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Showing results for tags '4T'.
My engine has developed a whirring gear whine sound that is progressively getting louder. It's a 2019 RR390 Standard (w/Racing graphics) with 6000kms, 145hrs, on mostly country roads and some single track. Oil changes, engine and gearbox every 1000kms. Steel oil pump gears and high flow water pump impeller installed at 5000kms, 110hrs. Have any of you heard a sound like this before and have an idea what it might be? The sound is most apparent beginning about 7 seconds into the video that I just posted on the "Beta Motorcycle Group" Facebook group. (I've not yet learned how I can link you to the FB page or post the video.)
I bought this bike last year to do the KAT. Bike was used with about 100 miles on it. About 300 miles into the KAT it started making a high pitched noise when revved. bike now has about 1000 miles on it and the noise has got progressively worse. I brought the bike into a local Beta trials dealer who also happens to own a 430RR. He is as stumped as I am by the noise. We have adjusted the valves which one was very slightly out of spec, Checked the clutch and primary drive, replaced the oil gear with metal. We reset the cam chain tensioner and it seems to be fine but nothing so far has made a difference. We used a stephoscope to try and pinpoint the noise but it is very difficult to focus as the noise radiates through everything. The bike sounded normal before this noise started and is running fine, no loss of power and it starts easily. Fluids were all clean with no signs of anything. I have attached a video that has good audio as a dropbox link in the hope that maybe someone has had a similar issue and could point us in the right direction before we tear into this thing. Its a 19.2 MB file. Any input would be appreciated! Thanks in advance. I have also posted this on advrider so my apologies if it is redundant for some. https://www.dropbox.com/s/m2jj7pup3hcqivq/2020-02-10 16.45.01.mov?dl=0
Hello everyone, So I ride trails on a terrain with no hills or anything like that in my area everything is straight just a lot of forests so Im wondering should I get YZ 125 or a RMZ 250 I need something that wont blow up because im 16 and dont have a lot of money something reliable but fun
Hello dear forum , I'm back with some questions ... Could i found a low maintenance dirt bike (400/450 4T OR 250 2T) ? I'm going to ride fields and much like trail riding but I want a low maintenance schedule..... Is that possible ? Possibly Enduro ? Thanks in advance @_@