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Post by rapidrob on Jul 25, 2018 8:51:24 GMT -6
1. I would check the needle valve under the float arm. Make sure the arm is not bent too low never turning off the flow of gas when the carb bowl is full. There are photos on the web showing what it should look like when proper.
2. Make sure the needle valve is on the correct side of the float arm.
3. Check to see if the needle valve point is damaged.
4. Check to see if the needle valve seat is damaged or has rust etc in it.
Just some ideas to check.
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Post by rapidrob on Feb 5, 2018 14:30:05 GMT -6
Looks good.
Do you have a link to the vinyl supplier?
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Post by rapidrob on Feb 5, 2018 14:15:19 GMT -6
Having the motor rotor shaft end wear out in 1,000 miles ( how many starts?) is not normal.Even with no grease they should last for years with "normal" start times.
Lubing the end caps will help but only to a point.
If you still have all the receipts,I would contact the seller and see if there is a warranty or if they are aware of this short life problem? You have rights as a consumer you can exercise.
I would also check out your starting voltage. Make sure the replacement starter motor is the correct voltage. a 6 volt starter in a 12 volt system will have a very short life.
Also make sure the starter "Bendex" is not binding on the flywheel causing undo sideway force on the shaft.
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Post by rapidrob on Feb 5, 2018 13:40:27 GMT -6
Where the multi-ground terminal plug really shines is in low compression engines that foul the plugs and in old,worn out,oil burning(4-stroke) engines where the plugs are wet with oil.
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Post by rapidrob on Nov 27, 2017 11:59:56 GMT -6
Here is the same spark plug after a five mile wide open run.  |
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Post by rapidrob on Nov 27, 2017 11:12:25 GMT -6
I did the Lean Drop test again. 35 MPH and cut the ignition. Someone else told me to change the spark gap smaller than normal.Does that sound right?  |
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Post by rapidrob on Nov 24, 2017 17:36:40 GMT -6
The new Chinese cone air cleaner for the Dellorto showed up today. The engine has a deeper growl and engine response is much better. Top speed is still 35 mph. At my altitude and original exhaust, I'm probably at my max speed.
The bike will not climb a steep hill, the clutch just does not have the bite due to the lowering RPM.
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Post by rapidrob on Nov 10, 2017 18:15:03 GMT -6
HA! I had a Honda 50 Cub Dream in '66. I drove it and my girlfriend all over Maryland for hundreds of miles. I miss the bike.
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Post by rapidrob on Nov 7, 2017 9:17:29 GMT -6
I see that Treatland now has a re-machined NC50 head that has been milled out for the 70CC kitted bikes. Is there really a gain with this modified head?
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Post by rapidrob on Oct 30, 2017 16:11:36 GMT -6
OK. What about the slide? Should that be changed as well? Someone posted about the needle valve notches and where to place the valve. Would changing the needle valve height help?
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Post by rapidrob on Oct 30, 2017 7:40:41 GMT -6
I warmed up the bike with a two mile run. I did the Chop Test. The ceramic insulator is a dark brown. I'm running a 61 jet. Should I drop down to a 60 jet or go down two sizes?
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Post by rapidrob on Oct 20, 2017 14:45:46 GMT -6
I drove down to my mail box and let the bike idle while I got the mail. When I pulled away from the mail box the bike acted like the plug was fouled a little. It stumbled for the first 100 feet or so and then it will catch and take off.
Is this a jet problem or is something else going on. The engine had been run for about four minutes when this happened. The spark plug has a light coating of black carbon on the ceramic rather than a brown coating.
I'm running a 68 jet (Delerto). Straight fuel and the bikes automatic oilier.
Any ideas?
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Post by rapidrob on Oct 20, 2017 7:52:54 GMT -6
After reading many post from all over the web, I'm torn as to change out my exhaust system. The fellow who posted the Modification of the original muffler vid has since recanted. He says it does not help performance and makes the bike really loud. I've also seen post where some of the guys who installed the "side bleed" type tuned exhaust have also removed them for poor low end performance and excessive noise.
I'm on the fence as to do anything to my bike's exhaust?
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Post by rapidrob on Oct 20, 2017 7:38:10 GMT -6
cyborg you have been very helpful over the past months. Thank you.
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Post by rapidrob on Oct 18, 2017 17:10:21 GMT -6
I'll try again. Front view. Walmart basket ( 3 bucks) to hold my mail.   cylinder cooling fins shaved to fit between foot pegs.1/4" had to be removed on each side.  Treatland Delerto adapter.  Delorto SHA 15.15 carb  Head on view-Head light bulb is replaceable  Rear view  Speed-o-meter with LED back light Tail light is also LED. All battery powerr goes to headlight which is good. It does not go bright/dim via engine speed. |
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