ESE's works engine tuner

[husaberg]

I haven't tried the air-driven variety of the ebay dental tools yet, sounds like they hold up better than the electric version that just crumble in your hands...

Back on the dyno!... And the struggle continues...
https://www.youtube.com/watch?v=B9b2RutjK7U

https://www.youtube.com/watch?v=B9b2RutjK7U

I enjoyed the video.
Are the engine mounts a tight fit with their bolts? and done up tight? Is the carb intake rubber soft?
Pretty sure a few had suggested 70% BF.
You can take some weight out and subsitute some alloy bungs on the light side if you have run out of area to put in Tungsten on the otherr side
You will lose crank inertia, but getting the BF factor right right be worth it for now.

[adegnes]

I enjoyed the video.
Are the engine mounts a tight fit with their bolts? and done up tight? Is the carb intake rubber soft?
Pretty sure a few had suggested 70% BF.
You can take some weight out and subsitute some alloy bungs on the light side if you have run out of area to put in Tungsten on the otherr side
You will lose crank inertia, but getting the BF factor right right be worth it for now.

Thanks!
There is a very small amount of play in the mounts cause of how they are designed. Maybe I should redo those with proper bushings before I continue, to take them out of the equation.
The carb rubber is soft.

[TZ350]

Page .... 1920

Stuffing two strokes. This is a collection of must see videos. https://www.youtube.com/channel/UCHR...dp-Bi1-w11R7WQ

Guru, AMA tech inspector, and probably the best technical editor who ever wrote

Attachment 326831Attachment 326832Attachment 326833Attachment 326834Attachment 326835Attachment 326836

A great thread devoted to Kevin Cameron, worth a visit.

Enough motivation to stop procrastinating on the installation of a deto sensor. With a diameter of about 20mm at the mating side I am asking myself where to put it ideally (and where not to put it). As I run a paper gasket, I suppose somewhere on the water cooled cylinder would be nice, but there is not enough space available, except "on a stick" on one of the bolting areas for the head cover. Where du you guys put yours?

Attachment 294192 Attachment 294193

Attachment 294223

http://www.ebay.com/itm/Knock-gauge-...e9e926&vxp=mtr

Attachment 286854Attachment 286853

Det Sensor

Follow the links back for more details.

[JanBros]

I always dyno my moped engine with locked variator, so I dyno only the engine without the influence of the vario.
then I dyno it with the vario to get the best out of the vario.

[adegnes]

I always dyno my moped engine with locked variator, so I dyno only the engine without the influence of the vario.
then I dyno it with the vario to get the best out of the vario.

That's the way to do it!
I plan on making a fixed pulley setup for the purpose.

[DaisyB]

Anyone know where I can buy a lock-out kit for the auto? Gillera Runner (125/180) and Piaggio Zip. Very time poor at the moment (not exactly cash rich either!) so no chance to make. Thanks

[Frits Overmars]

Anyone know where I can buy a lock-out kit for the auto? Gillera Runner (125/180) and Piaggio Zip. Very time poor at the moment (not exactly cash rich either!) so no chance to make. Thanks

You can try info@hvg-engineering.com. The vario lock-out kits are not mentioned on the regular hvg-engineering.com website but I know they are available.

There is a very small amount of play in the mounts cause of how they are designed. Maybe I should redo those with proper bushings before I continue, to take them out of the equation. The carb rubber is soft.

If you fit a proper vario lock-out kit with a toothed belt instead of a V-belt, you will have far less transmission losses and you can temporarily tighten the engine mounts.
Did you balance your crankshaft with the inlet disk mounted?

[adegnes]

Did you balance your crankshaft with the inlet disk mounted?

You know the answer to that Frits... I've just written it's effect off as insignificant, which it probably isn't.

I'll start on the propper bushing mounts, and see what I can do about a lock out kit.

[wobbly]

I wont say that increasing the BF ( beyond where it is now ) is the fix for your vibe issues but I believe suggesting 70% is wrong.
A lightweight VERTICAL cylinder needs around 58% - going the other way a horizontal axis needs down at 35%.
A vertical Manx at 80% is a special case that just proves the point.
Every engine /chassis is a resonant system, and they each react differently, but in all cases the basic idea is to reduce the vertical bar shake symptom.
Technically your engine with its angled axis should react favorably to a BF closer to 50%,but the fuel frothing thing seems to be created by a combination
of factors not even being considered at this point.

[adegnes]

the fuel frothing thing seems to be created by a combination
of factors not even being considered at this point.

Probably.
I'm starting at the engine mounts, eliminating the slight play and introducing some dampening with rubber/plastic bushings.
Suggestions are welcome!

[dark art]

Probably.
I'm starting at the engine mounts, eliminating the slight play and introducing some dampening with rubber/plastic bushings.
Suggestions are welcome!

Bearings might work but may make the chassis vibrate much more.

I´ve seen recently a moped like that and it had a lower mounted spring to counter the engine belt pulling force, that mechanism may be guided to avoid side play and be rubber mounted for better isolation. The moped in question had only 2 mount points to hold the engine in the frame, the top one, wich pivots the engine to do the variator thing and the spring to counter force the drive belt. Is the same system as your bike?

[adegnes]

Bearings might work but may make the chassis vibrate much more.

I´ve seen recently a moped like that and it had a lower mounted spring to counter the engine belt pulling force, that mechanism may be guided to avoid side play and be rubber mounted for better isolation. The moped in question had only 2 mount points to hold the engine in the frame, the top one, wich pivots the engine to do the variator thing and the spring to counter force the drive belt. Is the same system as your bike?

Bearings could work!

That's how the stock setup works on these bikes.
My "parallelogram" mount has two mounting points and the engine is moving in a more linear fashion. This has the advantage of more rigidity, and no need for flexible parts/ball joint in the pipe.

[richban]

Well the 300 used to look like this 3 days ago. Now its in a sad state a little like me. Big big crash. On a plus they were all going very well. With Glen securing pole, a win and a lap record. Race 2 was stopped due to me going over the bars.

[FastFred]

.

An interesting read:- http://forums.everything2stroke.com/...he-Shop/page45

[mr bucketracer]

Well the 300 used to look like this 3 days ago. Now its in a sad state a little like me. Big big crash. On a plus they were all going very well. With Glen securing pole, a win and a lap record. Race 2 was stopped due to me going over the bars.

how good are the new pipes on bike? Looks like you finished race 2 ..what's happening?