YAMAHA DT 125 E SWISS
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@DylanDT219 Make sure the inlet and exhaust tracts are free from restrictions. Ensure the linked above derestrictions are in place and make sure the engine is healthy.
Is the bike using stock gearing?
@Calum maybe you still have not understood the sport exhaust and it is no longer original I have mounted ujna firebox athena in addition to this on the site we wrote that inlet before 1991 there are no restrictions and then I do not know if the gearbox is original since I have never opened the engine and then I do not think that there are modified changes for the dtr
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By restrictions mate, I mean blockages. Like is there leaves and dirt in the inlet tract. As well as exhaust. So yes it may be an aftermarket exhaust, but if it's blocked then that will cause poor performance.
And by stock gearing, I mean the front and rear sprockets.
Sorry for the confusion.
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‘Lost in translation’ springs to mind...
How long has your bike been stuck at 80kph? (60 mph is slow and wrong)
Was it faster before? Has it always been so since tha 170 Athena kit? Did it come as a 170? More history is needed...Hazelnut brown is too dark, no?. Should be ‘tan’ ideally?? Been a while since I’ve had my last stroke (2)
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By restrictions mate, I mean blockages. Like is there leaves and dirt in the inlet tract. As well as exhaust. So yes it may be an aftermarket exhaust, but if it's blocked then that will cause poor performance.
And by stock gearing, I mean the front and rear sprockets.
Sorry for the confusion.
@Calum
ahhh okay anyway stock gearing for dirt don't worry i checked and it's all clean -
‘Lost in translation’ springs to mind...
How long has your bike been stuck at 80kph? (60 mph is slow and wrong)
Was it faster before? Has it always been so since tha 170 Athena kit? Did it come as a 170? More history is needed...Hazelnut brown is too dark, no?. Should be ‘tan’ ideally?? Been a while since I’ve had my last stroke (2)
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@SpookDog my bike has always been blocked both with the original cylinder and with the 170cc it has always done less than 80 km / h. the 170cc arrived new from a german site with everything you need i still have the box ...
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If it’s the same with two different cylinders and exhausts it is obviously something else. Either the carb or ignition.
What does it max out at on revs?
Does it rev up smoothly?@SpookDog you rev up without problems, before I turned the YPVS by 180 ° it reached a maximum of 8 thousand rpm, but anyway this is the problem here someone has to tell me if they know any mechanical block so inside or outside the engine and electronically
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@Darty che interruttore?
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me after making that post