Post by drc on Jan 19, 2021 20:05:12 GMT 1
My brother bought a RZ350 in boxes last summer and we have been working at it during the lockdown. I’ll get some pictures the next time I’m over and post them up.
It came with a set of Athena cylinders and a +4 Hotrods Crank so should be 421cc. It also came with a set of pipes that were made by Shearer. I have not seen any of his stuff on a street bike although I think he is supposed to make good pipes for Banshees but I don’t know.
He had it Powder Coated and its almost back together.
There were originally a set of PWK33’s on the bike and the seller kept them, but it did come with 2 sets of Mikuni carbs and a billet manifold. The carbs are VM32's and VM34’s. He didn’t want to spend any more money on it at the moment so wants to use a set of those with foam filters. The bike is running pre-mix. It looks like the carbs have standard jetting as the 32’s have 200 mains with a Q-6 needle Jet and a 6DP17 needle and the 34’s have 260 mains with a Q-2 needle jet and a 6DH04 needle.
I know this is a really tough question without knowing a lot about the motor or the pipes, but what would be the better carbs for a 421, the 32’s or 34’s? Also, what would be a good safe starting point for the jetting. Both seem like they may be a little lean.
Any insights or experience you have would be much appreciated as I really have no idea where to start.
Thanks
, Brian
It came with a set of Athena cylinders and a +4 Hotrods Crank so should be 421cc. It also came with a set of pipes that were made by Shearer. I have not seen any of his stuff on a street bike although I think he is supposed to make good pipes for Banshees but I don’t know.
He had it Powder Coated and its almost back together.
There were originally a set of PWK33’s on the bike and the seller kept them, but it did come with 2 sets of Mikuni carbs and a billet manifold. The carbs are VM32's and VM34’s. He didn’t want to spend any more money on it at the moment so wants to use a set of those with foam filters. The bike is running pre-mix. It looks like the carbs have standard jetting as the 32’s have 200 mains with a Q-6 needle Jet and a 6DP17 needle and the 34’s have 260 mains with a Q-2 needle jet and a 6DH04 needle.
I know this is a really tough question without knowing a lot about the motor or the pipes, but what would be the better carbs for a 421, the 32’s or 34’s? Also, what would be a good safe starting point for the jetting. Both seem like they may be a little lean.
Any insights or experience you have would be much appreciated as I really have no idea where to start.
Thanks
, Brian
