My GT 750 cafe project

Daventry.
It took me a wile to sort it out. First I was going through all these forums trying to find out the best combination, but nothing was working.
What I did and recommend is taking it to a dyno testing. I had silly pilot jets like 42.5 and the guy said you don't mess with mains. Basicly he did all these tests, vacuum, cylinder pressure, and found out that the people who rebuilt my engine got the cam timing off, so that was why the idle was a mess, and the ride as well.
He sort that out, put some K&N filters because the Chinese ones run either to rich or to lean, never correctly, put everything back to standard in terms of screw size and just went a bit high on main.
So main jet 140, pilot 32.5

After an outside winter my head gasket froze and now when I start the bike it is "coughing" from one of the cylinders.

Need to repair it, but haven't had the time.

Thanks MagicFlea.

I'll have a little tinker around and it that doesn't work I'll just take it to the mechanic.

I keep hearing the Chinese air filters are rubbish, and you've confirmed that so I'll grab a set of K&Ns. Did you use extenders?

I didn't because they would not fit the gap between the carbs and the frame if I did, but again, the best thing to do is try to ask someone that knows what they are doing.
The K&N I got where the oval ones, absolute brilliant.
But I do recommend you have a tinker about, I had loads of fun doing so, although my backyard smelled like gasoline all the time. But if you don't it's not your project anymore, you can't say "Yeah, I did that"
Where you from Dave if I may ask. I might be able to recommend you a place to go to do some custom stuff. The people that did my seat where great as well, they said it would cost me around 180 and in the end they did it for 98.

Thanks MagicFlea.

I keep hearing about how fiddly carbs and jetting can be, but you're right – if I don't at least have a go then it's not a real project.

I'm going to grab a set of the 4 K&N ovals. I've attached an image of the pods I believe you're talking about. That's right, isn't it? Oval, 54mm with Chrome End caps.

I love what you've done with the seat. I've done a lot of research on creating custom seats. Dime City cycles have a good youtube video on creating a fibreglass mould from scratch. However, I'm leaning towards your method of reupholstering the original fitting. Less work means I'll have it on the road sooner.

As for my location, I'm in Sydney.

These might give you some ideas or answer some questions...

kzrider.com/forum/11-projects/206149-freshening-up

vimeo.com/3306009

kzrider.com/forum/5-chassis/171984-ghett...brew-rearsets#171984

Hey Magicflea,

I recently got myself a gt750 cafe racer and the slim old bit of foam for a seat has got me walking a bit rough after a decent ride. That and i'm keen to have some space on the back to strap some kit down.
I was hoping you could point me in the direction of the upholstery place you used in London (where I live) and maybe a brief rundown on how you went about starting the modification of the original seat yourself. Would be much appreciated as I'm keen to enjoy a few long rides before the weather really turns in on us.

Cheers.