Crashed at Black Spur

Traralgon via Mirboo North

Picking up Darren's pillow in Traralgon

EJ - Woods Point dirt road

Mirboo North via Almurta - Hallston

Depart to Mirboo North Inline4 cafe via Almurta - Hallston: https://goo.gl/maps/NgcwBhanHpB2

Returning via Hallora - Poowong: https://goo.gl/maps/qYqocn4HV1o

Unbelievable roads and sceneries

Mirboo North (Inline4 Cafe)

Planned ride to Mirboo North's Inline4 Cafe.

Ride abandoned due to major cosmetic incident at Glen Alvie Rd.

Planned Route: https://goo.gl/maps/We8K79teSdR2
Planned return: https://goo.gl/maps/FpwhSnmWP9P2

Sunny spring ride to Flinders

Touring setup GPZ900R

BMW GS Experience at Toolangi

MotoGP 2017

Rode to MotoGP with Leo on a wet day. Stopped at Tooradin for breakfast

GOR with INSYDER

Rode to the Great Ocean Road with INSYDER, taking the ferry from Sorrento all the way to 12 Apostles.
Major cosmetic incident on 2 bikes.

Nice photos below taken by Leo on the way:

Ride with Leo

Ride with Leo, just arriving from Indonesia - to Arthur's Seat

mstcv oct 17

Blessing of the Bikes 2017 at San Remo

Ride with Darren to Mt. Dandenong

MSTCV Grand Final Ride to Licola

The GPZ interview - Backyard Bikes

The GPZ's in episode 2 of Backyard Bike's

GPZ900R at the Great Alpine Road

Japan magazine

Japanese magazine showing an A7

My A7:

Reefton with Ravi and Roy

Restoring full power to later GPZ900R models

Later GPZ900R power are reduced compared to 84/85 (A1-A2) due to emission requirements and perhaps as marketing strategy to sell their newer (but slower) bikes. The full power was 115hp and the reduced versions were 108hp.

I bought used carbs off 85 model (A2) from Ebay. From the outside it looks the same as my original ones, but it's got the following jets:

Main: 135
Pilot: 35
Needle: N27B

There are comprehensive information regarding the jettings between models here:

http://keihincvk40.blogspot.com.au/2013/12/the-keihin-carburettors-for-gpz900r.html

Tips: the throttle cable actuators are different. Later model use the push-pull wire, so if installing an A1/A2 carb you need to also buy the correct throttle cable. Or in my case I just moved the cable holders between the 2 carbs.

The next difference is airbox intake size. It's quite self-explanatory below:

And lastly, the original exhaust has different baffle length and diameter. Original exhausts are pretty much unobtainable so an approximate can be had by cutting the baffle like below.

The baffle can be taken out by removing the rivets and pulling it using some home-made tool such as long rod with a catch welded at the end. It took some hammering/persuasions as that narrow taper tightly pressed into an opening inside. But thankfully not welded.

After riding it I noticed much of the difference is at the top RPM, let's say 7500RPM and above. The engine feels to be spinning much more 'freely' and 'willingly' compared to before. I like it.