Opinions on this GSPD
- Thread starter (RIP) trickytree
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Don't know much about them (although I suppose one Airhead is much the same as another, mechanically!) but it certainly looks pretty.
Beemerboff
Registered user
Looks OK, but driveshaft, shock , starter and possibly gearbox will probably need attention soon, if the haven't been replaced, so see if there are any receipts for the work.
When I bought my 93 with 100,000 km the box had already been done, the shock was poorly and the driveshaft and starter went within 30,000 km.
When I bought my 93 with 100,000 km the box had already been done, the shock was poorly and the driveshaft and starter went within 30,000 km.
fayeslane
Registered user
The 89 GSPD that is being delivered to me in an hour or so is not as flash as that 
That bike will have a strange riding position with that cut down seat.
There's only a very limited number out there so they do fetch a premium.
Budget for a replacement seat and rear shock. Worst case scenario, as mentioned above, will be a driveshaft as well. The driveshafts do fail but not as often as you'd believe reading the sites. Longer rear suspension (ohlins etc) can cause the universal joint to bind causing premature failure.
There's only a very limited number out there so they do fetch a premium.
Budget for a replacement seat and rear shock. Worst case scenario, as mentioned above, will be a driveshaft as well. The driveshafts do fail but not as often as you'd believe reading the sites. Longer rear suspension (ohlins etc) can cause the universal joint to bind causing premature failure.
And what's that hideous mudguard extension !
Great bikes that could be with a few choice alterations. They can need money spending but once sorted are a joy to ride on smaller roads and a nice bike to own .
Great bikes that could be with a few choice alterations. They can need money spending but once sorted are a joy to ride on smaller roads and a nice bike to own .
B Murr
Registered user
nice but price is just ridiculous but I guess in line with uk. Saw a salvage one, a non runner regular 89 gs with hot wired ignition, butchered parts here and there plus carb floats missing and from photo possibly bent forks and some fool bought it for 2000 quid, can only make sense if breaking it afaik.
Having looked at the photographs on s computer instead of my iPhone. That bikes fitted with a lousy keihin y piece. When you look at it if it's also fitted with keihin stainless down pipes (no balance pipe at the front) you'll need to budget for replacement downpipes with a balance pipe otherwise you'll suffer from terrible midrange running issues.
Give the silencer a good hard slap to see if the baffles rattling. Y pieces obviously let the pulses go straight into the silencer and usually knock the baffles out.
Give the silencer a good hard slap to see if the baffles rattling. Y pieces obviously let the pulses go straight into the silencer and usually knock the baffles out.
Thanks very much guys, I slapped on loads of cream and now the itch has gone.....for now 
Should have heard the alarm bells when they chopped nearly a grand of the price without me even asking.
Pick up a Aprilia Pegaso tomorrow to knock around on and will treat the Rockster to some new shocks and a Sargent seat ready to whisk Mrs.tree to the Alps next summer.
Should have heard the alarm bells when they chopped nearly a grand of the price without me even asking. Pick up a Aprilia Pegaso tomorrow to knock around on and will treat the Rockster to some new shocks and a Sargent seat ready to whisk Mrs.tree to the Alps next summer.
Why do people change them?
Apart from the originals rotting out, there is no point as there is no performance advantage to fit a Y piece to an Airhead
Mongolian Explorer
Registered user
had dealings with them, not the most savoury tracings outfit in my books !!!
Beemerboff
Registered user
If the orig collector / box is rotted out there is little option but to replace it with a Y piece.
They can be made to work better than the OEM system, but it is not just a case of sticking a Y piece into an otherwise unchanged bike. ,Usually changes to the muffler, air box/filter and carbs are required too, with a less restrictive muffler probably the first requirement, and the rest tuned to that.
They can be made to work better than the OEM system, but it is not just a case of sticking a Y piece into an otherwise unchanged bike. ,Usually changes to the muffler, air box/filter and carbs are required too, with a less restrictive muffler probably the first requirement, and the rest tuned to that.
Exactly!
Bearing in mind a y piece should flow well and scavenge gases from the other cylinder spot the keihin http://www.bmwboxersupplies.com/exhaust-c-8.html
Bearing in mind a y piece should flow well and scavenge gases from the other cylinder spot the keihin http://www.bmwboxersupplies.com/exhaust-c-8.html
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Still trying to flog it?
Seriously go and put it on a dyno, get an air/fuel plot and post it up here.
Seriously go and put it on a dyno, get an air/fuel plot and post it up here.
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Well! There goes your resale value
fayeslane
Registered user
Latest addition to the fleet. Resplendent in Santa colours Solves the argument about high or low front guards being better.
Solves the argument about high or low front guards being better.
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Looks good... IMHO take the low one off ! 
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