#21
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The leaking base gasket could have been the reason. At least I really hope that.
If you are not sure about the sound due to the fact its your first two stroke I recommend you to do what I did. I asked a two stroke nerd to listen how my bike sounded and he gave me good advice how to detect possible errors in jetting. Though this was many years ago I am still grateful. I really keep my fingers crossed for you. |
#22
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Ok so rebulid is done. Pressure test is good now after some gasket sealer with the base gasket. It held 6psi solid for 10 minutes. Sprayed water all around the base of the cylinder and left side crank seal since I already had the flywheel off and no bubbles.
I reinstalled the stock pipe and my turbine core 2.1 silencer. I am using the stock head which in my case is the gp head since that was what came on my bike when I bought it used. Reset my jetting back to stock 42p A/S 1.5 N1EF needle at #3 175 main jet Rode around in my parking lot since I was jot able to get to the OHV park today. Had to take my dog to the vet First impressions, pilot is too rich but the needle is slightly lean around 1/3 to 1/2 throttle and main is too rich. It will sputter at WOT. Here is two videos of cruising around, let me know if that sounds right to you https://youtu.be/cfMVjM9BCQw https://youtu.be/vi1GraiXyZY |
#23
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Quote:
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#24
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Where was the base gasket leaking? I always use some sealant at the front and back where the cases meet. Did the cases show any signs of leaking on disassembly?
By timing, I was suggesting that the flywheel was retained properly and woodruf key not sheared, etc. |
#25
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Quote:
When I pulled the jug the base gasket was damp and torn at the rear. After the rebuild the rear was where the leak was coming from until I reassembled with some sealant. |
#26
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Went to 1.75 on the a/s and raised the needle 1 position to richen it up. It feels better but still doesnt sound right to me.
https://youtu.be/A-OFq-ObXPk |
#27
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in the clip it says you have needle at clip #4? why so high/rich? this is not standard setting. |
#28
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What temp and altitude are you running at?
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#29
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As per my last post, what temps, altitude and humidity are you running at? |
#30
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Where I live is 15 feet above sea level, where I ride 80% of the time is 500 to 2500 feet. Temp was about 60 F with 70% humidity.
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