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1981 GSX1100 Katana Based Project

Can we assume that'll be a light beer? :smiley_simmons:

Yeah, only 5% in these 500 ml cans. Is it going to far when the beer I like has the same silver / black colour scheme on their can as the Kat? :-k

A sunny Saturday afternoon here right now and having a few beers and some beef jerky waiting for the start of the MotoGP Sprint Race.


Beer 1 by Max Mutarn, on Flickr


Beer 2 by Max Mutarn, on Flickr
 
Time for the shocks to have a go. For twin shock rear suspension to operate at their best they should travel through the same vertical plane as the swing-arm and wheel. Given the wheel is 90 degrees when in the swing-arm that is two of three accounted for so the wheel is a good reference to use to install the shocks so they operate through 90 degrees and not at an off-set angle to vertical. These vintage pre-robot assembly line Kat frames were built by people and there can be slight variations and shock top mounts in some cases may need spacers to ensure exact shock alignment for both shocks. The third pic shows what size spacer will need to made for the left shock to be positioned in line with the wheel.

Shock 4 by Max Mutarn, on Flickr


Shock 5 by Max Mutarn, on Flickr


Shock 6 by Max Mutarn, on Flickr


Shock 7 by Max Mutarn, on Flickr
 
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Interesting thread. Love what you've done so far! Looking forward to the finished bike.

Any idea how much has been reduced from your wallet on this build? Some of those parts look expensive!
 
Interesting thread. Love what you've done so far! Looking forward to the finished bike.

Any idea how much has been reduced from your wallet on this build? Some of those parts look expensive!


Yes, at times the wallet has been a bit light on. The shocks were pricey but they are one part I never skimp on, riding is so much better with decent shocks. Nealy all the other parts are used and been found on auction sites or swap meets or from my pile of Suzi parts I have collected over the last few years when they were selling for very little money, unlike now.

Which parts look expensive?

Hoping to have the DW running in Dec. I'll be getting help from a mate to sort out the electrics and get her fired up, the dark art of elec-trickery is not my thing.

Cheers.
 
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Great project so far!

I saw the carbs were mentioned a couple couple ago, and it reminded me of my old GS450S. I replaced the stock carbs for ones from a 1st generation GS500 for pure performance gains, and was really surprised at the weight difference! I didn't have an accurate scale, but the GS450 carbs were easily a couple pounds heavier.

4V GS1100 carbs=7.7 lbs, GSXR flat slides=4.5 lbs. -3.2 lbs + H.P. gains.
 
4V GS1100 carbs=7.7 lbs, GSXR flat slides=4.5 lbs. -3.2 lbs + H.P. gains.

Is 4.5 lbs the total weight of the flatslides including the twin cables and twin cable throttle assembly? Twin cables and throttle can weigh between 370 - 490 grams depending on if they are OEM or aftermarket.
 
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