Bucket update

[Ivan]

I lenghtened it to fit a bigger carb into the engine,
With the standered mounting you cant fit a big carb with this you fit a big carb with ease as it hangs out the back and raises the height a tad,

At the mo im running standered carb again as my throttle cableis to short.
Its quite a basic idea

[Buddha#81:Me]

Tunnelled rammed AX100. Victor Bray would be sooooo proud of you.

[Skunk]

I've fitted a 28mm flatslide to mine and hardly changed a thing.

Also the step in size from the carb size to the 'tunnel' will stuff up the airflow big time; not to mention the fact that the airflow 'signal' from the engine will be late and weak.

[speedpro]

I lenghtened it to fit a bigger carb into the engine,
With the standered mounting you cant fit a big carb with this you fit a big carb with ease as it hangs out the back and raises the height a tad,

At the mo im running standered carb again as my throttle cableis to short.
Its quite a basic idea

I used to have a TS100/125 engine with a small alloy adaptor bolted to the original carb mounting bit on the barrel. I then used a piece of radiator hose to mount a 32mm round slide Mukuni to that. All up it probably added about 20mm to the intake length. How big a carb are you trying to fit????

Regarding the extended length - I've tried that out. It doesn't work. If it's long enough, you get all sorts of funny harmonics happening at different revs which make it go real hard or real weak. You need the carb as close to the port as possible. The other thing is I notice that the case reed has been blocked. If you do that you need to extend the piston port timing to compensate as the reed valve allows extended gas flow after the piston port closes at certain(higher) revs. It is worth getting rid of the reed valve as it allows a nice intake port if it is all devconned up properly. The problem is it looks like the piston port is a single big hole rather than a bridged port. That is going to cause problems with piston cracking due to a lack of support if you rev it much.

[Ivan]

Nope the reed isnt blocked up I just took it out to polish that port,
I still am running one. I wont get rid of it unless I have aspare barrel so then I can always go back to stock.

Yeah the tunnel has been used before I got it from RG with a box of TF bits,
and its ment to work we had the engine running and it worked fine but Im not using it at the momment any way im still using standered carb.


The carb I am trying to run is off a old RM80 its identical to your carb.

[Expert]

Anybody know when buckets will start again in the Auckland area?
I know i asked before but nobody replied.

As promised, classic bucket!!

Classic bucket video worth a look!

[Ivan]

Nice one, haha
What is that bike looks like it needs a bit of TLC

[Expert]

TLC? That bitch doesn't respond to TLC!!
Treat them mean, keep them keen!

[Ivan]

haha, sounds fun you wai ttill those crsitchurch KBr's see it youl be hearing it

I cant watch the video to it I can hear it but there is no vid


I did hear a lock up tho and what sounds like a wheelstand

[Expert]

just get quicktime its a .mov file.

free download http://www.apple.com/quicktime/download/win.html

just click the box without itunes

[Ivan]

I got quicktime the latest version.


DOnt know whats happening?

[Skunk]

As promised, classic bucket!!

Classic bucket video worth a look!

Haha, looks like fun!

[Ivan]

Ok so my pipe is now done and is alot better it now hides under the frame,

Heres some pics they are still ok considering I took them in the dark haha


Now from what I know it is a YZ 80 chamber correct me if Im wrong,
May actually be a TF pipe

Note the fuel leak it is ok

I test rode it today no exhaust dragging yet!
NowI have to sort some shit out because the jetting has got stuffed up from it

[speedpro]

That pipe needs to be about 30cm longer, just guessing. I'd put about 10cm into the header and the other 20cm into the mid section. Unless of course that motor will pull 14,000rpm??

[Ivan]

darn,


Why is that?

What affects will I find with it as is?