not sure exactly where but i woould check between the carb and motor and the exaust somewhere. I think I saw they might of had a rev limiter n them. neat little machine but deffinatly need to be woke up a bit.
Ive done some searching and the 80 raptor came with a intake plate,where is it? im guessing its between the carb and the cylinder or in the airbox blocking some of the airflow. so its one or the other.
hoyt
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96 Polaris SP 400
2003 Honda Rancher 350 ES
02 Mint polaris 250 trailblazer
2004 3500 Ram crew Cummins.
It is a clear plastic piece that fits behind the air cleaner. If you pull up the parts catalog on Yamaha's website for the machine, you will find it pictured on the page that has the front body work. It is not on the page with the carb or engine (go figure).