Hi,
I've got a Yam TR1 which runs perfectly at low revs and pulls like a train up to 5000 rpm when it begins to stutter. It feels like fuel starvation but the carbs have been stripped, cleaned and properly set up, fuel lines and filters have been cleaned.
It also spits back through the carbs from time to time at low revs.
Bike has done 28,000 miles and is standard.
Any ideas?
cheers,
Roger the Hilldodger.
Leicester'smost handsome penny farthing rider