I have a zma, been owning it for 3 years now and it has some kinda of weird problem. I dont exactly know where the problem is from..
Basically, this is the description, somewhere about a year back, my bike wasn't able to go above 60kmph..i dont know why.. when i put the bike to neutral and revved the engine, it went smoothly till the end around 8-9 somewhere.. but when i put the gear and tried to ride as usual, the bike powered on till 4k rpm and then suddenly from there on, it never went up.. it was almost like 4k rpm was the higher end of my bikes capacity, after about riding for a min, it finally touched 5k rpm.. and at times this problem gets solved on its own.. ie it goes normally till 8k rpm ..i dont race with my bike, i dont do stunt, i dont drag, but i do go on long rides often.. i gave the bike of service and mentioned this problem and they said, there wasn't a problem .. probably a air bubble in the carburetor.. but after this prob i've seen a major decrease in my milage and pickup. even today a p150 can beat my bike in pickup and my bike tops off at 120 now..much opposed to 130 before this problem came.. the bike is in stock condition .. done 28k kms now.. no parts changed.. i think the problem may be with either my gear box or the engine piston .. not sure of both though .. experts .. pls suggest me on wot to do ???





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