Identify my pipe.......

[JetSkiDood]

I'm getting ready to pipe the 05 SJ. Here is a pic of the pipe. The question is, the headpipe on my SN says Factory "B" Pipe and the pipe pictured only says Factory Pipe. Is there a difference? It came off of a SN650 but is going on a 701, can I just enlarge the exhaust manifold bolt holes for the larger 701 bolts? Also, what chamber is this? Mod?

Are there any tricks/tips to getting the carbs apart for rejetting, I have heard it is a real PITA getting the metering block screws out and pulling the tamperproof covers off the adjusting screws. Thanks!

 

[Crab]

650, measure the opening of the headpipe, bet its 44 and not 47mm.

 

[sflsurfrider]

its still a b pipe

 

[Big Kahuna]

but the chamber is for a 650cc motor.......... dont know how it would work.

 

[Crab]

but the chamber is for a 650cc motor.......... dont know how it would work.

They work, our bud Jason has one, probably not ideal.

 

[JetSkiDood]

It's gotta be better than stock though, right????

 

[Crab]

You really should have the headpipe and manifold enlarged to 47mm, or risk deto. You home today?

 

[sflsurfrider]

i was saying "its still a b pipe", in reference to the fact that it doesnt say 'factory "b" pipe' on it like his other one.

yes, itll be better than stock

 

[JetSkiDood]

Ya, playin hooky!!

 

[sflsurfrider]

....however, you might need to buy a different manifold if that ones a 650 manifold.

 

[WAB]

The bolts are not larger on all 701 motors, only the 62t cylinders. The OEM cyl on your 05 SJ should be a 61x cyl which has the same size bolts as the 650.
You can run that 650 chamber, but you'd get more power out of a newer style limited or mod chamber. I have a 650 manifold on my 760 motor. Opened it up myself from about 44mm to about 47mm.

Check out the FAQ section. Think there is a section about jetting the new carbs with the tamper dohickies.

 

[Crab]

http://x-h2o.com/showthread.php?t=10835&highlight=47mm+headpipe

 

[sflsurfrider]

The bolts are not larger on all 701 motors, only the 62t cylinders. The OEM cyl on your 05 SJ should be a 61x cyl which has the same size bolts as the 650.

i was referencing the different shapes of the exhaust ports, not the bore or bolt size.

doesnt the use of a 650 manifold on x or t cylinder result in very little sealing area around the ports and cooling jacket?

 

[JetSkiDood]

Well, probably easier to just get a 701 manifold. Anyone have a FP 701 Exhaust manifold for sale/trade???

 

[WAB]

We posted at almost same time, I did not read your reply until after I had posted. I was replying to his orig question about the bolt size. Sounds like he thought all 701s used the larger bolts.
I've been running the manifold for 3 years w/o any problems. It was a small one, like 42mm-44mm I think. I figured it was for a 650, but may be for a 701. :dunno:

 

[Idok]

but the chamber is for a 650cc motor.......... dont know how it would work.

it'll rip!

io have ridden a couple of 701's (one ported, one stock) with this same pipe...

run it and forget about it

 

[JetSkiDood]

The FP site says the difference between a Mod pipe and a Limited is length. Does anyone know what the measurements are??