Runs great for 30 mins or so then cuts out

[jnaugle]

Help guys. I just bought a 2000 blaster. It was rebored 30 over. It runs really strong for about 30 mins then just want to shutdown. Gas it and it runs but bucks and carries on. I let it cool off then it runs strong again. Help. What do I do.
Jamie

 

[stephen12091985]

i would say check your jetting

 

[brandoz28]

yup check your jetting for sure. sounds like its overheating

 

[yb200]

could be a bad coil

 

[doc_speeder]

could be a bad coil

Yep, coil or CDI is my first guess. How long do you need to let it sit?

 

[jnaugle]

Well I had it out just from 10mins puttin around the yard. It started to act up. I have not pulled the spark plug but would this be a cause? Where do I start first. The guy I bought it from said he rejetted it. I am new to this so not sure what to do first.
Thanks Jamie

 

[2stroke4ever]

first read up on checking your jetting, do so, use a temp gun and make sure your not overheating, then i'd suspect a electrical problem and chase that around, and from there i'd repost and let us know