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Old October 20th, 2013, 04:11 PM   #1
snocross2xtremes
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Default Renix 4.0 stumble and back fire at 2200rpm

Renix 4.0 stumble and back fires at 2200rpm. Idles good and runs good at higher Rpms.
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Old October 20th, 2013, 05:01 PM   #2
WACKO1
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Timing is off
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Old October 20th, 2013, 05:22 PM   #3
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whaat kind of dizzy ?
if it still has a vacuum advance.......check the unit to ensure it moves smoothly.
Check the timing chain backlash (crank to dizzy)
You are runnink OK at full advance and may actually be getting it. but the timing is off at lower rpm showing a mechanical lag in timing.
Assumed all vacuum leaks are inspected and fixed if there were any.
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Old October 21st, 2013, 08:14 AM   #4
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Quote:
Originally Posted by itselliott View Post
whaat kind of dizzy ?
if it still has a vacuum advance.......check the unit to ensure it moves smoothly.
Check the timing chain backlash (crank to dizzy)
You are runnink OK at full advance and may actually be getting it. but the timing is off at lower rpm showing a mechanical lag in timing.
Assumed all vacuum leaks are inspected and fixed if there were any.
Non vacuum dizzy. Brand new timing chain. As far as I can tell no vacuum leaks. Also no check engine light
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