Reassembly White RZ

[m in sc]

get it tim! no drips thrn, awesome

[scully]

Chambers on. Spigots sealed with high temp sealant.

Repacked and cans reinstalled. The plan is initial fire up tomorrow on premix to verify oil pump operation and 1st heat cycle.

going to let anyone ride it this year :)

[Kawtriplefreak]

Of course I will.

[Kawtriplefreak]

I put 53 miles on the white RZ. Tuning in progress due to the increased length of the intake tract from the Vitos billet intake. It was quite rich off idle to 1/4 throttle. Started at 1.0 turns out on the airscrews as it was set up before and ended at 1.75 turns out and got it much better. Above 1/4 throttle it is perfect. I made several runs and varied throttle position, loaded the motor briefly and did not exceed 7000 RPMs. Overall I am quite pleased with the performance. Currently running 40 pilots. I am going to try a set of 37.5s and see if I can get it closer. Also the Wicked ATV billet head has resulted in lower operating temperatures. It was unseasonably warm here yesterday in the low 80s and the maximum temperature I saw was 166 in the mountains.

[m in sc]

  

[Kawtriplefreak]

Put in a set of 37.5 pilots and all the driveabilty went away. Lean surging. Put the 40s back in and it is like it was yesterday, pretty close. Gonna richen the needle one clip one position and see if
 Can get closer. Put 20 more miles on today.

[Kawtriplefreak]

Thanks to M in SC for the link to these soft hose stainless hose clamps that arrived today from McMaster Carr. No doubt they will lengthen the life of the soft rubber Vitos intakes.

[Kawtriplefreak]

A very smart guy I know M in SC once told me: 90% of jetting problems are electrical. I had been having an intermittent low speed stumble and occasional backfire on a cold start which I attributed to a fuel mixture problem.
Today after moving the needle clip to the middle from one lean I feared I wasn't going to make it back home. I have been running with the RH side panel body work removed so I could easily remove the RH Uni Pod filter to gain access to the LH carb pilot airscrew along the road without having to take the seat off. After an adjustment the bike lurched and popped and missed and lost power on take off only to run fine after 3000 RPMs. I took it home and back on the lift it went. Took the gas tank off and started checking connections. When I pulled on the main feed wire to the harness(the positive battery lead) it separated very easily.

It was also quite green with corrosion. I cut both ends of the bullet connector off and cut the wire back until I got good shiny copper. The out came my vintage connections wiring kit courtesy of John at Economy Cycle and replaced the connectors and rubber sleeve.
Put it all back together and did another tuning run. Bike ran perfect and the jetting is very close. Now at 360 mains, 40 pilots, needles in the middle clip and airscrews at 1.75 turns out. My tentative theory is that the missing side cover changed the air flow enough that it aggravated an already bad connection. The rebuild now has just over 100 miles on it and I am quite pleased with the performance. Thank to everyone who made it possible.

[m in sc]

  and there it is!     

[SoCal250]

 

[dgorms]

  

[Kawtriplefreak]

Now that it is getting proper voltage it was rich on the transition at 1/8 to 1/4 throttle. So I moved the needle back to 1 lean and it runs really good. 130 miles on the rebuild. Sorted for now. On to Gap Prep on the Orange RD350B.

[Kawtriplefreak]

A big shout out to my dear friend Evans Ward who so generously
gave me this WICKED ATV billet oil pump cover. Bead blasted and shot with clear and didn't like the contrast so Duplicolor Ceramic caliper paint it is. Baked at 200 in my shop oven before and after