Whymee's #1 & #2 Restore

Got a customizing or restoration project? Discuss it here

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Whymee
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Re: Whymee's #1 & #2 Restore

#121 Post by Whymee » Tue Apr 07, 2020 9:21 am

Agreed gents. Something is not right.

I have rebuilt the calipers, stainless lines, new motul fluid & bled. New pads, not my fav EBC HH though. Old Master.

My other RZ has the same set up other than the addition of a FZ07 master. I have no complaints with that system.

I will have to dig into it.
2.5 RZ350's
2018 Grom
2017 KTM 390
2017 FZ-10
1973 RT3
1974 TY250
plus many others

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nokturnal
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Re: Whymee's #1 & #2 Restore

#122 Post by nokturnal » Wed Apr 08, 2020 10:23 am

old master (not rebuilt?) and pads that have not bedded in to rotors will be an issue to start... also may need to bleed more?

typically i will bleed it to a safe place and then go for a couple rides... a few more bubbles always come out.
:smt017

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Whymee
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Re: Whymee's #1 & #2 Restore

#123 Post by Whymee » Wed Apr 08, 2020 1:39 pm

nokturnal wrote: Wed Apr 08, 2020 10:23 am old master (not rebuilt?) and pads that have not bedded in to rotors will be an issue to start... also may need to bleed more?

typically i will bleed it to a safe place and then go for a couple rides... a few more bubbles always come out.
Totally agree!

I think I am going to throw on a FZ-07 master, like I did to the other RZ.
2.5 RZ350's
2018 Grom
2017 KTM 390
2017 FZ-10
1973 RT3
1974 TY250
plus many others

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JonW
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Re: Whymee's #1 & #2 Restore

#124 Post by JonW » Wed Apr 08, 2020 8:13 pm

Whymee, I see you sent me a PM but I cant get to it as the PM system isnt working right and I cant delete or move any messages for some reason, can you drop me an email instead thru my website? I'll try the PM system again later in the day but for now its broken as far as i can tell :/
80 XT500 Supermoto!
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid

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Whymee
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Re: Whymee's #1 & #2 Restore

#125 Post by Whymee » Wed Apr 08, 2020 8:38 pm

JonW wrote: Wed Apr 08, 2020 8:13 pm Whymee, I see you sent me a PM but I cant get to it as the PM system isnt working right and I cant delete or move any messages for some reason, can you drop me an email instead thru my website? I'll try the PM system again later in the day but for now its broken as far as i can tell :/
And I cannot get your site to work....

https://www.ebay.com/itm/Yamaha-NOS-29L ... Swxv1ejhqN
2.5 RZ350's
2018 Grom
2017 KTM 390
2017 FZ-10
1973 RT3
1974 TY250
plus many others

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JonW
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Re: Whymee's #1 & #2 Restore

#126 Post by JonW » Wed Apr 08, 2020 10:01 pm

Cool thanks mate.

Ive no idea whats wrong with that as all my sites are down, must be ipage :(
80 XT500 Supermoto!
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid

Like Watches? www.PloProf.com & www.DeskDivers.com

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kobra
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Re: Whymee's #1 & #2 Restore

#127 Post by kobra » Fri Apr 10, 2020 1:34 am

My RZ front brakes are not particularly strong either and that's with freshly honed rotors, braided ss lines, and Vesrah sintered pads. I think a smaller master cylinder would really help since there is not much modulation. Then again, I'm used to supersport brakes with 4 piston calipers which will lock the front tire with 1 finger haha. Those might snap the stock fork though...

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Whymee
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Re: Whymee's #1 & #2 Restore

#128 Post by Whymee » Sun Feb 06, 2022 1:20 am

I just wanted to say, that after a coupla years, I might, just might, tinker with my RZ's this winter. Then again maybe not.

Carry on...
2.5 RZ350's
2018 Grom
2017 KTM 390
2017 FZ-10
1973 RT3
1974 TY250
plus many others

85RZwade
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Re: Whymee's #1 & #2 Restore

#129 Post by 85RZwade » Sun Feb 06, 2022 4:04 pm

If we're voting, I'm in support of "tinker"
85 RZ350 daily rider Toomeys, FZ swinger & wheel, Fox shock, Raasks
85 RZ350 JLs, FZ swinger, Katana rear & CBR929 front wheel, CBR600F4 forks & brakes
75 RD350 Ritter-tuned top end, PWK28s, JLs, HPI, TDR wheels, GSX-R forks, Motolana swinger

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Whymee
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Re: Whymee's #1 & #2 Restore

#130 Post by Whymee » Sat Aug 06, 2022 10:44 am

Well it has been a couple years since I fiddled with the R/W/B RZ. I did remember the last time I rode it for any distance (2 mi.) that the clutch felt odd and slipped a tad.

I decided a couple weeks ago to tackle the clutch and an oil leak on the left side. :smt026

My oil leak was coming from the neutral light plate. This is easy, I thought, order a new plate & o-ring.

Tore apart the clutch. Not being able to remember if I bought new items at the time of rebuild, as they did not look new, I ordered FZ1000 fibers, 3 FZ1000 springs, 3 Stock RZ springs and steels. I couldnt find a part number for the steels that would fit without the "divots".

Going back together I happen to grab the basket and twisted it, while it was mounted on the bike. It moved side to side approx 15mm. Hummm... :smt012

No worries I thought as I have a Wiseco Billet basket laying in wait. Took the stock basket apart after grinding off the rivets and punching them out. Attempted to fit the new basket to the gear I took off the stock basket. No go. The small gear would not go thru the center hole in the basket WTF. So dumbass me takes the new basket over to my lathe and proceedes to open up the center hole to accept the gear. trial fitting it together I realize that I was trying to make the gears fit backwards on the basket. And lets be clear I was not under the influence of anything except local air quality. What a senior moment. :smt017 I ruined the basket...

Order a stock basket. 154ish usd. :smt102

This morning I go out to complete the tasks at hand. First thing up is drain the old fuel out of the tank. I am just letting fuel drain out of the 'cock, cause I have the time. I go to remove the gas cap and I find out I have no key...

WTF, I thought. I have had this cap on & off many times since I rebuilt the machine and I could have swore that I used the ignition key to remove said cap. I still hold this belief as I type.

Replaced the neutral cap & o-ring.

Now I am headed out to get that cap off after a search on a tutorial on how to accomplish this task...
2.5 RZ350's
2018 Grom
2017 KTM 390
2017 FZ-10
1973 RT3
1974 TY250
plus many others

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Whymee
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Re: Whymee's #1 & #2 Restore

#131 Post by Whymee » Sat Aug 06, 2022 12:24 pm

So I read about taking the cap off without a key. I pried the silver cap off the top, but did not see the snap ring (or any ring) to remove to get the key set out. So I proceeded to the shade tree way of removing the cap. Drill all the way around the key set and pry. That worked. I have a couple extra caps laying around and I selected one that had a key. In removing items from one to the other I noticed I had a ball left over. I never seen it drop out. It never got put back in...

Put the machine back together and adjusted the oil pump...

The spec is 10 thousandths at idle. Now we all know about the 2 lines that you align with the pin at idle. I always went a tad above. As the machine was idling I proceeded to adjust the cable for this 10 tho. spec, regardless of the alignment marks. My cable was too long. Not enough adjustment. Went back to my crusty, but trusty lathe and made a spacer to go between the cable and the case to take up the slack. Adj. to spec. The hash marks were way below the alignment pin. Humm...

It is my guess that I need to adjust the 2 upper throttle cables to take up the slack that the oil pump is seeing.? I also have a oil pump hiding out in my NOS parts bin. I could try that to see if it is shimmed any better... I will put that on my "to do list".

Now its time to try out my clutch...
2.5 RZ350's
2018 Grom
2017 KTM 390
2017 FZ-10
1973 RT3
1974 TY250
plus many others

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Whymee
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Location: West Virginia, USA

Re: Whymee's #1 & #2 Restore

#132 Post by Whymee » Sat Aug 06, 2022 6:30 pm

Just got back from a 75 miler. Rode it to where I work (today was my day off). Figured if I had to wrench on it, that would be as good as any place.

It has been several years since I put any miles on a RZ. I forgot how smooth the motor is. Light and flickable. I fell in love all over again! I have stock gearing on this one. I can see where it is advantageous to drop a tooth on the countershaft sprocket. I was going 70mph on the interstate just right below the powerband, at about 5.5K rpm.

Clutch preformed flawlessly!

When I left the house I had a tad of a high idle, horns sounded funny and the tach did not work. When I arrived at work, horn was fine, but I noticed that my left shoe was wet. This will come into play on the ride home. Checked my plugs, they were a tad rich, but still brown. Perfect. Set the idle.

I put a magnetic tank bag on the scooter before I left the house. To my dismay, as I was leaving the dealership (work) I forgot to zip up the flap. Lost a couple items, most notably my paycheck. Turned around and looked to no avail. Went back to work & had them stop payment on that check and issue me another one.

So I head on down the road. The good news is the tach started working! Yay!! At about the 7 mile mark, while I was on the interstate, I buzzed the ole RZ up to about 80 mph. I looked down and water (antifreeze?) was blowing all over. Pulled over the next exit, at a Sheets, and discovered my rad cap was very loose. Tightened up the cap and on down the road I go. I was about 2 needles from the red on the gauge for the first mile or so. Luckily I filled the rezzy with coolant to the high mark when I left the house. Fairly fast it dropped to half way on the gauge & I buzzed on home.

All & all I had a great time, minus a couple fopaux, but that was totally on me. The bike preformed flawlessly!

Now I need to get #2 out of hibernation and see if that Toomey motor was worth it!

Blue skies

Stan
2.5 RZ350's
2018 Grom
2017 KTM 390
2017 FZ-10
1973 RT3
1974 TY250
plus many others

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Whymee
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Re: Whymee's #1 & #2 Restore

#133 Post by Whymee » Mon Aug 22, 2022 3:31 pm

I woke up this morning and thought, today is the day to get the Toomey motored machine started.

The motor work was done by ED Toomey of ET Designs sometime in the last quarter of 2019.

This consists of:
Level 2 Cylinder Porting & match power valves to exhaust port
Level 2 Cylinder head mods
Level 2 Case to Cylinder transfer port match
Modify Reed cages (stock) and intake manifolds and install TZ pedals

At the time i did get it running, but was still jetting it leaner until I ran out of leaner sizes to try. Went to the Toomey UNI type of filter/boot and battery box. I was trying to use the stock box 'cuz I really distaste the added intake noise. That did not pan out...

Today I slipped in 155/42/JJH -3/ 3.5 slides into the PWK28's. Motor cranked right up on choke, bled oil lines and shut her off.

Started the bike outside in anticipation of a couple seconds of road time. Sans helmet even. After taking it off choke and blipped the throttle a coupla times, my first though is this trying to sieze? Was VERY lethargic off idle. Did not want to gain RPM's. Did not want to idle (off choke). Did not go past a tad off idle. Barely on the pilot even.

Decided to look at plugs and find my Toomey invoice as it had jetting specs which I did not follow, as I remember it was something weird (to me) about the setup.

Plugs were rich (BPR8ES I think).
Toomey recommends 155/45/AOO/3.5.

Now, I could find no info on the AOO needles, let alone to purchase them. I did find (Jets R Us) where to buy, but no info on taper. Site did say Similar to JJH.

Brings me (us) to the present time as of this typing.

It just popped into my head of the advice that would be given from the brain trust. Call the builder, dumbass...
Last edited by Whymee on Mon Aug 22, 2022 4:56 pm, edited 1 time in total.
2.5 RZ350's
2018 Grom
2017 KTM 390
2017 FZ-10
1973 RT3
1974 TY250
plus many others

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Whymee
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Location: West Virginia, USA

Re: Whymee's #1 & #2 Restore

#134 Post by Whymee » Mon Aug 22, 2022 4:51 pm

Eddie was not around. Left a message asking about the differences between the JJH & the AOO needles.

Without outside assistance I have to start somewhere. Jetting I usually start low & work my way up. Against my gut feeling, I threw in a 45 to replace the 42. My reasoning, better safe than sorry, at least starting out. I felt the bike was rich. Bloody rich.
Started on choke. Few seconds took choke off. To my amazement it idled and had some throttle response from the pilot! Glad I went against my guts!

Went out on a helmet-less cruise. Air screw (1.25T) and pilot (45) seemed close. Did not get off the pilot.

Time for a real test, but alas, this RZ has no plates. DO I switch plates from the other one (just for testing, yanno) or do I do the correct thing and plate it and insure. Or I could park it in the corner for another 2 years... :smt033
2.5 RZ350's
2018 Grom
2017 KTM 390
2017 FZ-10
1973 RT3
1974 TY250
plus many others

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kpke
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Re: Whymee's #1 & #2 Restore

#135 Post by kpke » Tue Aug 23, 2022 9:37 am

It sounds like you're making progress on the jetting. I hope you get it dialed in properly.

I know a guy that has a bunch of RZ350's. He lives in the silly state of California and because the registration fees are so expensive in California, $144 each even on these antique motorcycles, and this makes him quite irritated to pay this fee to ride a few times a year on each bike, most of the bikes remain on non-op. He has been known to do the plate swap to keep the fluids circulating. Crazy guy.

Enjoy your ride.

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