Once again I thought I was off to Shirai Vespa for some more repairs. The reason being, lately the Vespa has been difficult to start, and runs very roughly for the first 10 minutes. After this, its fine but has problems achieving full rev's/speed.
As an example, the Vespa on the open road easily exceeds 80km/h, however, I struggled to even reach 70km/h.
I stopped by Shirai san to advise him it would be coming in for another visit, but as he explained, the Vespa has a 2 stroke engine, and in reality, only the spark plug or carburettor would be at fault. His suggestion was to check the spark plug and if that fails, bring it in.
So with his suggestion in mind, I removed the current spark plug and discovered caked in carbon and oil. A qucik trip to the local Home Centre and JPY240 later, I purchased a new spark plug. Once I had adjusted the gap on the plug, screwed it in tight, a first kick, the Vespa was up and running. The Vespa hadn't felt this good in ages, and all for JPY240!!
Thanks Shirai san.