The gears are not changing to the right gear but i tried to change the gears to see if it will change back where it should be but it didnt. on my handle bars gears dile is saying 3 and 7 but the gears are on 3 and 5 or 4 what should i do

Can you tell me what it is doing when you try and change gears ?? Are the guides moving ? is the cable not moving right? Give me a little bit more detail please. I think It might be a simple fix.
are both front changers not working ( Front and back ) ?

U disconnectd somethin on motor or not tite or greasy. U didnt git gears n othrparts back tgethr rite. Bottom end work is touchy..need rite tools..u gutta clymer shop manual

redo assembly for clutch as the gears on put back right.

When you say "change the fluid" you are talking about the transmission oil? When you did this what colour was it? If it was dark brown or black and had a burnt smell that is the surest sign that your transmission is cooked. If this is the case you actually finished the job by changing the fluid as the particles of clutch plate and metal particles from the gears were what was giving the transmission the friction to allow it to shift. By removing the particles and adding fresh lubricant, the transmission now slips. Which is why it won't stay in gear or change gears. You are going to need to have the transmission rebuilt, or depending on the damage to the gears possibly replaced. Given the age of the vehicle and the cost of the repair you will have to decide if you want to spend the money to fix it.

The bike has a bent shift fork in the transmission. You describe the classic symptoms. The engine will have to come out of the frame. Then it gets flipped upside down, right and left side covers, shift shaft, and other components are removed, then the bottom half of the gearbox is removed. This allows access to the shift drum and shift forks. There are some special tools needed and I don't recommend a novice mechanic tackles the job. Below is a diagram of how the shift drum moves the shift forks left and right to make a slider gear engage different gears. Please rate my answer. Thanks.

Have your mechanic check the linkage to see if it loose and needs to be readjusted. Sounds to me like it's out of adjustment.

possible clutch cable or cluth itself, check the clutch cable first to see if its stretched, i didnt check and put a new clutch in ,and wasted £250 , try euro car parts for cheapest clutch cable.

NEW as in BRAND NEW?? im assuming you installed it already and remembered to BOLT UP THE TORQUE CONVERTER, FILLED THE TRANNY WITH THE RIGHT KIND OF ATF AND RIGHT AMOUNT. i would recheck all the electrical plugs for corrosion and make sure u didnt leave any GROUND WIRES OFF/LOOSE. also make sure that the tranny u bought is the exact same MODEL TRANNY AS THE OLD ONE.(numbers/letters match) there could be more than one possible trans.for your car. also there is a possibility that the PCM(computer) needs to be FLASHED/REPROGRAMMED. Have u ever replaced a tranny before??

have not found the problem yet ---still looking --thanks

havent heard of a shift pack to rectify this problem ,just buy a decent car like a ford or a jaguar.these cars do drive like a bag of nails and never worked on one yet that didnt have this problem with the gearchange