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09 yfz450r throttle issue
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Boxwellyfz88
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Discussion Starter · #1 · 9 h ago

Hey guys. Sk recently I re build the transmission in my yfz450r. It ran grate for a few rides. Eventually after a few hater rides every time I start it it would rev up slightly but then drop down to normal. Everything worked perfectly. Soonly after I was riding at a different location with high grass clogging my radiator making it over heat. I turned it of to cool and then attempted to re start. It started right up and revved higher than before and then slowly decrease to a very low and rough idle. ANY amount of throttle would kill it. I was able to hold it wide open and start and a few times it would start and barely run at a higher rpm. But bog a LOT. When Riding a lower rpm it stalled a few times unexpectedly. Is this some kinda sensor issue?????. Plz help
 

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If it was mine i would check fuel pump filter screen see if its clogged. Original pump? Might be going bad.

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Discussion Starter · #3 ·
Thanks for your response.... I've ruled out the fule pump because I toke off the gas line and turned my key on. Gas shot out all over so no problem there. Unfortunately
 
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