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irregular RPM between 5000&6000 rpm

Started by jorous, May 28 2011 11:28 AM

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2 replies to this topic

#1 jorous

Novice

Members
10 posts

Water:Salt
Year of DOO:2010
Model of DOO:Challenger 180 SE
Engine in DOO:Rotax 4-TEC

Posted 28 May 2011 - 11:28 AM

My 2010 Challenger 180SE has done 15h and today I noticed irregular RPM when at 5600RPM. there was a variation of 300 rpm jump up and down. when at full throttle or below 5000 rpm the irregularity does not happen. however I noticed that full RPM was slower to reach than usual
I appreciate your suggestions. Joe

#2 Kevin Leclair

SeaDooSportBoats.com Founder

SDSB Management
5,389 posts

Water:Allatoona Lake
Year of DOO:2010
Model of DOO:210 Wake
Engine in DOO:Twin Rotax 4-TEC SCIC

Posted 02 June 2011 - 07:32 AM

Sounds like cavitation. Are you aware if you sucked up anything in there? It is possible that your wear ring is damaged and is causing these symptoms.

Keep us posted.

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#3 jorous

Novice

Members
10 posts

Water:Salt
Year of DOO:2010
Model of DOO:Challenger 180 SE
Engine in DOO:Rotax 4-TEC

Posted 03 June 2011 - 11:27 AM

I today noticed some water leak (spraying) from the behind the exhaust while flushing the engine. the water is leaking from behind the yellow rubber gusket. I tried tightening the knot but could not find the right tool. I guess I should take it in for a proper check. Thanks for your reply