TRS_Trials Posted July 6, 2019 Report Share Posted July 6, 2019 Hi All, Hoping someone can help... I have a 1978 TY250, but it's very flat when accelerating from the bottom. I have taken the flywheel weight off and that made a difference, but it's still quite flat and needs livening up. Any suggestions? Many thanks. Quote Link to comment Share on other sites More sharing options...
jon v8 Posted July 6, 2019 Report Share Posted July 6, 2019 Either a blocked exhaust or its worn out.Don't expect it to be like a modern Gas Gas, but if they are in good shape they are fine,plenty of power for twinshock trials. Quote Link to comment Share on other sites More sharing options...
guy53 Posted July 7, 2019 Report Share Posted July 7, 2019 Timing and carb. , a 78 should be equipped with a Mikuni carb normally reliable, but if it's worn out it can mean trouble. I run my B model with the carb a LITTLE on the lean side, I insist little. from memory I setup the timing at 3.2mm BTD. Also I ran for a long time with a 0.005 inch tick head gasket, now back to original. And follow JohnV8 advise Guy Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.