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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 26044
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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Curtis, I have a 350l polaris 4x4. It was running well but

Customer Question

Hi Curtis, I have a 350l polaris 4x4. It was running well but now has no power in the top end. It sounds great and responds well "in stand still" position.
Submitted: 1 year ago.
Category: Small Engine
Expert:  Curtis B. replied 1 year ago.

How did problem develop? Have you removed the speed limiter wire for test?

Expert:  Curtis B. replied 1 year ago.

Black wire from the CDI unit.

Expert:  Curtis B. replied 1 year ago.

Has carburetor main needle been removed?

Expert:  Curtis B. replied 1 year ago.

It has snap ring that changes the main jet fuel volume.

Customer: replied 1 year ago.
Curtis,I am not a computer guy or a mechanic. What am I testing (looking for) when I remove the black wire on the speed limiter and what is a CDI.
Expert:  Curtis B. replied 1 year ago.

The speed limiter wire can affect the ignition circuit. CDI is capacitor discharge ignition, it fires the coil at the right time.

Expert:  Curtis B. replied 1 year ago.

HAYNES makes a Polaris service manual, well worth the price. Ebay has them.