lol....Sounds good. Hey Roy, let me know how you like the engine.

Pulled the trigger on a new B5 tonight and it should be here Friday! I spent a few hours researching the RB Killer 9 / OFNA JL and it has a ton of initial pinch and needs ~2 gallons before beginning to open up (ala my GO). I'm leary of heading down that road again.

I was very happy with my Sirio and feel I'll be getting an even better engine with top-notch support.

That's why I like jammin and werks. I get a ton of support for my stupidity.

Ron, does the new carb use the same inserts as the old one??? I broke-in one last night for my buddy, but didn't check the inserts The new carb seem to be more tuner friendly than the older version to me. The old carb was good, but this one is better This little mill is awesome.... Ron you got a winner with this engine

The new carb venturis ar NOT interchangeable with the old carb.

What inserts fit??

Nothing yet that I am aware of...but Im sure something is coming

Horizon has them on the site... they are due out this month. This carb is the same as the one that comes on the "MTE" ABI CRF and the new ABI CRF Alpha engines that are also due out this month

Why is the new carb aluminum? I may be wrong but from what I have read and dealt with the aluminum carb body heats up a lot more and can boil the fuel which can cause hard starting. Had a lof of issue like this with my B3, changed the carb to a composite material and it worked a lot better. Doesn’t the composite material transfer the heat out of the carb better?

yeah ,i was thinking the same thing. my old werks/collari..30 carb was terrible

Lol, yeah even I have to admit that the .30 Collari carb was the pits! New ones are completely different though. The old Collari alloy carbs were cast. The new ones are machined from billet and then bead blasted to give a rough coat (this increases surface area and improves in cooling). They also have a better heat insulation sleeve installed around the carb base where it fits into the block. So in essence the carb is completely isolated from any heat that the engine might generate. In a nutshell for those that might be more familiar with OS engines it's quite similar to the carb set up on the V-Spec and Speed.

As far as the reducers are concerned on the new carb they are different than the ones from the composite carb. I just received samples of different sizes a few weeks ago for testing and have been playing around with ones from 5.5mm to 9mm in .5mm increments to figure out what to offer. The carbs still come with the 7mm insert pre-installed and I'll probably end up offering from 6.0mm to 8.0mm in .5mm increments. Figure that these should be available in a couple of weeks. Let me know if you guys have any more questions about this.

Regards,

Ron

These carbs have a insulator around the neck of the carb to take care of the heat.

Ya, the older B5 carbs were Great I never had any issues with them,These new carbs are an added bonus to the already killer value of the b5. They definatley are NOT like the old collari type alum carbs These are NICE!!! Leave it to Werks to make a Great engine even better with a nicer carb and Still keeping the price the same!!!

how does the b5 compare to the ninja?

Near the end of my V-spec's life I put the Ninja p/s in. I prefer the B5 over my eb mod's vspec and the ninja'd vspec.