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Post by 180°off on Dec 18, 2015 17:27:25 GMT -5
Finally got my cpi POP together. I am currently trying to start it but no luck. Watched carb tuning vids, I have spark i have fuel and air. Compression seems ok but i do not have a way to check. When i check plug it is wet with gas so i believe i am running way to rich. Tried adjusting carb but no luck. Anyone got any good info for me? Or can you snap you fingers and make it run like a top? Any help appreciated Thanks. In the meantime I will be painting and sanding and painting body panels.
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Post by 90GTVert on Dec 18, 2015 19:28:39 GMT -5
Have you tried holding the throttle wide open while cranking? You may have just flooded it.
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Post by 190mech on Dec 18, 2015 19:42:49 GMT -5
As Brent said above,,Also a 2T will "wet foul" a plug and make it worthless,might try a clean/dry plug..
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Post by oldgeek on Dec 18, 2015 19:52:31 GMT -5
Just an idea, I bought a scooter once, tried to kick it for 30 min. Finally found the tank was full of mostly water.
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Post by Fox on Dec 18, 2015 22:38:58 GMT -5
Just an idea, I bought a scooter once, tried to kick it for 30 min. Finally found the tank was full of mostly water. Water in the gas. That would do it. Old stale gas that has been sitting untreated for 6 mos. or longer doesn't burn very well either.
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Post by 180°off on Dec 19, 2015 1:03:11 GMT -5
Clean gas. When I hold throttle wot it seems like it wants to kick over more that when not holding throttle. Wet plug, YES! Changed it and got another wet plug. My damn leg huts now, and I might be high from paint fumes. So if its running to rich then what? Get a smaller jet? I was really hoping to get it running, at least a second or 2. Oh well dont wanna rush it and mess something up even more I guess I will adjust mixture screws some more, and give my other leg a workout now.
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Post by tsimi on Dec 19, 2015 1:19:59 GMT -5
What's the carb size? Carb maker? What size is the main jet and pilot jet?
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Post by 190mech on Dec 19, 2015 5:32:36 GMT -5
Piston on right?Arrow down,windows up..
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Post by 180°off on Dec 19, 2015 18:15:51 GMT -5
stock 12mm carb i believe off of ebay. Yes arrow down. Almost messed that one up, but cought it right away. Going to try the original carb it came with even though it started oxidizing. Insides still look good. Maybe the compression isnt as good as I thought? I reamed the cylinder walls pretty good I thought. Minor and i mean very minor scratches. No gouges.
Hey 190mech, arent you coming to anderson for some unknown reason pretty soon? stop on by and Ill take you to are moped grave yard and 2 scrapyards where they have all sorts of moped stuff, sometimes.
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Post by 190mech on Dec 19, 2015 19:07:48 GMT -5
If youve installed the cylinder I sent,it was running when removed,had a bad top end bearing from a bent rod..Dont have any jobs up toward Anderson right now,but tomorrow is another day!
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Post by 180°off on Dec 19, 2015 20:57:27 GMT -5
Got a new wrist pin bearing. New piston and rings. Also got a cylinder from scrap yard that was better condition than yours except for rust. Maybe I will just swap everything out? If good compression in cylinder how hard would it be to kick start? Same as a 50 4t or harder?
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Post by Jwhood on Dec 19, 2015 21:00:54 GMT -5
Did you check your oil seals? My yamati i just sold only had 1300 miles and both oil seals were blown,no sealy no starty!!!; )
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Post by 190mech on Dec 19, 2015 21:02:47 GMT -5
Likely a bit harder as a 4T has a 'dead' stroke,when everything is right a 2T starts super easy,a few brisk kicks is all thats needed to start a cold motor..
PS,always wondered why we didnt have a pull start for 2T's just like the snow sleds do...
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Post by 180°off on Dec 26, 2015 10:43:44 GMT -5
So i rented a compression tester and got 120 psi. I think thats good enough for the engine to start? Or not?
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Post by 180°off on Dec 27, 2015 18:16:17 GMT -5
This damn thing will NOT Start!!! All I can think of is the oil seals like jwhood said. I dont know what else to do? Except buy a new engine witch i do not have money for. Saw a casing with crankshaft at scrap yard for 15 bucks, think maybei will go pick it up and see if that one is any better. Also will a vertical engine fit in my cpi? Saw one of those to.
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