hi guys i have a problem

[torawang]

hi guys,i had a 97 challenger 1800 twin engine ,but when i'm push down both throttle lever one engine run 7000rpm another is 6500rpm,still can make 50mph ,why the rpm differently?how can fix it?Thank you

 

[Gunsrunner]

1) Different state of tune between engines (compression, spark, fuel).
2) Jet pumps different (wear ring, impeller pitch, seals).
3) throttle cables adjusted wrong.
4) something stuck in jet pump.
There are so many things that could do this, check the basics and get back to us!

 

[torawang]

Thank you,i think is throttle cables,because had one is new ,maybe they set different,and one more problem is one throttle handle push to half and hand free zhe handle automatic going back,but another one is stuck at half,how to fix it?

 

[Gunsrunner]

If you take the throttle levers out, there are tensioning nuts on the levers to stop them free falling,
http://partsfinder.onlinemicrofiche.com/seadooforums/Seadoo_oem/Seadoo_JB.asp?Type=13&A=20&B=23
You need to get your hands on the owners manual, why dont you join as a premium member for a month!