Hi; I would like to know what is so special about Perry Carburetors? I bought a K&B.61 engine the other day that has a Perry carb. on it. It looks like it is made out of black plastic and has a very short NV. I also have a K&B .61 with a K&B carb, its made out of alum. and has a nice long NV. So is the Perry better than a factory carb.? Veco

K&B's have a history of mismatched carbs.

The 40RC I had came with a .61 carb with a smaller barrel hole. The throttle response was poor and the midrange mixture was always too lean. Apparently some of the .61's came with carbs designed for smaller engines.

K&B has some good carbs and some bad ones and some were mismatched. But they have had enough bad ones that it seems to have become common practice to put a Perry carb on if the engine does not seem right.

Perry carbs are good carbs. They can be adjusted easier than some of the K&Bs. Also, if the Perry Pump is used, a a Perry carb may be required.

Another thing if a carb is damaged on an engine, it is usually significantly cheaper to get a perry carb. On my 25FSR, the OS carb is $57, the perry is $35. You can guess which carb I will replace it with.

To answer your question, my experience has been that the Perry is better than most of the stock carbs I've dealt with. On my hoverbatic profiles that is all I run. They have been around a long time starting with Perry, then Varsanne, and now Conley engines distrubuting them. Seems to me that engine manufacturers go through alot of time and pain to make a good engine and then drop the ball when it comes to fuel delivery. I've had excellent results with Perry and OS carbs when I wanted to make a swap. I use the telescoping K&S tubing to make adapters, and also use a Sherline lathe at times to fashion them out of aluminum. Bottom line, if you don't like what you're getting, feel free to experiment. Don't be afraid to go to a smaller venturi either. Those gazillioin rpm ads look good, but at times fall short in the "ease of operation" area. I hate to fiddle at the field. Keep it simple and have fun_bob

Hi; thanks for the feedback, one more question. Can a Perry carb. be adapted to use a remote NV? Jim

Jim:
Yes.

And you do it exactly the same way you adapt any other - plug the hole where the needle was originally fitted, and put the remote needle in line.

Bill.

Btw, if you can't find a way to plug the hole where the old needle is, you can just leave it there and just set it to as rich of a setting as you can get with out leaking air. Then use the new remote needle for your actual settings.

A lot of combat guys do this in SSC class to their Magnum engines, using an OS remote arrangement because the OS needles have a much finer adjustment than the stock Magnum needle, but the rules for SSC don't allow direct engine modification, but do allow non-stock fuel arragements like bladders and extra needle valves inline.

I guess this thread might be dead looking at the dates but have any of you used a Perry carb on a set up hat wasn't woking with a perry pum and standard carb?

I think I might need to do this on an MVVS 160 that I cant get to run ight with the pump fitted to cope wih a CoG mounted tank.

Cheers.

sj.

Simon:

I just posted a reply to your Idle Mixture" thread.

Bill.