the all aussie dribble thread!

[Terry Syd]

Matt, if we get all this carb stuff sorted out, then our videos of our saws may impress them. - We'll just tell them it is the air in the Southern Hemisphere that makes the difference.

 

[koshari]

For crying out loud guys keep this carby talk to private messages. If any Americans read this they'll think that us Aussies are smart or sumfin...

took me ages to accept that carbys are as simple as they actually are, couple of verturis , a float and a slide.

but gees they look so complicated!

 

[MCW]

Matt, if we get all this carb stuff sorted out, then our videos of our saws may impress them. - We'll just tell them it is the air in the Southern Hemisphere that makes the difference.

It must be our high attitude, I mean altitude...

 

[MCW]

took me ages to accept that carbys are as simple as they actually are, couple of verturis , a float and a slide.

but gees they look so complicated!

Yep. If it don't work replace it or swear at it

 

[koshari]

Yep. If it don't work replace it or swear at it

most of my swearing recently was directed at the reed valve when i finally realised it was the culprit.

 

[MCW]

most of my swearing recently was directed at the reed valve when i finally realised it was the culprit.

Well at least you know what a reed valve is

 

[koshari]

Well at least you know what a reed valve is

bloody thing, hidden in that inlet port on the cylinder, pulled the top end down twice before i was advised to check it.

and lo and behold had a gap the thickness of a credit card between the petal and the base!

do the chainsaw engines have reed valves between the carb and the pot? iam yet to pull one down that far.

 

[AUSSIE1]

bloody thing, hidden in that inlet port on the cylinder, pulled the top end down twice before i was advised to check it.

and lo and behold had a gap the thickness of a credit card between the petal and the base!

do the chainsaw engines have reed valves between the carb and the pot? iam yet to pull one down that far.

Early saws ran them like my Canadien 220.

 

[David (saltas)]

Terry I like your clutch and break lever analogy. made me smile

My fix to the same issue was to place 1/2 dozen turns of plumbers Teflon tape under the mounts and then do them up tight.
Levers were firm and did not rattle but they moved if they got a decent impact. I never shared this trick with anyone, until now.
I never did break a lever

I raced flat track and enduro's

I did some road racing too "stay racing" singles twins and you. For those meetings I drilled weak points into the levers so I would not break the whole lever. But being a flat track kinda guy it was clutch in and hang onto the bars at all costs if it went bad

David

 

[Terry Syd]

Neat trick with the teflon tape. I heard of the hole drilling to prevent the loss of the entire lever, but I never did it. I did come up with another mod for the levers that I thought was 'trick'. I carefully bent the ends of the levers out in a parabolic sort of arc. This would naturally move my fingers to the ball end of the levers as I applied more force (leverage), keep my grip at the point of maximum strength and give me more movement of the lever.

I raced mostly desert and enduro bikes. Edit: Oh yeah, I did some flat track as well - I loved coming out of a turn full-lock with both feet on the pegs.

 

[Terry Syd]

For those who are interested in more discussion on POPs, I've gotten into a discussion on the strato thread with a fellow that has "designed small engine fuel systems for the last 10 years". Here's the link - http://www.arboristsite.com/saw-building-101/107976-12.htm#post3068952

 

[billyj]

yep heard of the old teflon tape trick, also used to put a hacksaw cut 2/3 the way through the lever close to the ball so that it have a weak spot there saving most of the lever in the event of a crash

 

[AUSSIE1]

I would run a loose perch and short levers. I'd brake with one digit and clutch with two. My levers were pretty low.

 

[Terry Syd]

Sounds like plenty of former bike racers in the chainsaw scene. Somebody should bring a couple of old farmbikes to the GTG, set up a track and see who can still throw the iron around.

 

[tdi-rick]

I
[snip]

I read of guys on the forum that can get good throttle response if they open up the Low speed needle a bit, however it makes the idle too rich and the saw will load up. Guess what - that's a different problem.

You can fix that problem by taking a small rattail file and filing a small divet in the throttle plate OPPOSITE the side where the idle hole is. That will allow more air to pass the throttle plate at idle, which leans out the idle. You then have to open up the Low speed needle to get the mixture right. Of course, the idle will now be a bit too high, so you turn down the idle screw. Now the engine idles perfectly.

The result is that the idle has a proper fuel mixture that won't load up the engine. When you open the throttle, the butterfly will move across the premix orifices and will pull in extra fuel since you have opened up the Low speed needle. Now you have both a snappy response and a perfect idle.

Hey ! that was my fix on my kart HL Tillo's in 1987, and I had no idea what the hell i was doing, but it worked

 

[tdi-rick]

Sounds like plenty of old bike racers in the chainsaw scene. Somebody should bring a couple of old farmbikes to the GTG, set up a track and see who can still throw the iron around.

Never raced bikes, hardly ever rode them so i'd kill myself, but I can bring my MTB


Hmm, might use the thread tape trick on the MTB.
Everythings exxy these days and carbon bars break instead of bending, although the levers are designed to 'pop'......

 

[AUSSIE1]

Sounds like plenty of former bike racers in the chainsaw scene. Somebody should bring a couple of old farmbikes to the GTG, set up a track and see who can still throw the iron around.

I'd be in that for sure! :msp_thumbup:

 

[AUSSIE1]

Fuggen ell, popped the back window out of the GUte today! ####!

 

[Terry Syd]

Yeah, it's hard for former racers to not pass on something like that. I could see me taping myself up, putting on a couple of back braces, loading up on analgesics, lying to the wife about what I was going to do - and then just get it on!

 

[AUSSIE1]

Hedy Rick, see the 2 stroke oil in the diesel fuel threads getting around the 4wd forums? (been happening for the last couple of years by the looks of things but only noticed)