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Author Topic: APS/G 250 2 Stroke in the Land of Oz  (Read 36155 times)

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Offline Old Scrambler

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Re: APS/G 250 2 Stroke in the Land of Oz
« Reply #120 on: November 12, 2013, 04:17:40 PM »
Inspiring for some..................Tom, it must be the OFF-season........as in bug spray :-D
2011 AMA Record - 250cc M-PG TRIUMPH Tiger Cub - 82.5 mph
2013 AMA Record - 250cc MPS-PG TRIUMPH Tiger Cub - 88.7 mph
2018 AMA Record - 750cc M-CG HONDA CB750 sohc - 136.6 mph
2018 AMA Record - 750cc MPS-CG HONDA CB750 sohc - 143.005 mph
2018 AMA Record - 750cc M-CF HONDA CB750 sohc - 139.85 mph
2018 AMA Record - 750cc MPS-CF HONDA CB750 sohc - 144.2025 mph

Chassis Builder / Tuner: Dave Murre

Offline Koncretekid

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Re: APS/G 250 2 Stroke in the Land of Oz
« Reply #121 on: November 12, 2013, 07:40:20 PM »
Dennis,
I hope we never grow too old to laugh!
Tom
We get too soon oldt, and too late schmart!
Life's uncertain - eat dessert first!

Offline SaltPeter

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Re: APS/G 250 2 Stroke in the Land of Oz
« Reply #122 on: November 12, 2013, 08:43:35 PM »
I thought it appropriate at this time to post this link the the video that, no doubt, inspired Pete to get into two strokes.
http://www.youtube.com/watch?v=MqJVlS37J74

I wasn't inspired by it I got paid to do it  :evil:

Pete  :cheers:
The Mission is to go as fast as possible along on that old Road Less Traveled.

Offline SaltPeter

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Re: APS/G 250 2 Stroke in the Land of Oz
« Reply #123 on: November 29, 2013, 11:44:01 PM »
I have these 38mm Lectrons that will be going on the Ported Engine,

On the current Engine I run the Stock 34mm Mikuni’s, and I needed to get the Lectrons to open fully. Well I did it without changing all and sundry with a little packing.




And they fit nicely on the Bike,




I did find a problem with the Intakes I made for them, had a leak between the Intakes and these Reed Valve Blocks



and needed a bit of sealing.

Once I sorted that out, it did not take much to get it running evenly on both cylinders, the way Lectron set them up for me was pretty close,

Just 1/4 turn out (leaner) on the Metering Rod on the Left Hand Carb and the low to mid range is sweet.

I won't be running them in Feb, I just wanted to make sure they did work on my Bike and I am pretty impressed.

Once I sealed the Leaky Intakes, it took about 20 mins to get the Bike running with pretty even EGT's.

To do this on the Stock RGV OEM Mikuni's takes hours!!

So now off they come and I'll put everything back together and wait for Feb, not long now.

Pete  :cheers:
 

« Last Edit: November 29, 2013, 11:46:34 PM by SaltPeter »
The Mission is to go as fast as possible along on that old Road Less Traveled.

Offline tauruck

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Re: APS/G 250 2 Stroke in the Land of Oz
« Reply #124 on: November 30, 2013, 05:22:02 AM »
Pete, nothing like a slide carb. Any two stroke nut's wet dream. I know the Tillotsen slides and they really take the guess work out of the equation.



I wanted to ask if you can get Carbon reeds for that block?. I know guys that changed over and it was better due to the reduced flutter.

Me? :-D, I'd take the Lectrons along with me in Feb.

It's looking good man.

Offline SaltPeter

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Re: APS/G 250 2 Stroke in the Land of Oz
« Reply #125 on: November 30, 2013, 09:19:38 PM »
Thanks Mike

It seems that Suzuki really did their home work with the RGV Reed System.

No one that have been developing these engines over the years found any gain to be had using after market Reed Petals.

I think the earlier design Reed Valve 2 strokes that were virtually Piston Port induction with a Reed Valve located in the Intake Port
located on the Cylinder really did benefit from upgraded Reeds.

The RGV is a Crankcase Induction Reed Valve Engine that had a Factory Upgrade Kit available for it.

If that "Kit" was fitted the RGV could rev to 12000 rpm and this used the Standard Reed set up.

That sort of Revs is about the limit for these Road Bike engines, unlike the purpose Built Racing TZ Yam's and RS Honda's that are designed to rev higher.

The thing is to have Reed Petals as one of those Replacement bits in the "Maintenance Schedule", you know those basic 2 stroke things like Pistons  :-D

I have to do a bit more Lectron tuning yet, I hope to get a chance to do a back to back Dyno Test, but not this year.

Pete  :cheers:


The Mission is to go as fast as possible along on that old Road Less Traveled.

Offline SaltPeter

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Re: APS/G 250 2 Stroke in the Land of Oz
« Reply #126 on: December 04, 2013, 01:12:25 AM »
Here is the Start up with the Lectrons fitted

http://www.youtube.com/watch?v=e8Cm75q2udA


Pete :cheers:
The Mission is to go as fast as possible along on that old Road Less Traveled.