ESE's works engine tuner

[F5 Dave]

If you can get to the tube slide a section of nail in it in case you start to crush it. Leave a section of nail exposed for extraction.

[wobbly]

I have removed the PJ in that carb by clamping s piece of square steel in the vise, hold the PJ end square on the bar, and tap the body directly next to the pressed in ball.
The PJ tube and the ball easily came out doing this.

[wobbly]

Neels is still locked out - nothing has changed, the connection request times out.

[husaberg]

Neels is still locked out - nothing has changed, the connection request times out.

for clarity of the admins and mods
Neels is KB username Vannik
https://www.kiwibiker.co.nz/forums/m...p/34343-Vannik

[TZ350]

.


Suggestions needed.

My good old new triple exhaust port methanol burning Kawasaki F81M 250 is suffering a serious bout of rough running around 8,000rpm.

Not a problem with the single exhaust port cylinder but a real issue with the tripple.

Things I have tried:-
Swapped out the Suzuki piston with the cutaway sides for a full skirt Wiseco one.
Reverted from my petrol/methanol carb setup back to a 100% methanol one.
Tried it with and without power jet.
Tried extreme richer and leaner main jetting. Jetting that makes best power also colours the plug and head. I would expect it to be clean.
Tried straight line ignition settings all the way from 5deg to 30deg BTDC. Over advanced can cause a patch of rough running.
Replaced the "R" retracted gap plug with a normal cold exposed tip one.
Tried plug gap settings from 010" to 030".
The coil is something that should be capable of throwing an arc across the room and welding heavy steel beams. Probably can create a spark underwater.
Both channels of the Race2 Ignitec discharge into the coil.
Checked that the Battery and generator can supply the ignitions current draw. About 4A at 10,000rpm.

Things that may be a problem:-
The scavenging stream is blowing the spark out.
The plug is slightly offset in the head and should be central.
Try it on petrol only. Although I want the methanol for cooling.

This was not an issue with the single exhaust port cylinder. The triple exhaust unit runs and sounds much better at 10,000 rpm than the single did.

Both my CHT and EGT gauges have chosen to go on the blink so not much help there.

Ideas???

[husaberg]

.


Suggestions needed.

My good old new triple exhaust port methanol burning Kawasaki F81M 250 is suffering a serious bout of rough running around 8,000rpm.

Not a problem with the single exhaust port cylinder but a real issue with the tripple.

Things I have tried:-
Swapped out the Suzuki piston with the cutaway sides for a full skirt Wiseco one.
Reverted from my petrol/methanol carb setup back to a 100% methanol one.
Tried it with and without power jet.
Tried extreme richer and leaner main jetting. Jetting that makes best power also colours the plug and head. I would expect it to be clean.
Tried straight line ignition settings all the way from 5deg to 30deg BTDC. Over advanced can cause a patch of rough running.
Replaced the "R" retracted gap plug with a normal cold exposed tip one.
Tried plug gap settings from 010" to 030".
The coil is something that should be capable of throwing an arc across the room and welding heavy steel beams. Probably can create a spark underwater.
Both channels of the Race2 Ignitec discharge into the coil.
Checked that the Battery and generator can supply the ignitions current draw. About 4A at 10,000rpm.

Things that may be a problem:-
The scavenging stream is blowing the spark out.
The plug is slightly offset in the head and should be central.
Try it on petrol only. Although I want the methanol for cooling.

This was not an issue with the single exhaust port cylinder. The triple exhaust unit runs and sounds much better at 10,000 rpm than the single did.

Both my CHT and EGT gauges have chosen to go on the blink so not much help there.

Ideas???

Put a longer carb bellmouth stack or lengthen the intake to see if it shifs the rpm where it turns to shit.
Quick and easy, if its not that move on.
https://www.kiwibiker.co.nz/forums/a...0&d=1322903746

[jonny quest]

TZ350, I just looked at your triple exhaust port shape.

I think you are having short circuit problems. This is showing an extreme case I've never seen, but it typically shows up in your area of dyno curve.

Fill in the bottom of those sub exhaust with epoxy, and hope you can make a quick dyno run before it blows out and see what happens

By bottom, I mean just the area that is inline with A port