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Post by soulboy74 on Feb 15, 2023 14:34:57 GMT
Hi there I am just wondering how many miles do you think is needed on a ride out ! Before you get a true reading on the plug ?? Just been out again for a few miles today about 7 miles done ! Is this a good time to read the plug after changing out jet size ?? Done about 10 ish miles now scine the up jetting do you think it will give a true reading? Regards soulboy74 ✊
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Post by scooterbooter on Feb 16, 2023 0:08:35 GMT
Oohh at least 50miles. But they also need to be longish runs if you can to get it started. Trouble shows quickly keep your eye on it from time to time but also pay attention to how the bike is behaving. You'll get there . PATIENCE is the key here. If it rides right it's probably right.
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Post by scooterbooter on Feb 16, 2023 0:12:50 GMT
Once plug has coloured you'll get a reading quickly with a hot engine. Always hot cold engine no good for plug colour.
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Post by scooterbooter on Feb 16, 2023 0:19:36 GMT
Ha just read it properly. You can't get a true reading doing it how you doing it but it can give an overall idea of what's going on. This will show after a few miles. Engine hot. Only proper plug chops give true readings . That's what I think. But it'll probably be near enough of an idea for you to sort it out good and proper Bristol fashion. I think your doing just great.
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Post by adrian on Feb 16, 2023 7:54:54 GMT
I tried to get my jetting correct, by riding and checking the plug, thought I had things about right, as scooter was performing well and seemed happy, but I found out that at near full throttle things got very lean, and I seized it , and needed a new kit, so since that I now get it dyno as it works out cheaper than an engine rebuild
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Post by scooterbooter on Feb 16, 2023 9:11:31 GMT
You see this is what happens. You give an answer. Aide gives a better one. X
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Post by soulboy74 on Feb 16, 2023 10:46:22 GMT
Just like to say thank you for your support ✌️ you both always give good advice on all 2 stroke engine l have just ordered some new plugs and I will give them a tryout as l am off on a long run out end of month 140 miles or so last one I checked the plug after and looked chocolate brown but I am learning every thing about spark plug conditions very quickly and I think it is cold/ lean!! On the chart !! Running well but it still slow top end not even making 50 mph but Hay l only go 40ish !! Best regards soulboy74
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Post by soulboy74 on Feb 16, 2023 11:07:32 GMT
Hi again I just wondering if you can put a picture in the thread ??
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Post by adrian on Feb 16, 2023 11:12:01 GMT
You see this is what happens. You give an answer. Aide gives a better one. X Thanks scooterbooter, just trying to help and hopefully save money in the long-term, mine ran fine upto 50mph after 60 it went very lean 😒 |
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Post by soulboy74 on Feb 16, 2023 17:19:54 GMT
Hi there again l have been and had a look at the plug after the air filter drilling modifications and setting up a 98 main jet !! The colour was a dark chocolate brown ish !! Now it's changed to a lighter off White colour this is the porcelain peace in the middle and contact arm peace still a brown colour but still very clean on build up of any kind !! Might be a little bit lean now I not to sure l have some more news plugs coming and I will start from fresh with them one thing I did notice that one side is always a little bit darker than the other same when it was brown one side was always darker !! Any clues to why this happened ?? Got the charts now and there are so many different advice on what good and what is not going out tomorrow morning for a test drive and check it through the choke pulling method at speed 🤞 peace and love soulboy74 ✊
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Post by gpowell on Feb 17, 2023 22:55:36 GMT
If its just the filter mod from standard its not a difficult jobto set it up in my opinion it does not a dyno for this.
What is the set up ;
Top end stand or kit
Carb si 20/24/26
Exhaust?
If jetting was okay before mod
Is it the full opening of the filter (the heart shape) or just drilled above mj?
If fully opened richen/raise the pilot by 1 and raise the main jet by 4 to start and see what happens should be unrideable then come down one at a time and you will probably come down to 2
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Post by adrian on Feb 18, 2023 7:38:09 GMT
If its just the filter mod from standard its not a difficult jobto set it up in my opinion it does not a dyno for this. What is the set up ; Top end stand or kit Carb si 20/24/26 Exhaust? If jetting was okay before mod Is it the full opening of the filter (the heart shape) or just drilled above mj? If fully opened richen/raise the pilot by 1 and raise the main jet by 4 to start and see what happens should be unrideable then come down one at a time and you will probably come down to 2 old school 👍 like it. Does anyone still have a standard motor 🤔 |
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Post by soulboy74 on Feb 18, 2023 8:15:33 GMT
Hi there yes all most standard set up just without the cat part of the exhaust system replacement manifold hook up to the original box!! Drilling modifications 5mm ) 8mm / above the jet stacks!! Had the 96 still in place so I just up jet to 98 running a lot more responsive so far so I think All is well just don't want to go over to the lean side!! Plug reading before the up jetting was a dark chocolate brown ish. Rich but clean. Now it's changed looking more off White middle contact part still brown ish ✊ good to go me think. Just leaning one step at a time in tuneup got the exhaust sip 2 next month 🏴 stay lucky soulboy74 ✊
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Post by soulboy74 on Feb 18, 2023 8:32:09 GMT
Just a heads up !! I have found a really good replacement part shop online called pedparts All the cable are pence and all other vespa part are really good prices and all very high standard 😉 check out
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Post by scooterbooter on Feb 18, 2023 8:46:16 GMT
Mines running a bit lean up top. It normally takes at least a year for me to jet it right. I think I have it but then the little voices are never happy. They make me tinker.
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Post by scooterbooter on Feb 18, 2023 10:46:18 GMT
104 mj . That's my guess. 104 mj.
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Post by adrian on Feb 18, 2023 17:57:16 GMT
104 mj . That's my guess. 104 mj. guess work 🤣🤣🤣🤣🤣 |
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Post by scooterbooter on Feb 18, 2023 22:56:48 GMT
Damn.
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Post by adrian on Feb 19, 2023 8:27:32 GMT
😁 guess work has ment spending another big chunk of money on my scooter, won't say how much increase the wife finds out 😵💫 , then another large chunk on upgrades while the motor was getting rebuilt 😔 must stop looking at German scooter shop porn 😳 |
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markp
1st Class Ticket
Posts: 71
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Post by markp on Feb 19, 2023 21:45:29 GMT
If its just the filter mod from standard its not a difficult jobto set it up in my opinion it does not a dyno for this. What is the set up ; Top end stand or kit Carb si 20/24/26 Exhaust? If jetting was okay before mod Is it the full opening of the filter (the heart shape) or just drilled above mj? If fully opened richen/raise the pilot by 1 and raise the main jet by 4 to start and see what happens should be unrideable then come down one at a time and you will probably come down to 2 old school 👍 like it. Does anyone still have a standard motor 🤔 Yes.....mines still standard apart from the ported polished modified for bigger piston and other malossi parts....so yes officer its standard 😂😂😂😂😂 |
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markp
1st Class Ticket
Posts: 71
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Post by markp on Feb 19, 2023 21:48:12 GMT
You see this is what happens. You give an answer. Aide gives a better one. X Thanks scooterbooter, just trying to help and hopefully save money in the long-term, mine ran fine upto 50mph after 60 it went very lean 😒 One thing about you adrian.....you DO know your stuff and are always on hand to help people with your knowledge.....and a good friend to boot |
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Post by soulboy74 on Feb 23, 2023 15:58:22 GMT
Just wondering about the plug difference !! Now the one I have has a fixed top nut not screw underneath it !! and running well !! Now when I put the new one in with the screw underneath it running not as well !! Just wondering why this happened ? And do any one know what the best plug's are for the PX Vespa 2015 model are??
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