1150 Kat.. time for engine mods... advise requested!!

[Arronduke]

And the yet to pick up EZ...

[chef1366]

EZ is an 82

[posplayr]

It seems to have a black motor and 83 foot pegs

[ptexotik]

It's downunder ... they're all 'upside down'

[chef1366]

I don't get pics out here

[quexpress]

Just rejetted the 1135 with a second air jet in the mouth of the carb. Needed to tap the front with a 5mm tap and screw in a air jet on top of the original. Also went from 175 main to 155. Starts and revs much better now so I am looking forward to a road test.

Very nice projects!
Do you now have 2 air jets in the mouth of each carb, or did you only replace the original one?
What size air jet did you use?
Thanks!

[Arronduke]

Very nice projects!
Do you now have 2 air jets in the mouth of each carb, or did you only replace the original one?
What size air jet did you use?
Thanks!

The airjet for the 1135 carbs was a 55 and the main a 155.

[Arronduke]

It seems to have a black motor and 83 foot pegs

I am interested if this in what year this is meant to be... seller said 1983.
Its done 33km and is a GSX1100EZ in NZ.

We all know what I want to do to this....same as everyone after the original EZ was built by Isleoman . That bike and other like it are stunning.

Who would have thought such a boring looking bike (majorly under rated) would look so good.

Cant wait to start on it.

[Spot1000Kat]

In Oz and NZ the 1982 was an EZ and 83 was an ED see pic of ED attached which is stock from new except 4:1 and gearsack rack.83 all had black motors and 3 pair straight spoked rims, and 82 1100s all had cross spoked rims and silver motors down under. All standardized and nothing upside down at all, but after 30 years the best way to tell is engine and frame numbers and part microfishes as anything and everything can happen. Heaps of photos of each original model on the web.

cheers and nice bikes , love the RG.

Spot

[quexpress]

The airjet for the 1135 carbs was a 55 and the main a 155.

Thank you!
What Company/Model of jet kit is this?

[Arronduke]

A dude in NZ with a lot of racing experience.
Sell jets on line and offers advice on what you should be running, or a good starting point

Other words a carb jetting genius.

\Anyway took the Kat for a spin today. The bike felt good and reved well. It would pull cleanly from 2000 rpm in top gear... better from 2500rpm. Then its just clean through to red line.

Plugs look much better.. gone is the black rich carbs.

[posplayr]

In Oz and NZ the 1982 was an EZ and 83 was an ED see pic of ED attached which is stock from new except 4:1 and gearsack rack.83 all had black motors and 3 pair straight spoked rims, and 82 1100s all had cross spoked rims and silver motors down under. All standardized and nothing upside down at all, but after 30 years the best way to tell is engine and frame numbers and part microfishes as anything and everything can happen. Heaps of photos of each original model on the web.

cheers and nice bikes , love the RG.

Spot

The easy tell on the frame is the brushed aluminum peg mounts on the 83 v.s. the older black ones on the 82. The welded frames mounts are different for the two different pegs mounts. Other differences as you mention but this tells you frame year quiet clearly without looking at serial numbers.

[quexpress]

A dude in NZ with a lot of racing experience.
Sell jets on line and offers advice on what you should be running, or a good starting point
Other words a carb jetting genius.

Cool! PM sent!

[amxsteve]

Oh and to add I just purchased a GS1100EZ, 1983.

This one will be getting the treatment also.... but it might mean the Kat motor does not get the fruit until after the EZ project.

Mean while its work on the RG for now...

That is a beauty smoker. I had a z1r back in the day with Andrews cams carron pipe 29 smoothbores and 1100 kit. It was the fastest bike in the world till a good buddy smoked me on one wheel as he passed me on his new gamma. Those were the days.

[jimb12]

Here's another comment on the slotted cam sprockets. If you're installing performance cam shafts then they must be degreed in. In my opinion it would be foolish to slap bigger cams in with stock sprockets and therefore no regard for where the timing events are actually occuring at. Also make sure that you have the right valve springs for the cams that you want to use.

The 38RS carburetors will be fine for a 1229cc street bike. Just get a push-pull throttle so the slides don't stick open and you're good to go. I knew a couple guys who had 1229s with 38RS and they were fine street bikes.

One thing I did not see mentioned was a modified clutch basket. With such a hot rod you really need to have the basket welded with an HD kit. The helical gear on the basket causes a side load on the basket which destroys it at some point. Welding the HD kit in makes the chances of that point occuring later rather than sooner more in your favor.