Which carb is best.?

[mk1]

Wondering if most of you fx1 riders are sticking with the factory standard mikuni 44mm carb , or have you ditched it for something superior, maybe twin carbs , or is the original still the best. ? Any advice would be greatly appreciated.

 

[BoggedDown]

A lot of folks including my self run the wet jet intake with mikuni 46mm carb.

 

[kevbo]

With a stock pump, any additional power is wasted. Besides that, a bigger carb wont do much without porting and a pipe.

 

[badvinny]

I put a 48 powerbomb on one of mine with a Riva head and fx1 factory pipe, it had Dasa porting and worked well but it went from a smooth powerband to peaky or on/off. I don't think it was worth it because it made it harder to ride for newer riders.

 

[mk1]

A lot of folks including my self run the wet jet intake with mikuni 46mm carb.

I had a new jet jet kraze when they were in production back in the day for a couple of years , and it never missed a beat. I think it had the same engine as the fx1 , just with the bigger carb. Did you have to remove the engine to fit carb and intake , or can it be done with it still in the ski.?

 

[BoggedDown]

I had a new jet jet kraze when they were in production back in the day for a couple of years , and it never missed a beat. I think it had the same engine as the fx1 , just with the bigger carb. Did you have to remove the engine to fit carb and intake , or can it be done with it still in the ski.?

No engine removal, you just swap out the stock intake manifold with reeds/cages and carb. Yeah, the Kraze had the same 61x engine but also came with a west coast pipe on it too giving it a little extra umph compared to the Yamaha stock exhuast.

 

[mk1]

No engine removal, you just swap out the stock intake manifold with reeds/cages and carb. Yeah, the Kraze had the same 61x engine but also came with a west coast pipe on it too giving it a little extra umph compared to the Yamaha stock exhuast.

I had a go at removing it , got the carb off & unbolted the top of the intake manifold. I could see the top of the reeds tru the top of the intake , but didn`t know how to remove bottom section of manifold , couldn`t find any more nuts/bolts to remove , so I gave up... Whats the secret.?

 

[blasterdude]

I had a go at removing it , got the carb off & unbolted the top of the intake manifold. I could see the top of the reeds tru the top of the intake , but didn`t know how to remove bottom section of manifold , couldn`t find any more nuts/bolts to remove , so I gave up... Whats the secret.?

Use a flat head screw driver to pop the reed plate loose. The intake bolts are what hold everything down like a sandwich.

 

[mk1]

Use a flat head screw driver to pop the reed plate loose. The intake bolts are what hold everything down like a sandwich.

Thanks , i`ll give that a go..

 

[mk1]

What difference in performance did fitting the 46mm carb with the wetjet intake make , over the stock 44mm carb.. ?