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Search found 2074 matches

Author: zed1015
Mon Jan 13, 2020 6:23 pm
Forum: Bike Help
Topic: Kz900 won’t rev over 3k
Replies: 73
Views: 2569

Re: Kz900 won’t rev over 3k

Ok, thanks for that, I will give it a go this week. I’ve got the slide gap set at 0.8 mm (engine side) and the pilot jets set at 1 1/2 turns out. It was set like this the first time, but the revs were too high, and the throttle stop was right off. Yes! sounds like the slide adjusters were set on th...
Author: zed1015
Mon Jan 13, 2020 5:12 pm
Forum: Bike Help
Topic: Kz900 won’t rev over 3k
Replies: 73
Views: 2569

Re: Kz900 won’t rev over 3k

Don't use the fuel screws to adjust the idle. Fuel screw is only for pilot mixture setting. Having the fuel mix screw almost closed would have caused pilot starvation, this would not cause a fuel shortage at high revs but a flat spot that the engine may struggle to pull through. Start with the fuel ...
Author: zed1015
Mon Jan 13, 2020 4:05 pm
Forum: For Sale
Topic: Air Corrector Jets for 24,26 and 28mm Mikunis.Z650,Z1,Z9,Z1000.Also Suzuki GS 750,850,1000. £32 posted.
Replies: 47
Views: 5880

Re: Air Corrector Jets for 24,26 and 28mm Mikunis.Z650,Z1,Z9,Z1000.Also Suzuki GS 750,850,1000. £32 posted.

A little update also added to the original 1st post.. Jets also available for CV carbs on KAWASAKI ZR550A1, Z650, Z750L3. ,GT750, GPZ750,Z750 CUSTOM. Z1000J1/J2/J3/R, Z1100A1/A2/A3 - SUZUKI GS550 mx/mz Katana. GS650GT, 650 Katana 81, GSX750ET, GS850G, GS1000E/G, GS1100G, GSX1100 early, GSX1100G/KATA...
Author: zed1015
Sat Jan 11, 2020 5:34 pm
Forum: For Sale
Topic: FS: Z1 1973 carbs
Replies: 18
Views: 672

Re: FS: Z1 1973 carbs

Sgt.Pinback wrote:
Bill P wrote:what don't you do :lol:


??


I think he was referring to the highlighted part of this post from Ultim8pc.

"I refurbish and buy and sell carbs. These are the early ribbed z1 carbs. I've never seen a set up for sale at anywhere near £300."
Author: zed1015
Sat Jan 11, 2020 4:10 pm
Forum: Bike Help
Topic: Carburation?.....
Replies: 3
Views: 229

Re: Carburation?.....

The problem could be attributed to other issues such as over jetting, carb wear, sticking ign advancer, cam timing a tooth out etc but Yes! the choke plungers on these have a swaged in rubber seat which does degrade and go hard allowing excess fuel to bleed into the system. This is an often overlook...
Author: zed1015
Fri Jan 10, 2020 6:59 pm
Forum: Bike Help
Topic: Kz900 won’t rev over 3k
Replies: 73
Views: 2569

Re: Kz900 won’t rev over 3k

The ones in your previous pics are 26mm. I can tell the size of these at a glance from a mile away and by the proximity of the venturi bore to the casting around the air drilling for the choke. 26mm bore doesn't touch the casting, 28 puts a flat on the side of it and bored out to 30 will nearly brea...
Author: zed1015
Thu Jan 09, 2020 5:53 pm
Forum: Bike Help
Topic: Carbs on an 1100 Unitrack engine
Replies: 12
Views: 416

Re: Carbs on an 1100 Unitrack engine

Fitting appropriate jets is sound advice until you add the four into one pipe. Some work well without too much tweeking. Others are problematical. Do not get bogged down with main jet substitutions and needle heights. All problems go away when air constrictors are installed in the air bleed hole to...
Author: zed1015
Wed Jan 08, 2020 4:41 pm
Forum: For Sale
Topic: 2004 zx10r plug and play engine
Replies: 4
Views: 246

Re: 2004 zx10r plug and play engine

Julian_Boolean wrote:I wonder if it would squeeze into an FZR400RR frame :shock:

Seen a 1000exup in a 400 so there's a good chance.
Author: zed1015
Tue Jan 07, 2020 4:51 pm
Forum: Bike Help
Topic: Simoniz tough black paint
Replies: 5
Views: 261

Re: Simoniz tough black paint

My tin does not have the yellow label but it is coded SIMVHT51D so I assume this is OK Thanks So that's three different cans with the same code on ? Who knows what they are playing at ? Has to be a reason for the difference between the two new versions but I've been using the yellow for a few years...
Author: zed1015
Tue Jan 07, 2020 4:36 pm
Forum: The Bottom Shed
Topic: New Project
Replies: 24
Views: 1201

Re: New Project

Closest motor to a Z1 you are ever going to get and copied almost directly from the Z engine design. Even the cylinder stud spacings are the same and the GS head will drop straight on the Z motor. A mod that was popular in drag racing to take advantage of the GS's bigger valves until the 'J' motors...
Author: zed1015
Tue Jan 07, 2020 11:42 am
Forum: Bike Help
Topic: Simoniz tough black paint
Replies: 5
Views: 261

Re: Simoniz tough black paint

The one to use is coded SIMVHT51D with the yellow labelling ( first pic ). Note the VHT in the coding. They changed the can design a while ago so it's easy to get the wrong one. It used to be in the blue tin as in the second pic and was labeled as either Simoniz or Sperex. It was originally "Sp...
Author: zed1015
Tue Jan 07, 2020 11:07 am
Forum: Bike Help
Topic: Carbs on an 1100 Unitrack engine
Replies: 12
Views: 416

Re: Carbs on an 1100 Unitrack engine

I haven't got the specific specs but look at the stock jetting for the z1100r or the 1000J and go up on the main slightly.
The 1100 motors, spectre etc are also very close to the Unitrack including using the bathtub head but with shim over valve adjustment.
Author: zed1015
Sun Jan 05, 2020 11:56 pm
Forum: The Bottom Shed
Topic: New Project
Replies: 24
Views: 1201

Re: New Project

Closest motor to a Z1 you are ever going to get and copied almost directly from the Z engine design. Even the cylinder stud spacings are the same and the GS head will drop straight on the Z motor. A mod that was popular in drag racing to take advantage of the GS's bigger valves until the 'J' motors ...
Author: zed1015
Sun Jan 05, 2020 11:43 pm
Forum: The Bottom Shed
Topic: Help for a mate 1200 Bandit carbs and pods set up
Replies: 3
Views: 214

Re: Help for a mate 1200 Bandit carbs and pods set up

CV carbs don't like running without still baffled air from the airbox. The separate intake pulses generated from using individual pods upsets the diaphragms giving uneven rough running. At the very least he needs dual pods which will help cancel out the uneven pulses between each pair of carbs to sm...
Author: zed1015
Sun Jan 05, 2020 11:53 am
Forum: Bike Help
Topic: mikuni main jets from z power
Replies: 1
Views: 144

Re: mikuni main jets from z power

As long as they are brass they should be ok.
Avoid plastic ones like the plague.

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