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Post by dermot on Aug 5, 2021 19:31:09 GMT
Hi Everyone
I have just recently bought a 1945 Norman 98,was wondering what is the best 2 stroke oil to use and what ratio,also having problems starting mine,doesn't fire up all the time and petrol seems to leak from carburetor at times...thanks in advance
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Post by JamesCentral on Aug 6, 2021 7:55:26 GMT
I use a semi-synthetic 2-stroke oil at 25:1 in my Villiers engines. This results in a slightly richer fuel/air mix than the 16:1 of the original specification, causing 4-stroking when lightly loaded, but they start easily and pull well when you need them to.
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Post by davwat on Aug 6, 2021 20:12:36 GMT
Hi Everyone I have just recently bought a 1945 Norman 98,was wondering what is the best 2 stroke oil to use and what ratio,also having problems starting mine,doesn't fire up all the time and petrol seems to leak from carburetor at times...thanks in advance For the 1945 Villiers Junior Deluxe engine I would use mineral 2 stroke oil at 25:1 I find most starting problems to be fuel related (that is if you have a good spark and the timing is set correctly). Where is the leak coming from? is it the inlet banjo, the bottom of the float bowl, or is it flooding. Setting the fuel level is a whole bundle of fun  |
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Post by brandy22 on Aug 7, 2021 20:02:51 GMT
Hi Everyone I have just recently bought a 1945 Norman 98,was wondering what is the best 2 stroke oil to use and what ratio,also having problems starting mine,doesn't fire up all the time and petrol seems to leak from carburetor at times...thanks in advance For the 1945 Villiers Junior Deluxe engine I would use mineral 2 stroke oil at 25:1 I find most starting problems to be fuel related (that is if you have a good spark and the timing is set correctly). Where is the leak coming from? is it the inlet banjo, the bottom of the float bowl, or is it flooding. Setting the fuel level is a whole bundle of fun HI,I think its flooding,easy to start when cold and rides ok,dies out sometimes and wont restart, have to leave it for around 15 to 20 mins and it will start |
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Post by davwat on Aug 7, 2021 20:47:14 GMT
HI,I think its flooding,easy to start when cold and rides ok,dies out sometimes and wont restart, have to leave it for around 15 to 20 mins and it will start Flooding is normally down to the float needle not shutting off completely, have you had the carb off and cleaned it? and checked that the float is actually pushing the needle up fully and has correct gap (ie level is correct)
Cutting out could be carb again the jet/centre piece can be problematic needs a good clean.
or cutting out and restarting after cooling down is common on a lot of mopeds when the condenser or coil is faulty.
BTW Welcome to my world lol
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Post by JamesCentral on Aug 8, 2021 8:35:04 GMT
The way it dies out can be telling: if it just cuts out suddenly, it's likely to be ignition trouble; if it loses power first, or coughs & splutters a bit, fuel is more likely to be the cause.
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Post by brandy22 on Aug 8, 2021 12:49:20 GMT
HI,I think its flooding,easy to start when cold and rides ok,dies out sometimes and wont restart, have to leave it for around 15 to 20 mins and it will start Flooding is normally down to the float needle not shutting off completely, have you had the carb off and cleaned it? and checked that the float is actually pushing the needle up fully and has correct gap (ie level is correct)
Cutting out could be carb again the jet/centre piece can be problematic needs a good clean.
or cutting out and restarting after cooling down is common on a lot of mopeds when the condenser or coil is faulty.
BTW Welcome to my world lol
Haven had the carb off yet is it hard to clean it out,what about carb cleaning spray ..? |
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Post by brandy22 on Aug 8, 2021 12:52:07 GMT
Flooding is normally down to the float needle not shutting off completely, have you had the carb off and cleaned it? and checked that the float is actually pushing the needle up fully and has correct gap (ie level is correct)
Cutting out could be carb again the jet/centre piece can be problematic needs a good clean.
or cutting out and restarting after cooling down is common on a lot of mopeds when the condenser or coil is faulty.
BTW Welcome to my world lol
Haven had the carb off yet is it hard to clean it out,what about carb cleaning spray ..? Would there be any info on here on how to take the carb apart and clean.. |
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Post by brandy22 on Aug 8, 2021 13:24:10 GMT
The way it dies out can be telling: if it just cuts out suddenly, it's likely to be ignition trouble; if it loses power first, or coughs & splutters a bit, fuel is more likely to be the cause. Definitely seems to splutter a bit before dying out then have to leave if for 15 to 20 mins until it will start again |
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Post by davwat on Aug 8, 2021 13:25:11 GMT
No surprise you are having issues, I wont even try starting a bike now unless I take the carb off and clean it out and use fresh fuel.
Have a go and don't hesitate to ask questions.
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Post by JamesCentral on Aug 9, 2021 10:06:09 GMT
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