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Yokomo YZ-2

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Old 11-11-2021, 01:35 AM   -   Wikipost
R/C Tech ForumsThread Wiki: Yokomo YZ-2
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Last edit by: lexusbest
Welcome to the YZ2 Wiki!


Features for the lastest specification YZ-2DTM3.1
  • Long specification for dirt Main chassis Inheriting the chassis cut of dirt specification, it is longer with the same wheelbase as CAL3.
  • Aluminum front suspension mount.
  • Z2-DTM2B F2 body.
  • JConcepts ASTRO High Clearance 7inch Wing.
Features for the lastest specification YZ-2CAL3.1
  • Long specification main chassis for carpets. Long wheelbase that enables even higher speeds.
  • Steel front suspension mount.
  • Z2-DTMBL S2 Lightweight body.
  • Z2-CAL2W LMR Wing.
Common features for the lastest specification YZ-2DTM3.1 / YZ-2CAL3.1
  • The conventional position and the position of the suspension arm pin 1 mm higher can be selected on the front and back of the front suspension mount.
  • Bulkhead integrated side plate with increased rigidity.
  • The kingpin position has been changed with the new steering hub carrier, the axle position has been lengthened by 1 mm, and a steering stopper has also been added.
  • Battery holder that is easy to adjust according to the height of the battery.
  • Separate the rear mount base and upper arm holder to increase the flex around the rear and improve traction.
  • Z2-018-5 5-hole shock mounting specification Rear shock tower.
  • S4-S1S 3.0mm shaft specification front shock.
  • S4-S1M 3.0mm shaft specification rear short shock.
  • S4-008R5B L5 / LD Rear suspension arm (Φ3.5 pin).
  • Z2-01069 Rear universal shaft (69mm bone).

Setup Sheets can be found here

DT CA DTM parts comparison

YZ2T Tranny Conversion List

YOKZ2-300RFT
YOKZ2-302CT
YOKZ2-302T
YOKZ2-304T
YOKZ2-503I
YOKZ2-0023

CAL3 manual
DTM3 manual



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Old 05-20-2015, 08:04 AM
  #1081  
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Originally Posted by FLHX1550
Now I haven't tried it, but I'd remove the motor plate brace as a last resort. Not worried about tweaking the chassis, but if you have too much torsional flex, you can run into issues where the chassis will flex in the corner and give you grip on turn in, but the chassis will unload that flex and "snap" you loose.
I've ran without it on carpet - the car really does gain rear grip in a very linear fashion; sometimes almost too much. YMMV
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Old 05-20-2015, 12:44 PM
  #1082  
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Originally Posted by MarkA
I've ran without it on carpet - the car really does gain rear grip in a very linear fashion; sometimes almost too much. YMMV
I put mine back in after last night. I had to much grip which was odd but I did switch out my tires for ones with more pins. (I just drove like crap last night.. lol)

Redemption tonight!

Last edited by joeymdz; 05-20-2015 at 12:56 PM.
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Old 05-20-2015, 06:22 PM
  #1083  
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Originally Posted by FLHX1550
Some tips for rear grip on the YZ - if you are running this car near legal weight (or under) with its front weight bias, I see this car not wanting to transfer weight front to back.

Yes, moving the weight bias back will help this, but try using lower angles of anti-squat and rear toe than you are used to. People are accustomed to 3-4 degrees of both because "that's what I've always run", but with the smoothness of this car I'm having success with 2.5 degrees of toe and 3 degrees of anti squat
It's funny you mentioned the front to rear transfer as one of the fast gifts at my local track was talking about the same thing with his Team C. I'm going to be trying the front rear brass weight as well as the different pills you mentioned.
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Old 05-24-2015, 01:13 PM
  #1084  
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Can someone explain to me the "pills"? What each one equates to. And if someone could explain all the set-up sheets for the YZ-2 I would be extremely thankful.
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Old 05-24-2015, 01:41 PM
  #1085  
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Originally Posted by kbish76
Can someone explain to me the "pills"? What each one equates to. And if someone could explain all the set-up sheets for the YZ-2 I would be extremely thankful.
Post 1055
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Old 05-26-2015, 07:13 AM
  #1086  
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Is the yokomo tranny top shaft the same as the kyosho rb6?
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Old 06-01-2015, 02:22 PM
  #1087  
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Default loose to medium bite track

I was wondering if any of you have gotten this car to work in lower bite setups. I am getting close on setup to my other cars, but was wondering if any of you have suggestion. I have taken off the waterfall brace and the l bracket screws but it doesn't feel consistent. Any more thoughts
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Old 06-01-2015, 03:57 PM
  #1088  
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Originally Posted by cclifton
I was wondering if any of you have gotten this car to work in lower bite setups. I am getting close on setup to my other cars, but was wondering if any of you have suggestion. I have taken off the waterfall brace and the l bracket screws but it doesn't feel consistent. Any more thoughts
Where are you at on added weight? Most of the people trying them on "high-bite" dirt seem to still be getting the weights up - look back a few pages for more on that. I'm out of the loop but I thought you guys were sugaring the dirt down there; still not enough traction from the track itself?
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Old 06-01-2015, 04:04 PM
  #1089  
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Front- vrp 3x1.4 pistons 32.5 wt oil. Xgear white. Stroke 21.75mm Middle middle tower and arm. Camber link middle on bulkhead inside on hub. 1mm washer. Spindles down. 25 and 5 for kick up caster. 23.5 mm ride height. 4mm akerman. 2mm spaced down on steering rack. No bump steer washers

Rear- vrp 1.6x2 pistons 30 wt. Xgear white stroke 27.5mm. Inside on tower inside on arm. Camber link middle on bulkhead center on hub. 1mm on bulkhead 2mm on hub. Arms center hubs center. 3deg toe in 1 deg anti squat. Shim under front rear holder. None under rear rear. 23mm ride height

Misc
bmax2 driveshaft
Bmax4 rear arms if little to no dust
yz2 arms if getting dusty
25g weight under battery
shorty back
brass rear front suspension holder
15 gr in front of front rear holder
No rear motor plate brace
trimmed waterfall
4 center rear side pod screws loosed 1 turn from tight
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Old 06-01-2015, 04:33 PM
  #1090  
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Originally Posted by MarkA
Where are you at on added weight? Most of the people trying them on "high-bite" dirt seem to still be getting the weights up - look back a few pages for more on that. I'm out of the loop but I thought you guys were sugaring the dirt down there; still not enough traction from the track itself?
No sugar yet. Only use sugar during the summer....its coming soon. We found that sugar doesnt work till the temp goes up. We molasses the track when the average day temp is 65 or below and sugar when it hotter. I wish we just had clay in this building but because the building is basically covered and we cant control the inside temp...it would be hard to keep clay at the right moisture content/temp for it to work. Im just happy we have a place to race
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Old 06-01-2015, 04:36 PM
  #1091  
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Thanks, Ill try that setup. Do you have a picture of how you trimmed the waterfall brace
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Old 06-01-2015, 04:38 PM
  #1092  
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Put the waterfall back on. I posted what I run in every condition with just changing tires. I don't change much now. The waterfall will give you a more consistent car. Flex is great until it unsprings and leaves the car a mess coming out of corners. It will flex and twist and contort......then snap back violently
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Old 06-01-2015, 05:12 PM
  #1093  
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Here you go. I took out the center then I beveled the right and left sides to gain flex and allow the wire to clear. I'm also going to raise the waterfall up with 1.5 mm worth of plastic washers to better clear my wires
Attached Thumbnails Yokomo YZ-2-20150326_174056.jpg  
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Old 06-01-2015, 08:25 PM
  #1094  
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Originally Posted by cclifton
No sugar yet. Only use sugar during the summer....its coming soon. We found that sugar doesnt work till the temp goes up. We molasses the track when the average day temp is 65 or below and sugar when it hotter. I wish we just had clay in this building but because the building is basically covered and we cant control the inside temp...it would be hard to keep clay at the right moisture content/temp for it to work. Im just happy we have a place to race
Tell management to put carpet in there! 3 out of 6 Oregon indoor tracks are on carpet (hint hint )
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Old 06-01-2015, 09:54 PM
  #1095  
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Originally Posted by hollywood3705
Here you go. I took out the center then I beveled the right and left sides to gain flex and allow the wire to clear. I'm also going to raise the waterfall up with 1.5 mm worth of plastic washers to better clear my wires
Thanks man
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