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Zed 900 road racer .
Moderators: KeithZ1R, chrisu, paul doran, Taffus
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Ginger Bear
- Hardcore
- Posts: 6850
- Joined: 16th Dec 2008
- Location: In the Dark.
- Contact:
Rich wrote:zed1015 wrote:Let's just hope the buggers work
should do WG offers it as a service, so it may be worth asking him if there are any more mods - needle jet height into venturi etc
Yeah! the bottom of the slide bore needs cutting deeper to allow the slide to shut fully and then the needles need lifting by the same amount to re-position them correctly in the needle jet emulsion tube and that's the lot apart from a bit of fiddling with jets.
Slide groove cutter made.
A couple of bits of alloy bar for the guide and mandrel.
and an old steel bar end weight from the scrap bin for the cutter head.
Cutter pressed on to the mandrel and a slot in the side of the cutter allows it to pass past the plastic guide for the throttle slide.
Guide slots in after the cutter to keep everything square.
Ready for action
BEFORE
AFTER
A couple of bits of alloy bar for the guide and mandrel.
and an old steel bar end weight from the scrap bin for the cutter head.
Cutter pressed on to the mandrel and a slot in the side of the cutter allows it to pass past the plastic guide for the throttle slide.
Guide slots in after the cutter to keep everything square.
Ready for action
BEFORE
AFTER
Had a bit of a headscratcher this morning when trying the slides and finding that they still didn't fully close
It took a couple of minutes for the lightbulb to come on and i realised that the underside of the slide was sitting on the outer raised portions of the carb bore either side of the slide.
I quickly cobbled together a heath robinson device using a piloted counter bore to reduce their height and was soon back in business.
Will have no such mucking about resetting the height of the jet needle as it is the spring loaded type so it's just a matter of replacing the thick spacer above the clip with an appropriate thinner one
A bit of jiggery pokery to open up the internal fuel galleries for increased flow and it'll soon be rebuild time.
It took a couple of minutes for the lightbulb to come on and i realised that the underside of the slide was sitting on the outer raised portions of the carb bore either side of the slide.
I quickly cobbled together a heath robinson device using a piloted counter bore to reduce their height and was soon back in business.
Will have no such mucking about resetting the height of the jet needle as it is the spring loaded type so it's just a matter of replacing the thick spacer above the clip with an appropriate thinner one
A bit of jiggery pokery to open up the internal fuel galleries for increased flow and it'll soon be rebuild time.
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coldsummer
- Hardcore
- Posts: 3211
- Joined: 29th Jun 2009
- Location: Berkeley
Made a start on the exhaust while waiting for some carb parts.
Started by whittling the collars that will sit in the head out of some stainless plate .
These are a very snug fit and won't need any gasket just a token smear of high temp silicone to seal.
Four short lengths of exhaust pipe were cut and some unknown stainless flanges i had lurking about were bored out to suit the pipe
Put them all together with some flared sleeves welded midway for the flanges to push against
And i have a set of spigots ready for some slip on downpipes.
Next job was to construct the 4-2-1 collector .
A couple of reclaimed r1 and a zx9r exhaust systems donated their organs to the cause.
Now to conjure something out of this lot to link everything together.
Started by whittling the collars that will sit in the head out of some stainless plate .
These are a very snug fit and won't need any gasket just a token smear of high temp silicone to seal.
Four short lengths of exhaust pipe were cut and some unknown stainless flanges i had lurking about were bored out to suit the pipe
Put them all together with some flared sleeves welded midway for the flanges to push against
And i have a set of spigots ready for some slip on downpipes.
Next job was to construct the 4-2-1 collector .
A couple of reclaimed r1 and a zx9r exhaust systems donated their organs to the cause.
Now to conjure something out of this lot to link everything together.
Last edited by zed1015 on Mon Apr 29, 2013 8:59 am, edited 1 time in total.
-
Ginger Bear
- Hardcore
- Posts: 6850
- Joined: 16th Dec 2008
- Location: In the Dark.
- Contact:
-
Is Vic There
- Hardcore
- Posts: 1460
- Joined: 8th Nov 2011
- Location: Brisbane, Australia.
I've said this a few times now, but I'll say it again, this is the best thread on any vehicle forum I'm on, fantastic work.
Z1000R ELR, Z1100R ELR, GPz900R A1, GPz750 Turbo, Norton F1, Harris Mag 2, Harris Mag 5, Yamaha YZR750SP, Triumph Steve McQueen, Suzuki RGV250 Sheene Rep, Suzuki RG500 Walter Wolf, Suzuki RG250 Walter Wolf, Aprilia RS250, Yamaha YL1, RG500. H**** NS400.
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