Wildturkey
New Member
- Local time
- 10:16 AM
- Joined
- Apr 6, 2011
- Messages
- 12
I have a Rock Solid 70. 300kms on it now and it refuses to 2 stroke?
I have tried several diffent carby/jet/air cleaner combinations. All the adjustments I make will not let it 2 stroke up high. At times the low to mid range is impressive. Though the bloody thing will not sing up the top end?
The only way I can make it run to its potential is to turn the fuel off. Then the moment before it runs dry it goes like a stabbed rat, screaming 2 stroke the way it should. Only for a second or 2. So I guess I can not get it lean enough on the main. I have tried all sorts of jets???
I have tried a .80 jet down to the jet out of a stock 50? Running many different fuels and ratios.... no luck? Straight caster oil at 20:1 all the way through to TTS at 32:1. Still will not 2 stroke???
I have match ported the exhaust and opened up the inlet port a little while match porting to the very short inlet manifold I have made as my frame is very small. Yes the inlet tract is sealed. I am a qualified mechanic and have built 24 hour winning race cars. So I have some idea. I have worked on all sorts of engines for over 25 years and no engine has bothered me like this one.
I wanted to run a SBP expansion exhaust I have along with a shaved head I have had luck with in the past. I wanted to hear this thing run well before changing to much stuff.
What the **** is wrong with this thing???
I have tried several diffent carby/jet/air cleaner combinations. All the adjustments I make will not let it 2 stroke up high. At times the low to mid range is impressive. Though the bloody thing will not sing up the top end?
The only way I can make it run to its potential is to turn the fuel off. Then the moment before it runs dry it goes like a stabbed rat, screaming 2 stroke the way it should. Only for a second or 2. So I guess I can not get it lean enough on the main. I have tried all sorts of jets???
I have tried a .80 jet down to the jet out of a stock 50? Running many different fuels and ratios.... no luck? Straight caster oil at 20:1 all the way through to TTS at 32:1. Still will not 2 stroke???
I have match ported the exhaust and opened up the inlet port a little while match porting to the very short inlet manifold I have made as my frame is very small. Yes the inlet tract is sealed. I am a qualified mechanic and have built 24 hour winning race cars. So I have some idea. I have worked on all sorts of engines for over 25 years and no engine has bothered me like this one.
I wanted to run a SBP expansion exhaust I have along with a shaved head I have had luck with in the past. I wanted to hear this thing run well before changing to much stuff.
What the **** is wrong with this thing???
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