So I've had my magnum for quite some time now, just recently fixed it.. crashed it and the left a-arm bent and ball joint ripped out, it's been sitting for about 2 years, I had to use carb cleaner to start it the first time with some fresh gas also... only problem it has now is that its so cold natured, it won't start cold unless I take the air filter off and put my hand over the air intake.. then it will run and rev all the way up... put the air filter back on and the seat and it wont start again... it's a pain to have to deal with this... any suggestions? Rejet the carb? Rebuild the carb or what?? :S Thanks!

 

Take the carb off and clean it right.