.jpg)
.png)
.jpg)
.png)
.png)
.png)
Welcome to the 1968 Yamaha DT1 Forum. The 1968 was the very first Yamaha Enduro ever made. It is considered by many to be the "Holy Grail" of Enduros. Feel free to post anything related to this model in the category. Anything new, will be added to this section. The factory Yamaha Paint was called "Pearl White". The USA Vin range was: DT1-00101 to 14090. If you see any errors, please contact me privately. There were many errors, in the early Yamaha literature. I will make some error's of my own.
1968 Yamaha DT1 Specifications
⭐️Genuine Yamaha Tuning (GYT) Kit Installed
Model 1968 Yamaha DT1
Dimensions:
Overall Length 81.1 In. 2,060MM.
Overall Width 35.0 In. 890MM.
Overall Height 44.5 In. 1,130 MM.
Wheelbase 53.6 In. 1,360 MM.
Min. Ground Clearance 9.6 In. 245MM.
Weight:
Gross 264 Lbs. 120 Kg.
Net 240 Lbs/109 Kg. ⭐️251 Lbs/113 Kg.
Performance:
Max, Speed 70 MPH (112Km/H) +
Fuel Consumption 94MPG @25MPH or 40KM @ 40KM/H
(On paved level roads)
Climbing Ability 35 Degree
Min. Turning Radius 82.6 In. / 2,100 MM.
Braking Distance 40 ft. at 30MPH / 12.5M at 50KM/H
Engine:
Model DT1
Type 2 Stroke, Gasoline
Lubricating System Separate (Yamaha Autolube)
Cylinder Single, forward inclined 5 Port
Displacement 15 cu. in. (246cc)
Bore X Stroke 2.77 X 2.52 In. (70 X 64MM)
Compression Ratio 6.8:1 ⭐️8.2:1
Max Power 18.5PS/6,000 RPM ⭐️30PS/7,000RPM
Max Torque 16.8 PS/5,000 RPM 2.3KG-m/5,000 RPM
⭐️22.4 Ft-Lbs/6,500 RPM 3.1KG-m/6,500 RPM
Piston Skirt Clearance 0.0016 - 0.0018 In. 0.040 - 0.045MM
⭐️ 0.0016 - 0.0020 In. 0.040 - 0.050MM
Starting System Primary-Coupled Kick
Ignition Timing B.T.D.C 0.126 In. 3.2MM / ⭐️0.091 In. 2.3MM
NGK Spark Plug & Gap B7E 0.5-0.6MM / ⭐️ B9E 0.5-0.6MM
Contact Break Point Gap 0.011 - 0.013 Inch / 0.30 - 0.35 MM
Carburetor:
Type VM26SH (214E) ⭐️VM30SH (214M)
Main Jet # 150 ⭐️# 210
Jet Needle 5D1-3 Stages ⭐️8J-5D05-3
Air Jet 0.5
Needle Jet 0-2
Cut Away 2.5 ⭐️3.5
Pilot Jet (#) 35 ⭐️80
Air Screw (turns out) 1 1/2 ⭐️ 1/2
Starter Jet (#) 60
Intake:
Air Cleaner Dry, Paper Filter Type
Transmission:
Clutch Wet, Multiple Disk
Primary reduction system Helical Gear
Primary reduction ratio 3.095 / (65/21) Teeth
Trans Oil Capacity 1,000cc (1.06 Qts)
Gear Box:
Type Constant Mesh, 5 Speed Forward
1st Gear teeth & Ratio 29/13 20.25 ⭐️29/13 21.70
2nd Gear teeth & Ratio 26/16 14.75 ⭐️26/16 15.81
3rd Gear teeth & Ratio 23/19 10.99 ⭐️23/19 11.78
4th Gear teeth & Ratio 21/21 9.08 ⭐️21/21 9.73
5th Gear teeth & Ratio 19/23 7.50 ⭐️19/23 8.04
Secondary reduction system Chain
Secondary reduction ratio 44/15 2.93 ⭐️44/14 3.143
Chassis:
Frame Tubular-Double Loop
Front Suspension System Front Telescopic fork
Rear Suspension System Swinging Arm
Fork Oil Capacity 210cc (7.1 Oz.) (10W30 Oil)
Front Cushion System Coil Spring / Oil Damper
Rear Cushion System Coil Spring / Oil Damper
Steering System:
Steering Angle 49 Degrees both left & right
Caster 60.5 Degrees
Trail 5.12 In. / 130MM
Braking System:
Type of brake Internal Expansion
Front Operation System Right hand operation
Rear Operation System Right foot operation
Tire Size:
Front 3.25 - 19 - 4 PR
Rear 4.0 - 18 - 4 PR
Front Tire Pressure 12 - 14 P.S.I
Rear Tire Pressure 16 -18 P.S.I
Oil Pump:
Adjustment Stroke Min 0.20 - 0.25 MM
Adjustment Stroke Max 1.85 - 2.05 MM
Dynamo:
Model FZA-1BL
Manufacturer Mitsubishi Elec.
Battery:
Model MV1-6D
Manufactuer Nippon Battery
Lighting:
Head Light 6V 35W/35W
Tail Light 6V 5.3W
Stop Light 6V 17W
Meter Light 6V 3W X 2
Tanks:
Gasoline Tank Capacity 2.5 Gallons (9.5 Liters)
Oil Tank Capacity 1.7 Quarts (1.6 Liters)
Chain:
Tension (Up & down free play) 20MM (25/32)
The 1968 Yamaha DT1 Service Manual is: CLICK HERE
The 1968 Yamaha DT1 Service Manual Supplement is located: CLICK HERE
The 1968 Yamaha DT1 Rider's Manual is: CLICK HERE
The 1968 DT1 - 1968 DT1B Combined Service Manual is Located: CLICK HERE
The Combined 1968-1971 DT1 Service Manual is: CLICK HERE
The 1968 Yamaha DT1 Parts Manual is: CLICK HERE
The 1968 Yamaha DT1 (JDM) Parts Manual is Located: CLICK HERE
The USA 1968 Yamaha DT1 Brochure is: CLICK HERE
The Australia 1968 Yamaha DT1 Brochure is Located: CLICK HERE
The 1968 Yamaha DT1 dealership promo release flyer is located: CLICK HERE
The 1968 Yamaha DT1 Red Enduro flyer is located: CLICK HERE
The 1968 Yamaha DT1 Enduro flyer is located: CLICK HERE
The 1968 Yamaha DT1 Trail flyer is located: CLICK HERE
The 1968 Yamaha DT1 GYT KIT install Article is: CLICK HERE
The 1968 Yamaha DT1 Frame Lowering Article is: Click Here
The Australia Twho Wheels 1968 Yamaha DT1 Article is Located: CLICK HERE
The 1968 Yamaha Oil Pump Color Codes are: CLICK HERE
The 1968 Yamaha DT1 Article Cycle Road Article is: CLICK HERE
The 1968 Yamaha DT1 Cycle Guide Test is: CLICK HERE
The 1968 Yamaha DT1 Advertisement 1 is located: CLICK HERE
The 1968 Yamaha DT1 Advertisement 2 is located: CLICK HERE
The 1968 Yamaha DT1 Advertisement 3 is Located: CLICK HERE
The 1968 Yamaha DT1 Sales Tag is Located: CLICK HERE
The 1968 Yamaha DT1 (JDM) Postage Stamp is Located: CLICK HERE
The 1968 Yamaha DT1 VMX Poster is Located: CLICK HERE
The 1968 Yamaha DT1 JDM Poster is Located: CLICK HERE
The 1968 Yamaha DT1 Postcard is Located: CLICK HERE
The 1968 Yamaha DT1 Match Book is Located: CLICK HERE
