Project X

[750ynot]

FANTASTIC!!!!!!!!!!!

[PaulD738]

Still got my colour tune, it must be 40yrs old now and works fine. An essential tool for setting up the carbs on the Z1300

[madforitkev]

Well that was a fun afternoon.

Can't beat a bit of old school tech !!!!

Long story short, but I was adding about twice the fuel I need. I know the test isn't a loaded test but it is a good indication.

Having got the mix (nice blue colour) right at about 2500, the idle was way to high because the burn had got better.

I couldn't get a it lower and found out it was because the oil pump arm I had grafted on the the butterfly arm in the TPS housing was just fouling a little bit and keeping the butterfiles about 1mm open and on a 46mm TB that's a fair bit of air!

So I need a quick tweak to the assembly then go again. I can basically reduce the whole fuel map by about 50% as a start point buy reducing the base fuel calculation.

Then try the different throttle settings again to get good burn at all the points then blend the map. I will make it a little rich to compensate for the off load testing.

The fly by wire throttle controller will also have to have its range reset as I only need about 30% butterfly opening to get 8500 revs on the big bodies. If I find the limited movement messes with the response curve too much I have a plan B and am looking at some tiger 800 bodies as an alternative.

All good fun!!

[madforitkev]

I've noticed in earlier posts that some of the images have become unlinked and all that shows is the file name now??

Anyone know a fix for this?

The last few weeks have been fixing a few minor reliability niggles around the throttle body controller and finishing off the mechanics for the ECU and main computer. I've done quite a few rides now and some manual dialing in on the fuel table but I have hit the limit on manual tuning, so need the dyno again.

So time to bite the bullet again.....

[Alan H]

I've noticed in earlier posts that some of the images have become unlinked and all that shows is the file name now??
Anyone know a fix for this?

Not noticed any Kev, the ones I looked at are ok on my tablet

[madforitkev]

Cheers Al,

I will put a bit more coal in the PC. That should fix it!!

[Alan H]

Tip top. Sod all this green crap - get some coil on!!!

[madforitkev]

I am going to try a new dyno this time....

http://www.doubletakemotorcycles.co.uk/

They are a bit more local to me.

Its hard to find anyone that does 2 strokes anymore ........

Anyone have any good experiences with other shops?

[Alan H]

There's one in Swinton near me in South Yorkshire - https://swintonmotorcycles.co.uk/ -, but never used them tbh, and of course there's Muttsnuts in Wetherby who specialises in two strokes - https://www.muttsnuts2strokes.co.uk/ - but a long way from darn sarf......
Might be worth a call?

[madforitkev]

Cheers Al,

I had a long talk with Dave at Mutts Nutts. Top bloke . I will have to get the old passport out and get up North I guess.

Looking forward to it!!