ESE's works engine tuner

[andreas]

Thanks Wobbly, I think it's a 120/70 right now. Less profile will help?

[wobbly]

Stay at 120 but lower the section height , this keeps the grip , lowers the front and puts more weight transfer into the front tyre when turning in.

[andreas]

Ok, I understand this will reduce the trail. It respond quickly but just needs a lot of counter steering or leaning out.

[husaberg]

https://books.google.co.nz/books?id=...page&q&f=false

[andreas]

https://books.google.co.nz/books?id=...page&q&f=false

Thanks Husa.

[TZ350]

Thanks to everyone for the helpful suggestions, they all made sense.



I have now modified the air correction and idle air on the carb with replaceable jets to make it easier to find the optimum air correction. I also now have a programmable digital ignition so I can bend the ignition curve for a bit of drive out of the corners and pipe heating for over rev.

Once I get the ignition installed I will get it on the dyno to see what the effect is and if I can duplicate the Red line in the over rev area.
.

[speedpro]

A combination of the power curves will be nice, the good bits of course.

[TZ350]

A combination of the power curves will be nice, the good bits of course.

Yes. Going to see what can be done. I am currently converting a Chinese magneto thing to a generator to power the programable ignition. Basically it will be just a push and go system. No battery just generator, voltage rectifier/regulator, capacitor and DC-CDI programable ignition that creates its own CDI charge from the 12V DC power supply.

Making a decent ignition from a Chinese aftermarket thing:- https://www.kiwibiker.co.nz/forums/s...post1131033289

[Muhr]

Hey all! Bought a chainsaw today. wanted double the price if I would get one with 3hp instead of 2hp. started it and did not feel so fun, maybe I can fix it a bit (did I sketch on an exhaust) ... Are there any here who have fumbled with chainsaws? Also had carburetor lying around. It's a 35cc.

[F5 Dave]

I'd tune it for max power ignoring the fact if what it has to interface into.

I'm a bit stupid that way.

Can you put a clutch on it to fan the revs up a bit?

[TZ350]

2 Stroke Stuffing.

[pete376403]

Something like this?

[lohring]

Hey all! Bought a chainsaw today. wanted double the price if I would get one with 3hp instead of 2hp. started it and did not feel so fun, maybe I can fix it a bit (did I sketch on an exhaust) ... Are there any here who have fumbled with chainsaws? Also had carburetor lying around. It's a 35cc.

We modified a 35 cc race engine to give almost 12 hp. We changed to a high rpm pipe and lost 2 hp but could run the engine to its mechanical limit around 23,000 rpm. See https://www.modelgasboats.com/magazi...-record-engine for the details of our testing and modifications.

Lohring Miller

[Muhr]

The stuff is not the most robust on the market so it will not be any 15000k, but what can you expect for 300 €. Exhaust, I think it should get at least. Was out and used it today and it is quite weak. Disassembled it when I was done outdoors. The port geometry and engine design are almost made to be able to adjust (or not) ..
If I manage to squeeze out 3-4 hp, I am more than happy

[jonny quest]

The stuff is not the most robust on the market so it will not be any 15000k, but what can you expect for 300 €. Exhaust, I think it should get at least. Was out and used it today and it is quite weak. Disassembled it when I was done outdoors. The port geometry and engine design are almost made to be able to adjust (or not) ..
If I manage to squeeze out 3-4 hp, I am more than happy

Tighten up squish and raise compression, raise ports back up to where they were, a little more intake area... and that's it.

A full expansion chamber you'll need to rev it more, and I don't think you'll have as widen of a powerband without a lot of pipe development. The stock cans on engines like this are really good for the powerband they need to run in.