so-cal-sdr200]

Problem solved: PM Sent to Arrow, this is a copy.



You may get a laugh out of this.....wait for it....

The roll pin in the adjuster pulley was pushed in too deep.
It was catching on the pump piston and binding it up.. 

I completely disassembled the pump. Inspected and cleaned up every
little bit of debris, not much, and put it back together. I made the same
mistake that the re-builder did. Installed the roll pin in too deep.
It worked fine till I installed the adjuster pulley and installed the pin.
Backed the pin out .005" - ? and it works fine.

Zoom in on the picture. Not sure anyone can tell from it, but, there it is.

One item of note and a bit of luck. The tiny detent pins that engage the drive
gear, and are spring loaded, popped out and landed on the large towel I was
using on the work bench. That could have gone sooo wrong. Were a PIA to get
back in and properly locate that gear.

Tested the fluid flow, both outputs seem to be even.

Time to get the bike together and finish up the last remaining little things.
  Thanks for your suggestions and guidance.
Jeff

[Arrow]

Result.

Sent from my SM-G973F using Tapatalk

[SoCal250]

Nice! glad you got it resolved Jeff

You were fortunate to not lose the tiny pins and springs from the gear. Lady luck was on your side.

[so-cal-sdr200]

The latest  . Put 1 1/2 qts of injector oil in the tank and the sight glass window leaks.
I can't catch a break.
New one on order.
Is it 5:00 O-clock somewhere? 

Looking like I may not have a running bike for the Hooligan 2-stroke show.