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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc. |
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#1
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Piston photos at 4,000 miles
These images are from my 4th rebuild on my Gas Gas 300. I reused original Base and Head O rings all four rebuilds. The Oil I used was full synthetic Penzoil TCW mixed 40 to 1. Could not beleive the Good results of the oil. I recently won $500 worth of Amsoil, I am hoping to have the same results or better. Power valves had a low amount of carbon, the piston and cylinder looked like new. The Penzoil TCW was only $20 dollars a gallon opposed to $40 a gallon of Amsoil.
Lance Larsson |
#2
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Quote:
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2002 Gasgas EC250 (gone not forgotten) 2012 Ktm 300xc 2001 Gasgas EC300 Lifes journey is not to arrive safely at the grave in a well preserved body, But rather to skid in sideways totally worn out shouting holy cow what a ride !!!! |
#3
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Looks like you were getting some blowby past the inner oring and if you head is that clean with zero soot your prob jetted pig rich.
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#4
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Moved the thread to the 2-stroke section.
Why reuse old o-rings and gaskets? Bad practice. If your going through the trouble of doing a top end use new parts. Your photos are of the top of a new piston. Show the old one. Amsoil Dominator is great oil, been using it for years. |
#5
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Ohh in the case this is just a new pistion thats horrible. I have 300+ hours on my stock piston. It needs a new one for next season but still. You should never re-use gaskets or O-rings like said before.
Amsoil dominator is the best money can buy. Works like it should.
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2002 Gasgas EC250 (gone not forgotten) 2012 Ktm 300xc 2001 Gasgas EC300 Lifes journey is not to arrive safely at the grave in a well preserved body, But rather to skid in sideways totally worn out shouting holy cow what a ride !!!! |
#6
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Thank you for moving the thread
Yes this is the honest to God photos from my piston and head with 4000 miles on it.That is why I took the photos. I knew no one would believe me.pennzoil marine tc-w3 100% synthetic -biodegradable ashless oil.It is not recommended nor do I recomend it for your bike.But the photos are the results from that oil.My jetting at 600- 1000 ft is 40 pilot n1eg 2clip 178 main ,2004 300 GASGAS bike has never seen pemium gas . When I use to race I ran the "A class "for about 10years so I am not too slow or easy on the bike.I do not recomend reusing old gaskets. I am showing you my results.I am very cheap but growing up that way allowed me to have a full retirement at age 50. that year ,I rode my gasgas 265 days consecutive rain -sun and 16" of snow last day Jan 16 right through deer season no shots hit me. Just to set a record here for the boys to try and beat .This is in the Upper Peninsula Marquette Michigan Where we hold a National enduro most years
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#7
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Bull! You'd get deposits from the fuel even if the oil burnt perfectly which nothing does.
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#8
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You're right. I can see blow by past the O-rings. But, none on the piston???? Even a gas motor does not run that clean. |
#9
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Well I don't see why you would post false, especially since no one else initiated this post but I am skeptical also. Doing this stuff for a living I have seen propane engines similar but can't imagine how lean that would have to be to stay that clean being 2 stroke. But if true, I would say you are doing something right
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jeff '00 XC250 (mine) LTS front and rear suspension, power valve cover, carb jet kit and rear chain glide, RB Designs head mod, BRP tall triple clamp, backyard foot-peg lowering conversion. '04 EC250 (the kids) (he can do his own mods haha!) |
#10
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I am not a liar or a bragger ,believe what you want ,just stating a fact. Lance
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