Have questions about a sound your bike is making? Wondering about jetting specs? Post your questions here. This forum moderated by Al Posey from Posey Racing. PLEASE, since this is an expert forum, only post a response to your OWN topic
Ask our Experts any questions regarding their specialty. Please only respond to your own forum. Even if you feel that you can help another reader,...
Just wondering how much difference a 15-40 oil is to a 20-50? I have a 2012 RMZ250 and have some people are running 20-50 on these bikes to have more...
Al picked up an 09 kx250f been riding it fora while now its starting to pop a little when riding not sure if its because starting to get hot or?? not...
hey al, i was just curious if they was any alternatives to mixing race and pump gas in my 08 yz250 to keep it from detonating. The most common is...
What is a good alternative to the stock 2010 YZF250 Ignition System? Should you use a programable Ignition like a Willamsmotoworks or MSD? ...
How do I check the level on the crankcase,or is it the tranny? My old cr had a screw you removed&filled till it seeped out.i just got this yz&i I...
Al, ive had a little bit of starting issue with my 2009 kx250f recently rebuilt the entire top end along with every little part up there. fired up...
Im very interested in getting a Leo Vince exhaust for my 2012 crf250r. Do you know if they work well with hondas? or in general what you have heard...
my sons yz 85 has been sitting around for 6 months. it wont start, but bogs for a few seconds then shuts off. Now i dont know how many friction...
Hello Mr. Posey! May I please have the 411 on cutting valve seats? Why can't it be done just as accurately on an end mill? Don't you just cut a a...
I can not find anyone who makes a oversized tank for my 2010 rmz 250. Ims makes one for the 450. Does anyone know if that will fit? Will I have to...
I am having some problems with my 2005 CRF250. I recently had a valve adjustment done before I moved out here and for my first three rides out here,...
We were out at the track and my kid came in saying it sounded like the chain was lose. Chain looked fine but put him on our other bike. Came home...
I have a fairly new 2011 KX450f. I noticed that there was a small amount oil on my skid plate, and upon investigating a little, i noticed that there...
I have an 04 rm and i also have some older forks from a 98 rm laying around from a buddies bike. I was wondering if with proper valving the...
so i just recently bought a 2009 kx250f for a way lower price than they usually go for, needed a new top end and some carb work. i did the top end...
I bought this bike used and the motor blew about a month later,i assumed it just hadnt been taken care of by the previous owner. We got a wysco motor...
Time to freshen up the head again. 2005 CRF 450R. Need recommendations on where to go in SF Bay Area to have valve seats 3-angle cut with "Serdi"...
Maybe I'm wrong, but I view motor builders as part scientist and part artist. It got me thinking, what would Al Posey build if there were no...
I am at sea level and my bike is having bogging issues and i cant find anywhere online for what my main and leak jets need to be. i have a Full FMF...
hey al, you wouldent happen to have any big bore kits sitting around colecting dust for a 04 yz125 ? building the kid a play bike ,seems like the...
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