ASK THE MXPERTS: (02/26/10)

Dear MXA, I don?t know whether the bike I just bought has DOT 3, DOT 4 or DOT 5 brake fluid in it. I don?t want to add the wrong kind of fluid. Are they different colors? Yes. Since…
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ASK THE MXPERTS: (02/23/10)

Dear MXA, My Son and I have YZ250s. I have a 2004 and he has a 2003. We both weigh 190 pounds. What are the best fork and shock settings for those years? Here are some quick tips for that era YZ250.…
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MXA PRODUCT TEST: EVS SPORTS UG06 RIDING SHORTS:

MXA PRODUCT TEST: EVS SPORTS UG06 RIDING SHORTS WHAT IS IT? A motocross riding short with integrated padding in key areas for added protection in the event of a crash. WHAT'S IT COST? $55. CONTACT? www.evs-sports.com or (888) 873-8423. WHAT…
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MXA PRODUCT TEST: GYTR YAMAHA YZ450F EXHAUST:

WHAT IS IT? It's a full exhaust system for the fuel-injected 2010 Yamaha YZ450F from Yamaha's in-house accessory division. WHAT'S IT COST? $699.95 (stainless/aluminum). CONTACT? Your local Yamaha dealer. WHAT'S IT DO? In stock trim, the…
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ASK THE MXPERTS: (02/13/10)

Dear MXA, Do you have any experience with ceramic bearings? Are they worth the money? Does anyone run them? A ceramic bearing ball is two-thirds the weight of a steel ball. The surface of the ceramic…
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ASK THE MXPERTS: (02/12/10)

Dear MXA, I have a 2005 RM-Z250 with a bad engine. Can I install a 125 or 250 two-stroke engine in it? Yes you can, but unless you are a skilled machinist and welder we think you should think twice.…
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ASK THE MXPERTS: (02/11/10)

Two-wheel-drive Rokon. Dear MXA, Why doesn?t Honda make a twin-cylinder, two-wheel-drive motocross bike and blow every one away. Why do the manufacturers shy away from the most obvious technology? There…
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ASK THE MXPERTS: (02/09/10)

Dear MXA, Everyone says that MXA is the only place that can help me. What are the best setup tips for a 2005 Kawasaki KX125? Here are MXA 's tips for the 2005 KX125. Gearing: Drop…
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ASK THE MXPERTS: (02/06/10)

2006 Yamaha YZ250. 2009 Yamaha YZ250. Dear MXA, In MXA you said that 2007 YZ250 is as far back as you'd go on a used YZ250 because it's the first with the Kayaba SSS suspension, but in the March 2009 issue of MXA you…
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MXA PRODUCT TEST: SHOCK DOCTOR HELMET EJECT:

MXA PRODUCT TEST: SHOCK DOCTOR HELMET EJECT WHAT IS IT? It's an inflatable device that limits neck and spine damage during emergency removal of a rider's helmet. WHAT'S IT COST? $59.99 (Helmet Eject), $24.99 (CO2 inflator), $79.99 (Helmet…
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ASK THE MXPERTS: (02/04/10)

Dear MXA, I have been watching the flurry of Youthstream press release stuff that has come out since the ?The Story That Giuseppe Luongo Doesn?t Want You To Read? was printed in the February issue of MXA. The internet is…
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ASK THE MXPERTS: (02/03/10)

Dear MXA, Can I swap my 2007 YZ450F titanium shock spring to the 2010 YZ450F? I presume the 2010 doesn't have a titanium spring. No, you can't. Originally, when we asked Yamaha if this was possible,…
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ASK THE MXPERTS: (01/21/10)

Dear MXA, I seem to have clutch issues with my 2008 YZ450F. I don?t think I?m abusing it. I change the oil at regular intervals with 100 percent synthetic oil. What is the fix? In our opinion, we don?t…
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ASK THE MXPERTS: (01/19/10)

Dear MXA, Should I reassemble my piston and cylinder dry to seat the rings better or is this a myth? It is not a myth, it is downright stupid. Of course you need to lubricate your piston and rings.…
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ASK THE MXPERTS: (01/14/10)

Dear MXA, On TV I noticed that the AMA Pro riders ignore the yellow flag. I?ve seen every star blow by other riders when the yellow flag is out. I thought it was against the rules to pass another rider when the yellow…
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ASK THE MXPERTS: (01/04/10)

Dear MXA, I just got the February 2010 issue of MXA . It has the 2010 450 Shootout and a recap of the 250 Shootout, but neither test includes a Suzuki. Why? I remember that Suzuki wouldn't give bikes to MXA a couple of…
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ASK THE MXPERTS: (12/31/09)

The two-stroke. Dear MXA, I read somewhere that 250cc two-strokes were going to be allowed to race the 2010 AMA 250 Nationals (against the 250 four-strokes). Is this true? No. Although there are a lot of people who would…
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