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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 rcq92130 on Oct 23, 2015 18:43:41 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. |
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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 lain on Oct 24, 2015 7:01:04 GMT -5
I was assuming he used a tester and that's how he came to the conclusion that he had too much compression, and the starter was a byproduct of it. Either way, high compression or not he should still be able to start his scooter.
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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 scootdoggydog on Oct 24, 2015 15:54:54 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.
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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 rcq92130 on Oct 24, 2015 17:35:02 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 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. |
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Post by tvnacman on Oct 24, 2015 18:26:07 GMT -5
I say pull the spark plug wire off and see if it cranks better.
John
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Post by lain on Oct 26, 2015 7:30:01 GMT -5
Boom! Data Now were talkin 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? |
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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 freespirit on Oct 26, 2015 9:07:36 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...
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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 lain on Oct 26, 2015 9:59:19 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. |
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Post by freespirit on Oct 26, 2015 10:35:10 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...
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