BOX1

P500 Won’t revv

Y

Yortm

New Member
Sep 20, 2020
3
4
3
Australia
Ownership

  1. Do not currently own
Hi all!
I’m having trouble with my sxs 500.
it had 220psi compression, so I pulled the top end off and found damaged buckets and cam lobes, removed front cover and replaced cam. Re assembled honed cylinder, new piston and rings. Cleaned head and valves etc.still has about 150psi comp. the engine starts and idles a little high but runs ok. When you accelerate it cuts out and then comes good again over and over. (Like when you hit speed limiter)
Replaced IACV. Serviced, tried ecu, fuel pump, throttle body, exhaust, injector even a stator. Spark is good. Fuel is good. Air filter is clean. Timing is spot on. And I can’t work it out?!! The throttle body is black on the inside? Not sure where to go from here. Any help would be great. Cheers
 
Bastardchild

Bastardchild

Well-Known Member
Nov 3, 2016
1,978
7,250
113
Orange Heights, fl
Ownership

  1. 500

  2. 1000-5
Hi all!
I’m having trouble with my sxs 500.
it had 220psi compression, so I pulled the top end off and found damaged buckets and cam lobes, removed front cover and replaced cam. Re assembled honed cylinder, new piston and rings. Cleaned head and valves etc.still has about 150psi comp. the engine starts and idles a little high but runs ok. When you accelerate it cuts out and then comes good again over and over. (Like when you hit speed limiter)
Replaced IACV. Serviced, tried ecu, fuel pump, throttle body, exhaust, injector even a stator. Spark is good. Fuel is good. Air filter is clean. Timing is spot on. And I can’t work it out?!! The throttle body is black on the inside? Not sure where to go from here. Any help would be great. Cheers
Any codes flashing on the dash?
 
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Y

Yortm

New Member
Sep 20, 2020
3
4
3
Australia
Ownership

  1. Do not currently own
Nope checked for codes and nothing at all. Everything seems to be working ok according to the computer
 
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H

hondabob

Well-Known Member
Lifetime Member
May 14, 2013
1,155
4,489
113
Prescott Valley, AZ
Ownership

  1. Other Brand

  2. 1000-3
If its only a problem with hard throttle try a new spark plug cap and spark plug. With hard throttle the firing voltage goes way up.
 
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Y

Yortm

New Member
Sep 20, 2020
3
4
3
Australia
Ownership

  1. Do not currently own
We have tried a new complete coil and plug and still no success. 👎🏿
 
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BOX2
box3

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