I picked interest on you after going through your short profile and demand it necessary to write you immediately. I have something very vital to disclose to you, but I found it difficult to express myself here, since it's a public site.Could you please get back to me on (email@example.com) for the full details.
I haven't decided anything yet.
I do like the new features of the 2015 engine but I don't know when it will be able to be bought or run yet, who does eh!
I'll keep you in mind if that's the way I'm going.
You could let Greg Kee know that I put a new engine in his old kart at the beginning of last season, and then wrote it off by hitting the Armco on Eastern Loop at Lakeside in December (I needed to replace my helmet too, but otherwise walked away with just some bruising). That kart had had a 'good life'. Just last Friday a fellow karter went off to hospital with the lights flashing from a crash at the same place in practice; and on Saturday, I guy in an Alfa hit the Armco and died!). Not to be deterred, I now have a brand new Arrow AX2 (which has about zero compatibility with the AX8 chassis - hence my selling all the old parts, spares, etc.) and intend to keep it on the track ......
My email address is firstname.lastname@example.org. My son Michael had his first run (retricted heavy) in 8 years last July at Ipswich (won) & we have a new Rotax engine but I certainly feel for the many thousands nationwide that may be affected.
Its my understanding that all our cranks have been hard chromed. Around 50% of the time I do the bottom end myself and have Baron Engines rebuild / hard chrome cranks. I have no reason to question their integrity. Latest blow up was of a crank / bottom end not built by myself or Baron. A very close look at many Yamaha crank halfs show poor blending of the radius between the crank and journal. This seems to be made worse by the chroming process where a minor step is introduced around the journal section of the radius. The fracture in the crank always starts at the "top" of the journal - with the piston at TDC. I beleive this is caused by the low compression ratio we are forced to live with re the 11cc combustion chamber volume. The relatively low compression does not provide enough damping of the piston as it approaches TDC that is needed to lower the mechanical loads on the piston / rod / crank assembly. Closing up the crank halfs can help a tad but that is also restricted by the regs. Such are the joys of karting!