Yamaha Yl1 Manual

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Yamaha Yl1 Manual

Yamaha NOS YL1, 1966-67, Brush, # 132-81211-10-00, d-34. Trending at $6.71 +$6.00 shipping. 2 Stroke Motorized Bicycle Racing Carb Carburetor For 49cc 50cc 60.
1966 Yamaha Yl1
Yamaha Yl1 For Sale
Yamaha Yl1 Specs

1966 Yamaha Yl1Y > YamahaThis time it's for the YL1, since we have one in the collection we figured we'd upload the parts list. As always, you can view it using the link below (or download it for personal use if you right click it), or click through to the Manuals section to view all manuals.
Auction Lot W124, Las Vegas, NV 2018. Completely original 1966 Yamaha YL1'Twin Jet'. Believed to be only 271 original miles. Antique Motorcycle Club of America 2017 'Winner's Circle' Award, earning 99.5 points. Manuals, magazine, keys included. From private collection.

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 DimensionsCS3B/CS5RD200YDS3YDS3CYDS5DS6CDS6/BDS7RD250/A/BYM1YM2/CYR2/CR3/CR5/B/CRD350/A/BRD400C
Net Weight (lbs)258256320320325.6309304304309340326348340308315342
Overall Length (in)76.077.079.079.078.478.378.380.380.378.973.381.280.380.380.379.3
Overall Width (in)32.129.031.231.230.332.932.932.932.931.231.228.935.232.932.932.7
Overall Height (in)40.239.842.042.041.441.941.942.743.742.038.139.442.742.743.742.9
Ground Clearance (in)6.96.15.85.86.15.96.15.95.95.96.15.75.96.16.16.1
Wheelbase (in)49.049.051.951.950.850.850.852.052.050.751.052.652.852.052.051.8
Tire Size-Frt2.75x182.75x183.00x183.00x183.00x183.00x183.00x183.00x183.00x183.00x183.00x183.00x183.00x183.00x183.00x183.25x18
Tire Size-Rear3.00x183.00x183.25x183.50x183.25x183.50x183.25x183.25x183.25x183.25x183.25x183.50x183.50x183.50x183.50x183.50x18
EngineCS3B/CS5RD200YDS3YDS3CYDS5DS6CDS6/BDS7RD250/A/BYM1YM2/CYR2/CR3/CR5/B/CRD350/A/BRD400C
Displacement (cc)195195246246246246246247247305305348348347347398
Cylinders222222222222222
Bore X Stroke (mm)52x4652x4656x5056x5056x5056x5056x5054x5454x5460x5460x5461x59.661x59.664x5464x5464x62
Compression Ratio7.17.17.57.57.57.37.37.16.76.77.56.97.56.96.66.2
Torque @ RPM (ft lb)15.7 @ 700015.7 @ 700018.1 @ 750018.1 @ 750019.7 @ 750021.1 @ 700021.1 @ 700021.1 @ 700021.1 @ 700019.9 @ 600023.4 @ 650027.8 @ 600028.0 @ 600028.0 @ 650028.0 @ 7000NA
Fuel InductPPRDPPPPPPPPPPPPRDPPPPPPPPPPRDRD
Carburetion (Mikuni)VM20SC (2)Y20P-1AVM24SC (2)VM24SC (2)VM26SC (2)VM26SC (2)VM26SC (2)VM26SC (2)VM28SC (2)VM24SC (2)VM26SC (2)VM28SC (2)VM28SC (2)VM28SC (2)VM28SC (2)VM28SC (2)
LubricationOIOIOIOIOIOIOIOIOIOIOIOIOIOIOIOI
 TransmissionCS3B/CS5RD200YDS3YDS3CYDS5DS6CDS6/BDS7RD250/A/BYM1YM2/CYR2/CR3/CR5/B/CRD350/A/BRD400C
ClutchManualManualManualManualManualManualManualManualManualManualManualManualManualManualManualManual
Reduction (pri/sec)3.313/2.8573.312/2.5713.250/2.6003.250/2.7333.250/2.7333.250/2.9293.250/2.7333.238/2.6663.238/2.6663.250/2.3533.250/2.5002.870/2.5632.870/2.7302.869/2.6662.869/2.666NA
Transmission Ratio: 1st2.8332.8332.5452.5452.5452.5452.5452.5622.5712.5452.5452.5452.5452.5622.5712.571
2nd1.8751.7051.5331.5331.5331.5331.5331.5901.7771.5331.5331.6001.6001.5901.7771.777
3rd1.4211.2501.1671.1671.1671.1671.1671.1921.3181.1671.1671.1671.1671.1921.3181.318
4th1.0451.0450.9500.9500.9500.9500.9500.9651.0400.9500.0950.0950.0950.9651.0401.083
5th0.8400.9160.7730.7730.7730.7730.7730.8060.8880.7730.7730.7730.7730.8060.8880.961
6th------------------------0.785---------------0.7850.888
 ElectricsCS3B/CS5RD200YDS3YDS3CYDS5DS6CDS6/BDS7RD250/A/BYM1YM2/CYR2/CR3/CR5/B/CRD350/A/BRD400C
IgnitionGeneratorGeneratorGeneratorGeneratorGeneratorGeneratorGeneratorAlternatorAlternatorGeneratorMagnetoGeneratorGeneratorGeneratorAlternatorAlternator
StartingElecElecKickKickElecKickKickKickKickKickKickKickKickKickKickKick
Yamaha Yl1 SpecsYamaha Off-Road
 DimensionsU5/L/ERD60Early YJ2Late YJ2U7/EYGS1/TY5S/TG5S/G6S/
 G6SB/G7SHS1/BYL2DimensionsYL2CYL2CMLS2YL1/EYA6YAS1/C/
 AS2CRD125YCS1CYCS1CS3C
Net Weight (lbs)190163190190170190175170199200Net Weight (lbs)200200209180245220228260260262
Overall Length (in)71.171.971.371.3---71.770.971.370.975.4Overall Length (in)73.273.2---71.675.673.076.275.675.676.0
Overall Width (in)24.824.825.425.4---24.6/30.531.731.130.328.1Overall Width (in)28.128.1---24.828.531.938.130.130.132.1
Overall Height (in)37.238.038.438.4---37.8/38.840.039.239.641.7Overall Height (in)42.542.5---37.341.139.641.739.239.240.2
Ground Clearance (in)5.15.95.55.5---5.96.35.36.15.5Ground Clearance (in)7.96.9---5.15.35.96.16.16.16.9
Wheelbase (in)44.946.745.145.1---45.146.345.947.046.9Wheelbase (in)48.548.5---45.149.047.248.849.049.049.0
Tire Size-Frt2.25x172.50x172.25x172.25x172.25x172.50x172.50x172.50x172.50x182.50x18Tire Size-Frt3.00x183.00x182.50x182.50x173.00x162.75x182.75x182.75x183.00x182.75x18
Tire Size-Rear2.25x172.50x172.25x172.25x172.50x172.50x173.00x172.50x172.50x182.50x18Tire Size-Rear3.00x183.00x182.50x182.50x173.00x163.00x183.00x183.00x183.00x183.00x18
EngineU5/L/ERD60Early YJ2Late YJ2U7/EYGS1/TY5S/TG5S/G6S/
 G6SB/G7SHS1/BYL2EngineYL2CYL2CMLS2YL1/EYA6YAS1/C/
 AS2CRD125YCS1CYCS1CS3C
Displacement (cc)50555858727373738997Displacement (cc)97979798123124124180180190
Cylinders1111111121Cylinders1122122222
Bore X Stroke (mm)40x4042x39.742x4242x4247x4247x4247x4247x4236.5x4352x45.6Bore X Stroke (mm)52x45.652x45.638x4038x4356x5043x4343x4350x4650x4652x46
Compression Ratio6.86.96.67.56.86.86.86.87.57.0Compression Ratio7.06.67.07.16.87.07.07.06.86.2
Torque @ RPM (ft lb)3.76 @ 50003.40 @ 65003.90 @ 60003.98 @ 60004.70 @ 45005.78 @ 65005.20 @ 60004.10 @ 55003.10 @ 55006.80@ 5500 Torque @ RPM (ft lb)7.24 @ 60007.24 @ 60006.95 @ 75006.00 @ 80009.00 @ 50009.40 @ 7500NA14.60 @ 700014.60 @ 700015.70 @ 7000
Fuel InductRVRDRVRVRDRVRVRVPPRVFuel InductRVRVPPPPRVPPRDPPPPPP
Carburetion (Mikuni)VM14SCVM16SHVM14SCVM16SCVM15SCVM15SC-1VM16SCVM16SCVM16SC (2)VM17SCCarburetion (Mikuni)VM17SCVM20SCVM17SC (2)VM16SC (2)VM22SCVM17SC (2)Y18P-1CVM20SC (2)VM18SC (2)VM20SC (2)
LubricationOIOIOIOIOIOIOIOIOIOILubricationOIOIOIOIOIOIOIOIOIOI
 TransmissionU5/L/ERD60Early YJ2Late YJ2U7/EYGS1/TY5S/TG5S/G6S/
 G6SB/G7SHS1/BYL2TransmissionYL2CYL2CMLS2YL1/EYA6YAS1/C/
 AS2CRD125YCS1CYCS1CS3C
ClutchAutoManualManualManualAutoManualManualManualManualManualClutchManualManualManualManualManualManualManualManualManualManual
Reduction (pri/sec)3.895/2.7153.578/3.5003.895/2.6003.895/2.5333.578/2.5713.895/2.4673.895/2.7403.895/2.6433.895/3.0773.895/2.335Reduction (pri/sec)3.895/2.3353.895/2.3343.894/3.0003.895/2.3353.833/2.6003.895/2.6003.894/2.7853.313/2.6673.313/2.4663.313/2.857
Transmission Ratio: 1st3.0833.2503.0833.0833.2503.0833.0773.0773.1823.077Transmission Ratio: 1st3.0773.0773.1813.0772.5333.1823.1812.8332.8332.833
2nd1.7222.0001.8821.8821.8331.8821.8891.8891.8131.8892nd1.8891.8891.8121.8891.5241.8751.8121.8751.8751.875
3rd1.1741.4281.3381.3331.2001.3331.3041.3041.3001.3043rd1.3041.3041.3001.3041.1201.3001.3001.4211.4211.421
4th---1.1251.0001.000---1.0000.9630.9631.0450.9634th0.9630.9631.0450.9630.8281.0451.0451.0451.0451.045
5th---0.961------------------0.840---5th------0.840------0.8400.8400.8400.8400.840
6th------------------------------6th------------------------------
 ElectricsU5/L/ERD60Early YJ2Late YJ2U7/EYGS1/TY5S/TG5S/G6S/
 G6SB/G7SHS1/BYL2ElectricsYL2CYL2CMLS2YL1/EYA6YAS1/C/
 AS2CRD125YCS1CYCS1CS3C
IgnitionMagnetoMagnetoMagnetoMagnetoGeneratorMagnetoGeneratorMagnetoAlternatorGeneratorIgnitionGeneratorGeneratorAlternatorGeneratorGeneratorAlternatorAlternatorGeneratorGeneratorGenerator
StartingKick/ElecKickKickKickKick/ElecKickElecKickKickKickStartingElecElecKickKick/ElecElecKickKickElecElecElec

Dimensions	CS3B/CS5	RD200	YDS3	YDS3C	YDS5	DS6C	DS6/B	DS7	RD250/A/B	YM1	YM2/C	YR2/C	R3/C	R5/B/C	RD350/A/B	RD400C
Net Weight (lbs)	258	256	320	320	325.6	309	304	304	309	340	326	348	340	308	315	342
Overall Length (in)	76.0	77.0	79.0	79.0	78.4	78.3	78.3	80.3	80.3	78.9	73.3	81.2	80.3	80.3	80.3	79.3
Overall Width (in)	32.1	29.0	31.2	31.2	30.3	32.9	32.9	32.9	32.9	31.2	31.2	28.9	35.2	32.9	32.9	32.7
Overall Height (in)	40.2	39.8	42.0	42.0	41.4	41.9	41.9	42.7	43.7	42.0	38.1	39.4	42.7	42.7	43.7	42.9
Ground Clearance (in)	6.9	6.1	5.8	5.8	6.1	5.9	6.1	5.9	5.9	5.9	6.1	5.7	5.9	6.1	6.1	6.1
Wheelbase (in)	49.0	49.0	51.9	51.9	50.8	50.8	50.8	52.0	52.0	50.7	51.0	52.6	52.8	52.0	52.0	51.8
Tire Size-Frt	2.75x18	2.75x18	3.00x18	3.00x18	3.00x18	3.00x18	3.00x18	3.00x18	3.00x18	3.00x18	3.00x18	3.00x18	3.00x18	3.00x18	3.00x18	3.25x18
Tire Size-Rear	3.00x18	3.00x18	3.25x18	3.50x18	3.25x18	3.50x18	3.25x18	3.25x18	3.25x18	3.25x18	3.25x18	3.50x18	3.50x18	3.50x18	3.50x18	3.50x18
Engine	CS3B/CS5	RD200	YDS3	YDS3C	YDS5	DS6C	DS6/B	DS7	RD250/A/B	YM1	YM2/C	YR2/C	R3/C	R5/B/C	RD350/A/B	RD400C
Displacement (cc)	195	195	246	246	246	246	246	247	247	305	305	348	348	347	347	398
Cylinders	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
Bore X Stroke (mm)	52x46	52x46	56x50	56x50	56x50	56x50	56x50	54x54	54x54	60x54	60x54	61x59.6	61x59.6	64x54	64x54	64x62
Compression Ratio	7.1	7.1	7.5	7.5	7.5	7.3	7.3	7.1	6.7	6.7	7.5	6.9	7.5	6.9	6.6	6.2
Torque @ RPM (ft lb)	15.7 @ 7000	15.7 @ 7000	18.1 @ 7500	18.1 @ 7500	19.7 @ 7500	21.1 @ 7000	21.1 @ 7000	21.1 @ 7000	21.1 @ 7000	19.9 @ 6000	23.4 @ 6500	27.8 @ 6000	28.0 @ 6000	28.0 @ 6500	28.0 @ 7000	NA
Fuel Induct	PP	RD	PP	PP	PP	PP	PP	PP	RD	PP	PP	PP	PP	PP	RD	RD
Carburetion (Mikuni)	VM20SC (2)	Y20P-1A	VM24SC (2)	VM24SC (2)	VM26SC (2)	VM26SC (2)	VM26SC (2)	VM26SC (2)	VM28SC (2)	VM24SC (2)	VM26SC (2)	VM28SC (2)	VM28SC (2)	VM28SC (2)	VM28SC (2)	VM28SC (2)
Lubrication	OI	OI	OI	OI	OI	OI	OI	OI	OI	OI	OI	OI	OI	OI	OI	OI
Transmission	CS3B/CS5	RD200	YDS3	YDS3C	YDS5	DS6C	DS6/B	DS7	RD250/A/B	YM1	YM2/C	YR2/C	R3/C	R5/B/C	RD350/A/B	RD400C
Clutch	Manual	Manual	Manual	Manual	Manual	Manual	Manual	Manual	Manual	Manual	Manual	Manual	Manual	Manual	Manual	Manual
Reduction (pri/sec)	3.313/2.857	3.312/2.571	3.250/2.600	3.250/2.733	3.250/2.733	3.250/2.929	3.250/2.733	3.238/2.666	3.238/2.666	3.250/2.353	3.250/2.500	2.870/2.563	2.870/2.730	2.869/2.666	2.869/2.666	NA
Transmission Ratio: 1st	2.833	2.833	2.545	2.545	2.545	2.545	2.545	2.562	2.571	2.545	2.545	2.545	2.545	2.562	2.571	2.571
2nd	1.875	1.705	1.533	1.533	1.533	1.533	1.533	1.590	1.777	1.533	1.533	1.600	1.600	1.590	1.777	1.777
3rd	1.421	1.250	1.167	1.167	1.167	1.167	1.167	1.192	1.318	1.167	1.167	1.167	1.167	1.192	1.318	1.318
4th	1.045	1.045	0.950	0.950	0.950	0.950	0.950	0.965	1.040	0.950	0.095	0.095	0.095	0.965	1.040	1.083
5th	0.840	0.916	0.773	0.773	0.773	0.773	0.773	0.806	0.888	0.773	0.773	0.773	0.773	0.806	0.888	0.961
6th	---	---	---	---	---	---	---	---	0.785	---	---	---	---	---	0.785	0.888
Electrics	CS3B/CS5	RD200	YDS3	YDS3C	YDS5	DS6C	DS6/B	DS7	RD250/A/B	YM1	YM2/C	YR2/C	R3/C	R5/B/C	RD350/A/B	RD400C
Ignition	Generator	Generator	Generator	Generator	Generator	Generator	Generator	Alternator	Alternator	Generator	Magneto	Generator	Generator	Generator	Alternator	Alternator
Starting	Elec	Elec	Kick	Kick	Elec	Kick	Kick	Kick	Kick	Kick	Kick	Kick	Kick	Kick	Kick	Kick

Dimensions	U5/L/E	RD60	Early YJ2	Late YJ2	U7/E	YGS1/T	Y5S/T	G5S/G6S/ G6SB/G7S	HS1/B	YL2	Dimensions	YL2C	YL2CM	LS2	YL1/E	YA6	YAS1/C/ AS2C	RD125	YCS1C	YCS1	CS3C
Net Weight (lbs)	190	163	190	190	170	190	175	170	199	200	Net Weight (lbs)	200	200	209	180	245	220	228	260	260	262
Overall Length (in)	71.1	71.9	71.3	71.3	---	71.7	70.9	71.3	70.9	75.4	Overall Length (in)	73.2	73.2	---	71.6	75.6	73.0	76.2	75.6	75.6	76.0
Overall Width (in)	24.8	24.8	25.4	25.4	---	24.6/30.5	31.7	31.1	30.3	28.1	Overall Width (in)	28.1	28.1	---	24.8	28.5	31.9	38.1	30.1	30.1	32.1
Overall Height (in)	37.2	38.0	38.4	38.4	---	37.8/38.8	40.0	39.2	39.6	41.7	Overall Height (in)	42.5	42.5	---	37.3	41.1	39.6	41.7	39.2	39.2	40.2
Ground Clearance (in)	5.1	5.9	5.5	5.5	---	5.9	6.3	5.3	6.1	5.5	Ground Clearance (in)	7.9	6.9	---	5.1	5.3	5.9	6.1	6.1	6.1	6.9
Wheelbase (in)	44.9	46.7	45.1	45.1	---	45.1	46.3	45.9	47.0	46.9	Wheelbase (in)	48.5	48.5	---	45.1	49.0	47.2	48.8	49.0	49.0	49.0
Tire Size-Frt	2.25x17	2.50x17	2.25x17	2.25x17	2.25x17	2.50x17	2.50x17	2.50x17	2.50x18	2.50x18	Tire Size-Frt	3.00x18	3.00x18	2.50x18	2.50x17	3.00x16	2.75x18	2.75x18	2.75x18	3.00x18	2.75x18
Tire Size-Rear	2.25x17	2.50x17	2.25x17	2.25x17	2.50x17	2.50x17	3.00x17	2.50x17	2.50x18	2.50x18	Tire Size-Rear	3.00x18	3.00x18	2.50x18	2.50x17	3.00x16	3.00x18	3.00x18	3.00x18	3.00x18	3.00x18
Engine	U5/L/E	RD60	Early YJ2	Late YJ2	U7/E	YGS1/T	Y5S/T	G5S/G6S/ G6SB/G7S	HS1/B	YL2	Engine	YL2C	YL2CM	LS2	YL1/E	YA6	YAS1/C/ AS2C	RD125	YCS1C	YCS1	CS3C
Displacement (cc)	50	55	58	58	72	73	73	73	89	97	Displacement (cc)	97	97	97	98	123	124	124	180	180	190
Cylinders	1	1	1	1	1	1	1	1	2	1	Cylinders	1	1	2	2	1	2	2	2	2	2
Bore X Stroke (mm)	40x40	42x39.7	42x42	42x42	47x42	47x42	47x42	47x42	36.5x43	52x45.6	Bore X Stroke (mm)	52x45.6	52x45.6	38x40	38x43	56x50	43x43	43x43	50x46	50x46	52x46
Compression Ratio	6.8	6.9	6.6	7.5	6.8	6.8	6.8	6.8	7.5	7.0	Compression Ratio	7.0	6.6	7.0	7.1	6.8	7.0	7.0	7.0	6.8	6.2
Torque @ RPM (ft lb)	3.76 @ 5000	3.40 @ 6500	3.90 @ 6000	3.98 @ 6000	4.70 @ 4500	5.78 @ 6500	5.20 @ 6000	4.10 @ 5500	3.10 @ 5500	6.80@ 5500	Torque @ RPM (ft lb)	7.24 @ 6000	7.24 @ 6000	6.95 @ 7500	6.00 @ 8000	9.00 @ 5000	9.40 @ 7500	NA	14.60 @ 7000	14.60 @ 7000	15.70 @ 7000
Fuel Induct	RV	RD	RV	RV	RD	RV	RV	RV	PP	RV	Fuel Induct	RV	RV	PP	PP	RV	PP	RD	PP	PP	PP
Carburetion (Mikuni)	VM14SC	VM16SH	VM14SC	VM16SC	VM15SC	VM15SC-1	VM16SC	VM16SC	VM16SC (2)	VM17SC	Carburetion (Mikuni)	VM17SC	VM20SC	VM17SC (2)	VM16SC (2)	VM22SC	VM17SC (2)	Y18P-1C	VM20SC (2)	VM18SC (2)	VM20SC (2)
Lubrication	OI	OI	OI	OI	OI	OI	OI	OI	OI	OI	Lubrication	OI	OI	OI	OI	OI	OI	OI	OI	OI	OI
Transmission	U5/L/E	RD60	Early YJ2	Late YJ2	U7/E	YGS1/T	Y5S/T	G5S/G6S/ G6SB/G7S	HS1/B	YL2	Transmission	YL2C	YL2CM	LS2	YL1/E	YA6	YAS1/C/ AS2C	RD125	YCS1C	YCS1	CS3C
Clutch	Auto	Manual	Manual	Manual	Auto	Manual	Manual	Manual	Manual	Manual	Clutch	Manual	Manual	Manual	Manual	Manual	Manual	Manual	Manual	Manual	Manual
Reduction (pri/sec)	3.895/2.715	3.578/3.500	3.895/2.600	3.895/2.533	3.578/2.571	3.895/2.467	3.895/2.740	3.895/2.643	3.895/3.077	3.895/2.335	Reduction (pri/sec)	3.895/2.335	3.895/2.334	3.894/3.000	3.895/2.335	3.833/2.600	3.895/2.600	3.894/2.785	3.313/2.667	3.313/2.466	3.313/2.857
Transmission Ratio: 1st	3.083	3.250	3.083	3.083	3.250	3.083	3.077	3.077	3.182	3.077	Transmission Ratio: 1st	3.077	3.077	3.181	3.077	2.533	3.182	3.181	2.833	2.833	2.833
2nd	1.722	2.000	1.882	1.882	1.833	1.882	1.889	1.889	1.813	1.889	2nd	1.889	1.889	1.812	1.889	1.524	1.875	1.812	1.875	1.875	1.875
3rd	1.174	1.428	1.338	1.333	1.200	1.333	1.304	1.304	1.300	1.304	3rd	1.304	1.304	1.300	1.304	1.120	1.300	1.300	1.421	1.421	1.421
4th	---	1.125	1.000	1.000	---	1.000	0.963	0.963	1.045	0.963	4th	0.963	0.963	1.045	0.963	0.828	1.045	1.045	1.045	1.045	1.045
5th	---	0.961	---	---	---	---	---	---	0.840	---	5th	---	---	0.840	---	---	0.840	0.840	0.840	0.840	0.840
6th	---	---	---	---	---	---	---	---	---	---	6th	---	---	---	---	---	---	---	---	---	---
Electrics	U5/L/E	RD60	Early YJ2	Late YJ2	U7/E	YGS1/T	Y5S/T	G5S/G6S/ G6SB/G7S	HS1/B	YL2	Electrics	YL2C	YL2CM	LS2	YL1/E	YA6	YAS1/C/ AS2C	RD125	YCS1C	YCS1	CS3C
Ignition	Magneto	Magneto	Magneto	Magneto	Generator	Magneto	Generator	Magneto	Alternator	Generator	Ignition	Generator	Generator	Alternator	Generator	Generator	Alternator	Alternator	Generator	Generator	Generator
Starting	Kick/Elec	Kick	Kick	Kick	Kick/Elec	Kick	Elec	Kick	Kick	Kick	Starting	Elec	Elec	Kick	Kick/Elec	Elec	Kick	Kick	Elec	Elec	Elec