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View Full Version : yfz 450 cutting out problem



squarepants
05-01-2010, 04:28 AM
HI GUYS..can anyone help?.i have a 05 yfz 450,i got the bottom end rebuilt a year ago and ever since when i go for a spin it cuts out.at first it might do it once in 3hrs but lately it happens after about 15mins hard driving and keeps doing it every 5 to 10 mins.When it goes to cut out i pull the clutch and it'll rev right up but if i let out the clutch it wants to cut out altogeter.so what i usually do is hold in the cluthch and rev it for 10 secs and it takes off fine again.Thanks for yer time guys..

gncc025
05-05-2010, 01:00 PM
did you mess with the carb when you had the bottom end redone?

Vampire2800
05-06-2010, 01:36 PM
It almost sounds like something is getting too hot causing it shut off...... Just a thought