If you can't do Carb work yourself ask around locally for a motorcycle bike mechanic who knows about carburetors.
We have several guys who have small workshops who are capable of sorting bike carbs out in our area.
The only one that's worthwhile from what I was told once is applying for a 7-11 franchise.
It was 2,000,000 lay out and they reckon you will get money back and make a living in 2 years.
Fair call, I'm not in the market anymore and keeping my truck but if MG had been around at the time with the new labeled Maxus for Thailand I could save myself nearly 100,000 baht on the equivalent model so I would have given it a try.
My friends daughter has one and my friend has a Nissan truck.
He said he cannot fault it they have had the top of range MG truck over a year now with quite bit of over average kilos on it.
Like i have said you can argue a case or just pay the fine.
Long stay people know the DL laws in Thailand are not the same as in their home country.
Simply put you on holiday want drive, get a IDP.
Staying long time get a Thai DL.
The whole point of argument is the uk photocard DL has all the information on it in English.
The uk IDP has all the information in English which is already on the uk DL, if it had Thai written information as well the reason for a IDP would make sense but it doesn't.
Why not take it to a Honda big wing and get service done properly rather than what sounds like taking it a spanner short cut workshop especially when you cannot carry out simple tasks like oil and filter change on a motorcycle.