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Back Issues
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Ask MX Tuner - Back Issues

OK - You asked for it! The entire enchilada! But don't say we didn't warn you. There are hours and hours of reading in here from several years of questions. From the silliest of question to some real stumpers! Grab your favorite beverage - wouldn't want you to die of thirst before you finish it all.


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Comments and Questions from our Readers
 Posted 2007-08-07 20:36:43.0
Hello, I have a 2001 CR125R and was wondering what the compression should be on it. I got a reading of 90 PSI cold and 98 when the engine was warm. I'm not sure what it should be, but that seems low to me. The bike still starts after 2 or 3 kicks max and seems to run pretty well. I don't know when the top end was re-built last because I haven't done it since I bought the bike about a year and a half ago. If 98PSI is too low, but it still runs fine, should I keep riding the bike or will this cause damage of any kind to the engine? Thanks
 Posted 2007-11-10 17:12:40.0
My bike is a honda 92 cr125 dirtbike. i replace the pressure plates, and clutch cable. Here is my question, when i fire my bike up and put first gear in, it is rough. i have tried taking as much slack off, and then some. ive used a washer to reduce even more slack, by the housing for the pressure plates (know where i mean? where the cable disappears into the void. Anyway, there is also that lever piece, i was told when i put the parts together im suposed to have it all the way down, is this ture? If your able to help or need me to describe my problem better. just hit me up. thanks, jeremy
 Posted 2008-04-20 17:17:08.0
I just bought a used KTM 125 SX. It is a 2005 model. I bought it in California but live in Colorado. Now that i have the bike here i need to jet it so i can ride up here. The problem is i don't know what size of jets to use. I live at about 7,000 ft. If you could help me figure out the size of jet i need i would apreciate it greatly. Thanks, Cole
 Posted 2008-04-22 10:32:01.0
we have a crank problem on 1996 RMX250. I would like to rebuild the crank. I have been working on dirtbikes for years. I definitely do not need to remove a bunch stuff that is not needed for removal. Is that a big job? Do yo have any reccomendations? Will a dealer need to be part of the picture?
 Posted 2008-05-30 21:42:40.0
Hi thier i recently was givin a little suzuki rm80. It wasnt running i managed to get it to run better, but now once i put it into gear and start going it wont rev up. It starts to go then dies what could i do to make it work thanks for your time.
 Posted 2008-12-11 02:08:12.0
hey i am about to get a 1992 kx 250 it was a full out race bike he sucked air and cracked the piston do i only have to replace he piston or did somthing else happen to i dont know if i can so please if anyone has any info please tell me
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