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Well some of you lot are into older bikes as well so here is this evenings exploits in the shed. The reaosn for doing it is that the headgasket went on the old GS550 lump and a new headset is 55 quid and I got offered the known good GSX600 engine for 40 notes. And also the 550 put out only about 45 hp and the 600 is approx 70.
well regular readers may remember me making noises about sticking a GSX600 lump into a GS550 a few months ago, today I got bored of tripping over the GSX6 lump in the shed all the time so………….
As you can see the lump is in. And amazingly enough it all fits really surprisingly well. You need to take the sump and oil strainer off to give enough clearance to lift in into the frame and then bolt it all back on afterwards.
The front engine mounts almost exactly line up and so does the bottom rear one, couple of new spacers required (or some washers depending how botrhered I feel about it all)
The tank even fits back and clears the top end, which is surprising as its a fair bit taller.
The old lump is much smaller and narrower at the top end than the GSX one, much. And I can tell you they are both heavy when you are lifting by hand and on your own,
The old lump looking lonely……….
So thats its for now, its looking good, the chain run is almost spot on straight off, the frame looks like it will allow the bolting on of downpipes without any fouling.
I hope the carbs all fit in the space left
Another 3 months and i might stick the carbs and loom etc from the GSX on
If i dont stumble accross a 750 ‘donk’ in the meantime.Cheers Radar,
Im looking at changing the front end and a different rear wheel now also, watch this space
More progress…………..
A few points first, I am really sorry ay how bad i am at taking pictures.
Im also really sorry my shed is such a mess and that i work in such a bloody awful messy way.
id like to point out that to get it to this point has cost me no more than 450 notes at this point, aim is to be MOT’d for 600 (well technically its still MOT’d but thats as a GS550.Anyway,
today i bolted in the front end, total peice of cake, its a Bandit400 front with twin discs. It bolted straight in and even uses exactly the same size bearings, result.
The rear end is a bit more tricky, i decided to be a smart alec and not just use the Bandit400 swinger and weld twin shock mountings to it, i decided to transplant the whole mono rear end.
Armed with a tape measure, steel rule angle grinder and a welder i attcked the Bandit 400 frame. This left me with the upper shock mount and the lower mono linkage mounts.
These were measured, re-measured and finally tried against the GS550 frame, I got things as near as the GS frame allowed, very loosely tacked everything in place and bolted it all up, seemed OK so took it all out again and welded it all up.Its a bit longer than the GS was, the rear swinger gives it a bit of a drag bike look, which i quite like, hope its not too long a wheelbase for out on the road but we shall see.
Will it all end in tears? Watch this space as they say.
Good work on the mono shock, are you confident the frame will be able to cope with the loads coming through one point rather than two?
quote:
Good work on the mono shock, are you confident the frame will be able to cope with the loads coming through one point rather than two?Im almost confident, but not quite, im going to gusset the frame and put a couple of bracing bars accross also.
I want to see how much space im going to need for some sort of airbox and battery etc first though.
quote:
Originally posted by Stinkwheelquote:
Good work on the mono shock, are you confident the frame will be able to cope with the loads coming through one point rather than two?Im almost confident, but not quite, im going to gusset the frame and put a couple of bracing bars accross also.
I want to see how much space im going to need for some sort of airbox and battery etc first though.
Are you going to mock it up with some parts first? Good idea
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