Any one who has followed my Beta posts for a few years knows that I am a huge fan of the Moto Tassinari VForce carbon reeds. Much to my chagrin Moto Tassinari discontinued the V351C reeds for the Beta and Sherco. I’ve heard various reasons from reed life to breaking cages and I did have a cage failure some years ago leading to a long push out of the woods.
But here’s the thing, the Beta runs soooo good with the VForce reeds that I wanted a set very badly for the new bike. I contacted Moto Tassinari and asked about a set for the new bike and one of their guys said they can build up some for me. Then I never heard back. OK fair enough. He was probably shot down by his bosses. So routing around for an alternative I scoured the website for similar reeds. If you dig deep enough you find the KTM 85SX from a few years back had a reed cage that looks exactly like the standard Beta reed cage, as in Beta buys them from the same manufacturer similar. Hmmm I thought, Moto Tassinari makes a reed for the older KTM 85SX that has almost the same part number as the Beta/Sherco reed V351B. So I bought one.
The reed is an exact bolt in and the only difference is the reed petals are 3P412H vs 3P412M (hard vs medium). I had a set of replacement reeds for the previous bike so I disassembled the reed block and replaced the hard reeds with the mediums. The other difference is the original V351C was originally designed for the 26mm Mikuni so there was a lip with the Keihin. With the V351B block there is a slight lip on top and bottom however the opening to the block is a large rectangle so there is in reality much more area. The OEM KTM intake boot (KTM used a Keihin PWK28) looks to be a direct bolt on but I’m not certain until I get one to try.
One other thing to note is the reed cage material now seems to be a heavier plastic. Almost like a fiber reinforced plastic. This makes it harder to take apart and snap together and the older 3P412M reeds didn’t fit as well needing a little nudge to get them onto the tabs that hold them. The other thing that was odd was the inner reeds are held in place with a pin that seats them onto their tabs and the reed block I got the pin seems to have been assembled backwards. I plan to talk to Moto Tassinari about that.
So how does the new bike run? This weekend was my first time out with the low compression head, carb jetting tweak and VForce reeds. Previously I had two days out on the new bike in stock trim and was stalling all over the place. Yesterday the Beta pulled off idle like a freight train. Power builds smoothly to a respectable top end though it gives a little away on the top due to the low compression head. Fine with me, I don’t spend a lot (any) time at full throttle.
Am I happy? Oh Yeah!