My yamaha xt600e starts to to choke/stall like if iit lacks gasoline every time i pass 5k rpm in 2nd,3rd,4th or 5th gear. What could it be?

time to put a new tranny in that jet most of the time it costs to much to repair it then replace it i have done may tranny rebuilds and replacements to me i would just tell you to replace it at least you will get a better warrentee and stuff

possible bent or worn shift fork 3rd gear

the function of the gears are to transfer and convert energy created by the engine into momentum

Howdy: The 3rd and 4th gears are used the most, after awhile the dog and shifting forks get worn more. Try changing to Yamaha Lube simi-syn oil 10/40. Drain oil after warm up (get trans oil warm). The oil is in a silver 4gal containe at the Yamaha dealer. This oil has helped me.
Good luck - Doug

J1/S1 Found in: Integra XSI/RSI (DA6) Type: Cable 1st: 3.230 2nd: 2.105 3rd: 1.458 4th: 1.107 5th: 0.848 R: 3.000 FD: 4.400 Y1 Found in: CRX/Civic (optional LSD) Type: Cable 1st: 3.166 2nd: 2.052 3rd: 1.416 4th: 1.103 5th: 0.870 R: 3.000 FD: 4.266 YS1 Found in: Integra 92-93 XSI/RSI (DA6, DA9) Type: Cable 1st: 3.307 2nd: 2.105 3rd: 1.458 4th: 1.107 5th: 0.880 R: 3.000 FD: 4.400 S80 Found in: Integra Type R 98+ (LSD) Type: Hydraulic 1st: 3.230 2nd: 2.105 3rd: 1.458 4th: 1.034 5th: 0.787 R: 3.000 FD: 4.785 S80/Y80 Found in: JDM SiR-G (optional LSD) Type: Hydraulic 1st: 3.230 2nd: 1.900 3rd: 1.360 4th: 1.034 5th: 0.787 R: 3.000 FD: 4.400 Y21/Y80/S80/S4C Found in: JDM 96-97 Integra R(LSD) JDM Civic R [EK9](LSD) JDM Civic SiR [EK4, EG6] JDM CR-X DEL SOL SIR (EG2)(optional LSD) USDM DEL SOL VTEC (EG2)(OPTIONAL LSD) Type: Hydraulic 1st: 3.230 2nd: 2.105 3rd: 1.458 4th: 1.107 5th: 0.848 R: 3.000 FD: 4.400

Sounds like a slightly bent shift fork. The slider gear isn't quite engaging into 2nd. If the bend gets worse then you won't get into first and the pedal will get real stiff in those gears. The repair is best done in the shop.

Please rate this solution. Thanks!

Hi,

first square is the only one that is straight, all the others are at an angle..
1st - top four pins on left hand side
2nd - top row 3rd pin, 3rd row 2nd pin, 4th row 3rd pin (position 4) 2nd row 5th pin
3rd - 1st row 4th pin, 3rd row 1st pin, bottom row 2nd pin, 4th row last pin
4th - 1st row last pin, 2nd row 4th pin, 3rd row 4th pin, 2nd row last pin
5th - 2nd row 3rd pin, 3rd row last pin, bottom row last pin, 5th row 2nd pin
6th - 3rd row 3rd pin, 4th row 2nd pin, 5th row 4th pin, 4th row 3rd pin
7th - 4th row 1st pin, 5th row 1st pin, last row first pin, 5th row 2nd pin.

hope this makes sense!!

first square is the only one that is straight, all the others are at an angle..
1st - top four pins on left hand side
2nd - top row 3rd pin, 3rd row 2nd pin, 4th row 3rd pin (position 4) 2nd row 5th pin
3rd - 1st row 4th pin, 3rd row 1st pin, bottom row 2nd pin, 4th row last pin
4th - 1st row last pin, 2nd row 4th pin, 3rd row 4th pin, 2nd row last pin
5th - 2nd row 3rd pin, 3rd row last pin, bottom row last pin, 5th row 2nd pin
6th - 3rd row 3rd pin, 4th row 2nd pin, 5th row 4th pin, 4th row 3rd pin
7th - 4th row 1st pin, 5th row 1st pin, last row first pin, 5th row 2nd pin.

hope this makes sense!!

Here are some Gear Ratios for the current Yamahas...I ll try to add to this list for other years. FYI...the Primary Ratio is the crank to clutch and the secondary ratio is the sprockets. 2004-7 R1 Ratios Primary 1.512 Secondary 2.647 1st 2.533 2nd 2.063 3rd 1.762 4th 1.522 5th 1.364 6th 1.269 2006-7 R6 Primary 2.0731 Secondary 2.8125 1st 2.583 2nd 2 3rd 1.667 4th 1.444 5th 1.286 6th 1.15