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Post by pistonguy on Oct 27, 2015 10:09:25 GMT -5
Nice addition for longevity,,I have been starting my 60mm BBK for a while now with no problems on stock stuff,,the battery is 3 years old  BTW-I could not find a video here  Cool the stock stuff doing the Job, But! Most likely the the Head did Not even maintain Stock Compression ratio. The mfg need's to idiot proof and offer a bolt on head. Compression ratio is Maybe the same or Most Likely Lower. These are All (present me one if you can find one) Stock Semi-Machined Casting's the mfg is using a cutter to Increase the Combustion Chamber to Match the Bore size.Thats the Second Angle towards the Outside of the Combustion Chamber. Ive Never seen in any other market were this is done, A Second Angel, What the heck is it for? Butcher job is all it is. Big Valves right? Big Valve's Dropped in Stock Size Seats This market segment is Not ready for Compression or Decent Cam's.  Here is a Bore Specific Head the way it should be.  And Another.  |
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Post by pistonguy on Oct 27, 2015 6:02:24 GMT -5
I see so Many of those on my dive trips in third world countries.
There Tires would be down to the cord riding on practically the sidewall.
You'll even see some Rentals that way, Gringo tourist's don't know any better.
RC's a Buckeye
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Post by pistonguy on Oct 26, 2015 16:41:18 GMT -5
You gotta do what ya gotta do sometimes and thats all good.
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Post by pistonguy on Oct 26, 2015 15:54:40 GMT -5
Well that explains why my 150 engine was leaking when I had it sitting in a box for so long it got moved around and was on it's side for a month or so took it out and saw some oil come out of the exhaust. Yup!  |
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Post by pistonguy on Oct 26, 2015 12:36:59 GMT -5
The Piston at Ambient Temperature is also .017 Smaller on the Ring lands than it is at the Bottom of Skirt 90Degrees from pin. Very easy once oil up in the cylinder to get past the top rings.  |
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Post by pistonguy on Oct 26, 2015 12:16:15 GMT -5
well again.. this is what he says.. but that if a bikes orientation is wrong.. (too much on its side and not straight up and down) that its not uncommon for oil to get into the engine... and that normally it doesn't cause big problems bc there is normally enough wear on the rings for the engine to work it out of the engine.. since mine is essentially new..and not worn enough.. the oil was trapped.. i know that a bike being on its side can be really hard to start afterwards.. and ive always assumed that it was from oil being able to get where it was not supposed to. sad thing is.. this all could have been avoided by just draining my oil... ba dum tis... Transport the Scoot Correctly. Easy wheel Chock can be made from 2X4's or old Pallet wood, 2 tie downs from Harbor freight |
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Post by pistonguy on Oct 26, 2015 12:12:47 GMT -5
so.. update.. more data to offer as well.. there was a build up of oil in my cylinder.. said he took the valve cover off and oil blasted out.. not just a little bit running out like normal.. but sprayed it out good. 2 days before I had this issue happen, I had a belt brake.. had a buddy take my bike on the back of his truck to the shop. well.. it wasn't strapped up, but leaned over a bit. mechanics suspicion is this allowed extra oil to get into the engine and since it only has a pump that blows into the engine but not back out, the oil was trapped and it built up pressure to where compression was too much for the starter motor. once the extra oil was removed, it starts on the old starter and the new kickstart i just added. le sigh.. new starter arrives today.. new bendix on thurs.. that i don't really need now. and if i paid mechanic prices for this guy, i wouldn't keep going to him. he is a good guy, and is very knowledgable, but definitely isn't 'new school' for anything. (not that a compression tool is new school) - he works on scooters for a living.. and if given time, he can diagnose anything.. his understandings of how everything work are great.. and his prices are fantastic.. this is the first time that i have stumped him this bad... The real thing to diagnose here would be WHY. I mean oil doesn't go into the cylinder normally. The Bike laid n its side for Who knows how long. Ive marke the Oil Ring scavenging holes, The Oil Ring is scavenging Excess Oil from the Cylinder and those Holes Drain Back the Oil to the Crank case. The Scoot on its side for ?? long will get oil up through those holes and through your ring End Gaps and the Cylinder.  |
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Post by pistonguy on Oct 26, 2015 9:14:55 GMT -5
so.. update.. more data to offer as well.. there was a build up of oil in my cylinder.. said he took the valve cover off and oil blasted out.. not just a little bit running out like normal.. but sprayed it out good. 2 days before I had this issue happen, I had a belt brake.. had a buddy take my bike on the back of his truck to the shop. well.. it wasn't strapped up, but leaned over a bit. mechanics suspicion is this allowed extra oil to get into the engine and since it only has a pump that blows into the engine but not back out, the oil was trapped and it built up pressure to where compression was too much for the starter motor. once the extra oil was removed, it starts on the old starter and the new kickstart i just added. le sigh.. new starter arrives today.. new bendix on thurs.. that i don't really need now. and if i paid mechanic prices for this guy, i wouldn't keep going to him. he is a good guy, and is very knowledgable, but definitely isn't 'new school' for anything. (not that a compression tool is new school) - he works on scooters for a living.. and if given time, he can diagnose anything.. his understandings of how everything work are great.. and his prices are fantastic.. this is the first time that i have stumped him this bad... Weel I'm Glad to hear it worked out for you |
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Post by pistonguy on Oct 26, 2015 8:38:12 GMT -5
I thought the EPA just passed a new regulation making it illegal to take a measurement, punishable by a fine of $5,000 and 6 months in jail. A joke, yes? Yes. Yes. Yes. Me and RC jackin with each other. |
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Post by pistonguy on Oct 24, 2015 16:46:36 GMT -5
I had similar problem with mine my compression was around 200psi after a bbk upgrade. The colder temps made it worse too. What weight oil are you using? I switched to a 5w4o synthetic and that seemed to help a bit too. Boom! Data Now were talkin |
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Post by pistonguy on Oct 24, 2015 10:31:55 GMT -5
C'mon.... No Data (number) was provided to make a determination. Get the Data,... Fix it or Move on. Here some common gasket thicknesses. These are Two different Thickness Base gaskets  The Thin one Measures (Uncrushed) .022" that Twenty Two Thousands. The Thicker one is .032 thats Thirty Two Thousands. Difference of .010 Thats Ten Thousands.  The two base gasket are provide to make sure the Piston is at Zero Deck at TDC,.. Not .010 In The Hole to Maintain Stock Compression Ratio ?? The Cylinders can Be Not the same height and Most Likely to idiot Proof Tall. + .010.. Ten won't do that much to comp. if he got it wrong A common Head Gasket Measures (uncrushed) .010 thats Ten Thousands.  |
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Post by pistonguy on Oct 24, 2015 6:01:23 GMT -5
I am confused as heck. All this based on the belief of "too much compression", but no one has even bothered to screw in a compression gauge and see what the compression is ?? That's almost the first thing you should do when you have a mystery engine problem. This seems nuts to me. Get a new mechanic. Exactly!!!! peeps sending this guy down roads of taking things apart sticking in thicker head or base gaskets, starter's. etc Without Testing??? Holly Schmolly Test the Dmn Compression. Its Not going to Suddenly Gain Too Much. This wrench is suggestion this as he's positive it has Too much compression, but Wont test it? unreal. And everybody else, Test the Dmn compression. an Post the Picture of the results |
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Post by pistonguy on Oct 23, 2015 15:35:10 GMT -5
Your engine buddy who put this together that you considering too much compression and may need a Thicker Base gasket.
What was the Squish Clearance he set it up at?
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Post by pistonguy on Oct 23, 2015 15:29:26 GMT -5
Back way up. It Did start on the current system correct? and came to a dead Stop upon cvt or clutch work right? Too much Compression? How Much do you have? This is a Advertised 9:2-1  You buddy with the gas in the engine may be referring to Hydraulicimg the cylinder, with the plug out shed' Blow that Gas out the Hole and or You Crankcase is overfilled with gas. Sorry nada the plug out once would clearer this unlikely issue. |
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Post by pistonguy on Oct 19, 2015 20:12:43 GMT -5
That article has allot of what I said relating to Cylinder Finishes. not bad could give the kid few pointers tho. |
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