Jaydee

I have the offical Suzuki manual for the mark 1.

Looks like a Z650b tail unit. Thing Unitek used to make them. Maybe try Jason Fibreman Dunne. He might have one in his catalogue.

Raytech by any chance? His stuff looks good.

Just be aware the a viton o-ring is roughly 3.5 times the price of a nitrile one. I'm not saying sellers on the bay are selling inferior o-rings, but can you tell the difference? That's why I only used a dedicated engineering based outlet so I sure what I'm getting.

Once you have the carb top off, you should be able to lift the outer rim of diaphragm from the recess on top of carb. Gently pull center edge of diaphragm back from slide top and pull up over the slide. Should be easy enough to do even with a stuck slide.

What are you using the engine for? Road, race or drag? I'd have a totally different spec for each application.

Oh, go on. You twisted my arm. 1x3mm -mixture screw o-ring 1.5x3.5mm -carb top vacuum o-ring 1.5x5mm -float mechanism o-ring 1.5x7.5mm - float needle well o-ring 1.5x10mm -under slide guide o-ring

I use Simply Bearings. You have the added advantage of being able to order o-rings in different softness/hardness grades. Far more options than Eblag in most cases.

Always the way.

The brass well should push in firmly. If you need a few o-rings, p.m. me your address as have all the sizes in viton for c.v. carbs.

Just make sure you pull off the diaphragm off the slide if you do this or it will be fubar'd in hot water.

Try removing the main jet. Screw a long m5 bolt into the emulsion tube as far as it will screw in. Gently tap the bolt and see if the emulsion tube pushes against the slide to push out. Done a few this way with gummed up slides. Go easy as emulsion tube is brass. Obviously you will have top off the main jet needle removed before you start.

Did you put sealant under the half moons on the sides of the rubber gasket?

Got an 1127K front end here. 745mm centre axle to fork top. 43mm stantions.

You probably just need a rebuild kit for the tap you have. If its got a vacuum line, then more than likely its a diaphragm tap. The rubber parts in the tap have hardened over time which stops the diaphragm working correctly.