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Search found 1833 matches

Author: warren3200gt
Thu Mar 28, 2024 6:50 pm
Forum: Bike Help
Topic: Z900 A4 fuel leak any ideas please?
Replies: 42
Views: 597

Re: Z900 A4 fuel leak any ideas please?

As Nigel said poor running is gererally down to several issues accumulated over the years. Those jets are suspect and I would replace them. As they not genuine I would suspect both the needles, needle valves and airscrews are not either. Your right itheres no guarantee a replacement set would be a y...
Author: warren3200gt
Thu Mar 28, 2024 6:08 pm
Forum: Bike Help
Topic: Z900 A4 fuel leak any ideas please?
Replies: 42
Views: 597

Re: Z900 A4 fuel leak any ideas please?

Mikuni jet logo. Appears on both genuine main and pilot jets.
download.jpeg
download.jpeg (6.64 KiB) Viewed 29 times
Author: warren3200gt
Thu Mar 28, 2024 5:16 pm
Forum: Bike Help
Topic: Z900 A4 fuel leak any ideas please?
Replies: 42
Views: 597

Re: Z900 A4 fuel leak any ideas please?

115 in the center two and 117.5 (118 no such thing) in the outside is wrong. The middle two are the ones that run hotter so if anything you want bigger jets in them to be run richer. Do the main and pilot jets have the Mikuni logo on them? For sure someone's been in there and messed with them. 2022_...
Author: warren3200gt
Thu Mar 28, 2024 12:28 pm
Forum: Bike Help
Topic: Z900 A4 fuel leak any ideas please?
Replies: 42
Views: 597

Re: Z900 A4 fuel leak any ideas please?

When checking the jet sizes look to see how the size is stamped, if they look like second rate stamping, at an angle or generally just naff chances are they are after market dross. Genuine mikuni jets have size and their logo stamped appropriately neatly. If they are after market bin em for sure. If...
Author: warren3200gt
Wed Mar 27, 2024 7:13 pm
Forum: Bike Help
Topic: Z900 A4 fuel leak any ideas please?
Replies: 42
Views: 597

Re: Z900 A4 fuel leak any ideas please?

The ones on the carb sides are airscrews,. So screwing them in richen the mixture and turning them out weakens the mixture.
If you still show rich at 3 turns out your pilot jets are too big. The jet size should be stamped on them. Both pilot and main.
Check sizes and report back.
Author: warren3200gt
Wed Mar 27, 2024 2:37 pm
Forum: Bike Help
Topic: Z900 A4 fuel leak any ideas please?
Replies: 42
Views: 597

Re: Z900 A4 fuel leak any ideas please?

Fingers crossed for you Graham, sure someone will step up, but if they don't the offer is open
Author: warren3200gt
Wed Mar 27, 2024 12:34 pm
Forum: Bike Help
Topic: Z900 A4 fuel leak any ideas please?
Replies: 42
Views: 597

Re: Z900 A4 fuel leak any ideas please?

If you were closer mate or you don't have any volunteers close to you and you would find a courier to get it to Kent I'd happily help you out foc.
As its running it can only be settings assuming all the carb parts are original and in good nick. :up
Author: warren3200gt
Tue Mar 26, 2024 5:41 pm
Forum: Bike Help
Topic: Z900 A4 fuel leak any ideas please?
Replies: 42
Views: 597

Re: Z900 A4 fuel leak any ideas please?

Graham, you have one workshop manual and some toilet paper. Flush the Enid Haynes Blyton copy. Vm 26 carbs are the same as vm24 's bar the throat size in this area. Download a Z650 kawasaki manual for a better idea. You don't need to double washer the valve seat. I assume you have genuine valve need...
Author: warren3200gt
Tue Mar 26, 2024 3:45 pm
Forum: Bike Help
Topic: Z900 A4 fuel leak any ideas please?
Replies: 42
Views: 597

Re: Z900 A4 fuel leak any ideas please?

I suspect that where you straightened the float it is no longer sticking ng/catching on the bowl/gasket. However where you have double washer Ed the needle valve seat you have effectivelly dropped the seat inlet hole lower so the floats now can't drop low enough to oped the fuel inlet fully. Once a ...
Author: warren3200gt
Tue Mar 26, 2024 1:18 pm
Forum: Show us Yours
Topic: Z1A ready for the road
Replies: 14
Views: 492

Re: Z1A ready for the road

Hope it was more Millyard than Cole hands on Nigel. :lol: :lol:
Author: warren3200gt
Tue Mar 26, 2024 12:31 pm
Forum: Bike Help
Topic: Z900 A4 fuel leak any ideas please?
Replies: 42
Views: 597

Re: Z900 A4 fuel leak any ideas please?

Using fuel instead of water will tell you more Graham. If there is a crack in the overflow it'll be full of fuel. Fuel and water don't mix so the fuel would effectively be a barrier to any leaking water. As the overflow tube sits higher than the bowl surface you could try putting your finger over th...
Author: warren3200gt
Mon Mar 25, 2024 9:07 pm
Forum: Bike Help
Topic: Z900 A4 fuel leak any ideas please?
Replies: 42
Views: 597

Re: Z900 A4 fuel leak any ideas please?

If the overflow tube is cracked split it can be replaced but it's easier to sleeve it on the outside with some bass tube then solder it in place. If you've got an radio control model shop near you they are a treasure trove for little odds and sods like brass tube, piano wire to make springs, small t...
Author: warren3200gt
Mon Mar 25, 2024 8:00 pm
Forum: Bike Help
Topic: Z900 A4 fuel leak any ideas please?
Replies: 42
Views: 597

Re: Z900 A4 fuel leak any ideas please?

Another thought. With the bowl off fill it with fuel and see if level drops. If it does then the overflow tube has a crack.
Which means when the level drops from dumping fuel from the crack, it refills and then repeats again etc etc.
Author: warren3200gt
Mon Mar 25, 2024 7:57 pm
Forum: Bike Help
Topic: Z900 A4 fuel leak any ideas please?
Replies: 42
Views: 597

Re: Z900 A4 fuel leak any ideas please?

Sounds like the float is sticking on the bowl side. When bowl off works fine, when bowl on overflows. Can only be a clearance issue between bowl and float.
Author: warren3200gt
Wed Mar 20, 2024 1:18 pm
Forum: Bike Help
Topic: Alloy wheel Identification CMA’s maybe?
Replies: 17
Views: 404

Re: Alloy wheel Identification CMA’s maybe?

Thanks Gents, one of those bikes that gets played with every close season. It's never quite the same 2 years running. Sometimes for the better, sometimes for the worse so gets swopped back immediately :lol:

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