Exhaust Collector Repair

[EXUPMarky]

The cast steel exit section on the 4:1 collector needs replacing or a repair where the silencer clamps on.

I think it's Cast Steel and can check with a grinder for the presence of sparks as a quick check.

Anyone have any experience of repairing the collector on these bikes?

I may open up the silencer too and have a look inside..

[EXUPMarky]

That'll save me machining something from stock so thanks for the tip!

Is it cast steel do you know as I'll then just use a Mild Steel filler rod?

Cheers

[Stig]

I migged it with mild steel

[EXUPMarky]

Will start with MS rods on the TIG then..

[creedxup]

Old post but a bit of info.

The Exup housing is a cast iron part, the connector that the end can clamps to is mild steel so, can easily be welded and/or replaced with tube

[Stig]

I now buy these and weld them to the cast steel valve chamber.
Ebay- exhaust reducer

[Stig]

This is a view of the inside workings
Exup1000 Facebook group

[bunk]

I cut the extension off the mangled header i have, as a result of watching Toms Workshop on youtube. Every fzr1k newb should watch that series.

[creedxup]

I now buy these and weld them to the cast steel valve chamber.
Ebay- exhaust reducer

That’s handy, I try to buy good originals as my welder’s retired