Coffman's Rocket Pipe Install Instructions

[TallTexan]

Quinc I did order the Kawasaki grommets and plastic washers for the chamber that I still need to install I will be drilling them out to accept the M10 fasteners. My chamber bracket broke on our last ride of the season so I am having 2 made up so I have a spare. My issues is the spacers (washers) on the case bolt this I assume is critical to not apply pressure to the rest of the mounting bracket. The M10 case bolt was wasted and I will need to chase the case threads to clean them up. If I do not get this corrected I will have ditch this pipe as it is tearing up the case. I really like how the pipe performs I just need to get it mounted correctly. When I picked up the ski the bracket was there but not mounted at all to the case or cylinder.

Can one of you guys let me know where to pick up the rubber grommets/lord mounts for the expansion chamber? Will the Protec mounts work?

 

[Quinc]

Same as the kawar 650sx and x2 exhaust grommet and washer. Any oem parts dealer will have them.

 

[TallTexan]

Thanks for the quick reply!

 

[cwold901]

Is there any possible way you could trace those brackets out and military it to me I bought the rocket exhaust used an the mount is broken

 

[Quinc]

When I put my new engine in and take my rocket pipe out I will and can scan and email it to you with dimensions. Be a couple weeks though.

 

[cwold901]

When I put my new engine in and take my rocket pipe out I will and can scan and email it to you with dimensions. Be a couple weeks though.

That would be great thank you

 

[VinnieMaxx]

I will be pulling the motor out of my Blaster this week to install my new bracket. I had two made up in our tolling department. Once I have mine fitted I will have a print of the bracket made up and post it.

 

[cwold901]

Hey do you guys know if stock exhaust manifold gaskets will work from the jug to the manifold ? On the rocket exhaust

 

[Quinc]

Yes it is the same exhaust gasket for all exhausts. There is a difference between the 62t and 61x gaskets.

 

[VinnieMaxx]

Here is how my rocket turned out. I will get the Kawasaki grommet part numbers tomorrow and try and get that bracket drawing done this week.

 

[Quinc]

Looks great!!^^

 

[eraube65]

Quinc I did order the Kawasaki grommets and plastic washers for the chamber that I still need to install I will be drilling them out to accept the M10 fasteners. My chamber bracket broke on our last ride of the season so I am having 2 made up so I have a spare. My issues is the spacers (washers) on the case bolt this I assume is critical to not apply pressure to the rest of the mounting bracket. The M10 case bolt was wasted and I will need to chase the case threads to clean them up. If I do not get this corrected I will have ditch this pipe as it is tearing up the case. I really like how the pipe performs I just need to get it mounted correctly. When I picked up the ski the bracket was there but not mounted at all to the case or cylinder.

I realize this is an old post... However, where did you order those grommets and washers? I could use some new ones. Having mounting issues with the pipe.

 

[Quinc]

I realize this is an old post... However, where did you order those grommets and washers? I could use some new ones. Having mounting issues with the pipe.

I just bought 6 of them on ebay for 24$ Shipped. Just drilled them out and picking up new bolts/lock nuts tomorrow for it. Maybe @Scraggly can make something better?

92160A

 

[VinnieMaxx]

I got mine off of PartZilla they show in stock.
92160-3701 DAMPER

92160-3702 DAMPER

http://www.partzilla.com/parts/detail/kawasaki/KP-92160-3702.html

 

[VinnieMaxx]

Get both part numbers you need them both I just put the damper in a vice and drilled it out a little bit to accept the larger diameter bolts. Works great also get the new coupler from
https://www.siliconehose.com/silicone-hump-hose/

 

[Quinc]

Finally happy with the low end response on my coffman pipe so I drew up a picture to share.
The filter is a 1/4" inline filter from mcmaster. I have been running it on and off for 2 seasons now and still isn't plugged up. the chamber gets a lot hotter but not sizzling hot.

I still need to try with a fcv after the Tee and before the 67.5 jet. But for now I am really happy with it.

Picture:

 

[orangefinger]

Great info here !!!

Also got one for Raider for sale $ 250 ....if anyone wants a coffmans rocket

 

[Quinc]

Great info here !!!

Also got one for Raider for sale $ 250 ....if anyone wants a coffmans rocket

Giving that thing away!

 

[eraube65]

The tee is optional only if you have two pissers otherwise the line from the top of the chamber to the bottom of the chamber (stinger) can just be one water line with out the tee that is the stock set up.

I realize this thread is old, however, how would the routing in that picture change or does it need to change if running dual cooling to the mani?