Ok, so back in 2013 I had my 2008 Iron Barrel modified with the Ace Fireball performance package.The full Monty! Tom got the headwork done for me, Chumma worked over the bottom end, I put it all back together. All was well until the timing went way advanced resulting in me needing the barrel to be re honed and new rings and piston. (my bad) Once it was all back together the bike started burning oil and fouling plugs. no matter what I did I couldn't get it to stop fouling plugs. This is when Chumma offered to go over the bike for me and iron things out. So I sent him the bike. While he had it though, he mentioned a new way he was truing the cranks. I gave him the Go and,am glad I did. The crank is now trued to .001" resulting in this thing being the smoothest single I've ever ridden. He also said they started doing an upgrade on builds where he mills the timing side case to accommodate a larger, more robust bearing. The stock bearing on the timing side is a 205, the drive side has a 305. As the motor runs there is considerable crank flex. The bearings take all the lateral load. The 205 is a hair undersized and is prone to failure on these bikes. They use a very high quality 205 bearing in their builds. Still, the only fireball which has had an engine mishap was a spun 205 bearing which happened after 35k miles. The new bearing Chumma has been using is a 2205 which is deeper and rated at 34KN of load strength. The 305 is rated at 37.5KN, and the original 205 comes in at 27KN. The 2205 is a better match to offset the crank load under flex. So this upgrade went into my build as well. Now, its time to tackle that fouling issue. Im sure Chumma thought this issue was going to be easy peasy. But much to our chagrin, the engine kept fouling plugs. It wasnt until after pulling the bike apart a few times and alot of persistence did Chumma trace the problem to the head even though all looked well there. Well,after stripping the head, and with the help of Aniket Vardhan( yes, Chumma had recruted the help of Aniket by this time. Did I mention these guys are terrific!) I'm not sure how they even saw it but, they noticed several tiny pinholes had worn thru the ceiling of the intake port right into where the intake valve spring seats. the metal there was only paper thin! Oil was being sucked into the combustion chamber via the rocker & valve spring area. Once Chumma repaired this area the bike went back together nicely. I,ve had it back for about a week now and I'm really impressed. It starts on the first kick. Every time. unless I chump it! (like leaving the kill switch on). when I twist the throttle,it has a honking snarl that is rather melodic! Man,It pulls like a freight train.The power that comes on after 4k rpm is surprising I have to watch it though, because before I know it, I'm going way faster, way faster! Awesome! So if anyone wants to know. Yes you can get a Bitchen Ride from an Indian made, britsh designed, antiquated, Iron barrel Bullet! Ace Engineering is the place to make it happen.Just askfor Chumma. tell him I sent you! Ive included a Youtube link if you want to see and hear what Im talking about.The sound quality is not too hot but, you will get the idea.
https://www.youtube.com/watch?v=JdEaTW6qe18
Topic: The returne of the Chicagoland Fireball (Read 4398 times)