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triplehelix

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    Yamaha YZF R-125

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  1. Hi, I bought a brand new 11 plate Yamaha YZFR-125 (2010 model I think) on March 1st, lovely bike, had no trouble with it, until around 3 weeks ago I reckon, when it began "burbling" in 1st gear, it didnt stall, but the engine didnt sound like it was doing many rpm, yet my idle rpm said 1.5k, it sounded clunkier. Well I rode it Saturday 21st, Sunday 22nd washed it, started it up, it was below the 1.5k rpm, got up to it, and then went down and stalled. I tried again, got it fired up and stayed at 1.5k. Turned it off. Monday 23rd it doesnt start, the ignition is making the grgrgrgrgrgrgrgrgrgr noise but it just wont open the engine and get it going, the one time it did it sounded CLUNKY and painful (for the bike!) and cut out. I got an experienced motorbike owner to try it out, he opened up the throttle and tried, same game. I just tried today again and its worked, and it appears to be holding the 1.5k, but it is clunky sounding at times. This surely isnt normal for essentially a BRAND new motorbike. Wearing in: Never go over 6k revs, I did VERY little above 6k, sometimes when I was concentrating on the road more I went to 6.5k, maybe skimmed 7 for a milisecond, but 99.5% of the first 600 miles was under 6k revs. I dropped the bugger in March, real annoying I know, but the fairing is cracked, not scratched, it was reported to the yammy dealer so they knew it happened in March. I have extremely rarely ran it in the red tachometer zone, once or twice I dont quite succeed in hitching it to 6th gear (tis only a 125, gotta be quick or the powers gone! lol) and shaved into the 10k-10.5k region where I assumed It was in 6th and opened the throttle all the way. Overall my riding is I would say from looking at other 125 bikers, quite nice, I do have my fun days where I accelerate fast, but I never usually get anywhere near the red revs, only time I do is on dual carriagways and need to go 60mph-70mph, but usuall its gears 5-6 for that which is 9-10k revs max. I would say I treat it well, not as perfect as other bikers could, but its not bad going. I wash it by getting buckets of water and (slowly) dropping it over the bike, I then spray on muc off (diluted) and wash it all down with a mit and bucket refills and gradually rinse it all away. From my knowldege motorbikes should be almost entirely waterproof, otherwise its a bit silly to have the engine cut off during the rain!!! I am taking it back to dealership regardless even now it works incase its a fluke and I do more damage keep riding it while somethings wrong with it, but has anyone ever witness this before? Also will dropping the bike invalidate my warranty? The fairing damage is obviously a drop, not a slide, because its cracked, not scratched, and its been working impeccably for 1-1.5 months after the drop. But you know what professional companies are like, theyll try and save money anywhere, TBH I am begrudging the idea a 2.5 month old motorbike needs any kind of high-key maintence, understandably oils, coolants etc, I've been keeping on top of that, but no way should any decently constructed vehicle begin being temperamental at startup when only this old, the weathers warm too! I always ensure the engines warm before running it too!
  2. Hi guys, 1st March got a brand new Yamaha YZF-R125, and love it, I wore the engine in properly, went over 6k revs sometimes by accident (more concerned with the road than my revs!) but I am sure it never went much over 6.5k for any longer than a second or two, I doubt it is THAT precise. Anyway, where I live the road camber is a bit of a bitch, and some mornings I dont give it enough juice, it stalls, fair enough, but when I push the starter again it just keeps going grgrgrgrgrgrgr and never turns on, and if it does it sounds slow and clunky, whereas if I switch it off, wait a few secs, and turn back on, its fine. Is this normal? Also, I know its only a 125, but at around 6,000 revs its noise is different, it sounds louder and kind of horrible, almost 2 stroke moped like but not as bad, but after 6500-7000 revs it goes back to normal. Ive been told this is simply where I kept the revs at 6000 too long when wearing the engine in, as youre supposed to "mix the revs up" but on a 125 6k revs gets you 48mph max in 6th gear, and it gets you 42mph in 5th gear at 6k revs. Its not very realistic for me to be jumping from gears 5-6 in traffic, especially when its still gonna be 6k revs, if I had to go to 5k etc id be pissing a lot of people off. Another person simply said the gear has stretched. Its not a nasty nasty noise, doesnt sound worrying, its just a nuisance, and it doesnt always do it, sometimes its worse than others. I notice it is usually worse on my "fun days" where I really rev into gears 1 and 2, and its usually in gear 3 it happens, at 30mph (6k revs) it just sounds really tinny and mopeddy (nowhere near as loud or horrible, but analogous sounding) Should I take it to dealership? I got the 600 mile service and it helped the noise, the next one isnt til 3600, and ive got 1900 on it at the moment, bite the bullet and get an early one just incase? PS. Dont worry I ensure the engine is warm before doing any high revs in low gears on my "fun riding days" and I rarely hit above 8-9k on the low gears anyway, usually hitch up at 7-8k. The revometer (lol) red zones at 10k so this shouldnt be an issue right? Cheers, and loving every day of motorcycling!
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