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Polaris sport 400 automatic

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Old 05-01-2003, 03:48 AM
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Default Polaris sport 400 automatic

Not sure if any thing is wrong but my atv is slow off the start but takes off very fast after it get's into next gear but starting off atv is very sluggish, Is any thing wrong or is the how it works??? Any suggestions.
David
 
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Old 05-01-2003, 09:34 AM
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Default Polaris sport 400 automatic

Need a little more info such as year model, and if any mods have been done. Thanks,Bubba
 
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Old 05-01-2003, 10:41 AM
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Default Polaris sport 400 automatic

Not much info to work with, but perhaps a primary spring with a stronger initial tension might help?
Or perhaps it has a pipe that has less low-end torque than stock, yet still has the stock clutch settings?

Like Bubba suggested, let us know year, model, and any mods from stock.
 
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Old 05-01-2003, 11:57 AM
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Default Polaris sport 400 automatic

Could be a worn out belt. If the belts worn it could be starting in a higher ratio causing it to bog at lower rpms.
 
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Old 05-01-2003, 02:04 PM
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Default Polaris sport 400 automatic

It's a 1999 400 sport automatic oil injected no modifications done to it engine runs great but very slow off the start.
David
 
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Old 05-01-2003, 02:06 PM
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Default Polaris sport 400 automatic

It's a 1999 400 sport automatic oil injected but very slow off the start. Engine runs great.
David
 
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Old 05-01-2003, 02:27 PM
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Default Polaris sport 400 automatic

I agree that it could be a worn belt or grooves in the clutch faces. Could be alot of other things though as the others mentioned.
 

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Old 05-01-2003, 06:54 PM
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Default Polaris sport 400 automatic

If it has the original belt on it I would get a replacement and take the clutch cover off, clean the clutches by blowing them out first with an air hose, then wipe them clean with alcohol (not the good stuff LOL) or brake cleaner works good. Try that first. It should put it back to correct deflection specs. If it has been brake torque a bit or slipped a little the belt could be charred just a little and it will make them take off slow like you are stating. A belt will fix problems 75% of the time first. Bubba
 
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Old 05-01-2003, 10:54 PM
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Default Polaris sport 400 automatic

Is this something that just started or has it allways done it?
 
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Old 05-02-2003, 06:51 AM
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Default Polaris sport 400 automatic

Thanks BUbba 297, you and all that responded, all information greatly appreciated.
David
 
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