
Everything posted by Airhead
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Help DT 125 LC Mk2
?? ask your yamaha dealer
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HELP! Yamaha DT125R seems to be a tad slow.
57/16 is right, perhaps you are experiencing clutch slip? can you see the revs change when you give it a handfull of throttle in high gears with no apparent change in speed?
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an old hate, im sure, but... YBR gear changes
yes and you will notice he wasnt blipping the throttle...he was rolling it off
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an old hate, im sure, but... YBR gear changes
not impressed at all with that, all i ever saw him do was LIFT the lever (upshift), did you actually see him press down at any time (downshift) like i said, for downshift...blip the throttle (do not do this going from neutral to 1st though with bike stationary) for upshift...close the throttle easy
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an old hate, im sure, but... YBR gear changes
i have such a poor internet speed that video will take a while to buffer,
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an old hate, im sure, but... YBR gear changes
no wonder you are having trouble, that guide is for DOWNSHIFTING, as i said in my last comment, for UPSHIFTING you need to close the throttle while the lever is lifted to the next 'higher' gear!
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an old hate, im sure, but... YBR gear changes
shifting from 1st to 2nd is rarely a problem...usually it's the other way round that causes issues, I take it that when you are upshifting you do back off the throttle when you pull the clutch? When downshifting give the throttle a little 'blip' as you are pressing the shifter
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1970 DT1-E 250 frame, what size motor?
no idea Adam but why not sort out the original one?
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an old hate, im sure, but... YBR gear changes
If its 2 months old and you are so near a dealer then why not get it checked out under warranty, you'll be out of warranty soon enough!
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hey there bikers!
Greetings Grover, nice to see you're enjoying it so much
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'78 Suzuki TS250C project
may do in the short term to get you going, paint the spokes and use jenolite on the rims to remove the rust?, perhaps a re-chrome next winter?
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Happy Birthday Mervin
Happy birthday merv, have a good one mate
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DT125R Engine Air noise
I just explained that Andy
- 2 Stroke gathering & YOC camping weekend 2012
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Hi, looking for a DT125RE
Greetings Andy, yeah the DTR/DTRE are great little bikes but be choosy about what you buy
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Looking for Vintage Yamaha crossbar pad
all i can say is keep an eye out on ebay Jerry, you should be in with a good chance in the states or if one is hard to find, perhaps something newer? http://www.google.co.uk/imgres?q=yamaha+bar+pad&um=1&hl=en&sa=N&qscrl=1&nord=1&rlz=1T4GGLL_enGB401GB402&biw=1024&bih=516&tbm=isch&tbnid=cvC7kGbeoD8OgM:&imgrefurl=http://www.becktonsmotox.co.uk/Renthal-Motocross-Bar-Pad-10-inch/254mm-Yellow/10.htm&docid=s6U7tJMlTU5XeM&imgurl=http://www.becktonsmotox.co.uk/photos/1.329342suzukisupercrossbarpadyellow.jpg&w=300&h=300&ei=0UjFT6WZDtSo8QPr8JW7Cg&zoom=1&iact=hc&vpx=752&vpy=79&dur=6859&hovh=225&hovw=225&tx=139&ty=118&sig=101395255537641240546&page=5&tbnh=143&tbnw=143&start=51&ndsp=14&ved=1t:429,r:4,s:51,i:197
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I got the bug...
Greetings Jerry and Great photos and happy memories eh? I see they are two different models, the yellow one being earlier
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DT125R Engine Air noise
Just listened again, ok i have another theory Because you are turning the engine very slowly, the compressed gas above the piston is leaking away as cynic said, you can hear that much but its the other noise you are concerned about isnt it? unlike when the engine is running and because the compressed gas leaked away...you are in fact causing a vacuum above the piston on the downstroke, when the piston uncovers the transfer ports air will rush in to this vacuum and at this point you will feel the kickstart lurch as it suddenly has an easy time, the noise is the air being sucked up the transfers
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DT125R Engine Air noise
about the noise Andy...was the carb and exhaust on then? Cant say I was concerned about anything I heard in the video, engines make all sorts of noises when stuff is unbolted like that!
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electronic ignition
you can check the resistance of both the ignition coil and the magneto source coil, I expect the figures would be in the manual
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How to section???
yes thats alex mate
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DT125R Engine Air noise
its the sound of air being forced back out of the inlet tract, normally there would be reeds in there and the motor would be turning much faster...so seating the reeds and no blowback
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Cylinder heads and squish bands
any race bike or high peformance engine, from all manufacturers would be devoid of this groove, the only bike i saw it on was a later model DTR, not sure about the DTRE but the numbers on the casting will tell the tale
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Cylinder heads and squish bands
the squish band is the band around the combustion area that has a very small gap between the piston and the cylinder head...when the piston is at TDC, some of them have this convoluted groove in them (i know not why) the best one to go for is the one without this groove IMO
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How to section???
you can have one kev but it'll cost ya, see the top of the screen thre's a 'subscriptions' button. All the flag wavers have pressed this ere button!