Sport Bikes banner
1 - 8 of 8 Posts

·
Registered
Joined
·
4,754 Posts
Discussion Starter · #1 ·
If I am maintaining a constant speed of say 30 mph in 1st or 2nd gear, and I whack it open the bike accelerates normally for the first second, then there is a slight lurch forward for a split second and then it continues accelerating as normal. I'm thinking possibly the chain is loose. Could that be it?
 

·
Registered
Joined
·
346 Posts
i got to thinking about this and maybe its not what i said. If the chain start to slip on the sproket under hard acceleration, it would most likely slip for more than a slip second. maybe timeing? clogged carb jets?
 

·
second chimp in space
Joined
·
3,344 Posts
If by lurch forward you mean that the bike momentarily looses power and then gains it back, another thing to check would be the vacuum hoses. My bike had a crimp on the vacuum hose that goes from one carb to the petcock to open the fuel. After I made it run with nice organic curves, part of the stumble went away. The rest went away after I found out that the vent on the tank was getting pinched by the seat. Easy things to check if the other posts didn't get at your problem.
 

·
Registered
Joined
·
4,754 Posts
Discussion Starter · #8 ·
Thanks everyone. I'm going to check all these things in the morning.
 
1 - 8 of 8 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top