FLKustom
New Member
Okay so I know this is a Seadoo forum and this question is not Seadoo related but you guys have been very helpful and I've learned a lot from you so I thought I would ask here since a motor is a motor is a motor...kinda
94 Yamaha Waverunner III
First off not my waverunner so I apologize for lack of knowledge here, I don't know the current compression situation (will update that when I find out)
it's a friend's waverunner with the 701
They ran it 2 weeks ago and it was "a little boggy and had a misfire" they ran it again yesterday and it was only running on one cylinder, bogging, back firing and running very loud
changed spark plugs and no change, checked plug wires and confirmed it's getting spark to the spark plug
They (by the advise of an outboard mechanic that knows little about PWC's) put seafoam in it yesterday morning before they went out, about a half a bottle into 10 gallons. As far as I've been told this isn't the best thing to do, But again it had a miss in it before this just not quite this bad
Looking for some advise, If anyone can give me tips on things to check. I'm thinking it's just old and finally kicking the bucket but I want to try and help them out before they spend a lot of $$$ on an old machine
Thanks guys
94 Yamaha Waverunner III
First off not my waverunner so I apologize for lack of knowledge here, I don't know the current compression situation (will update that when I find out)
it's a friend's waverunner with the 701
They ran it 2 weeks ago and it was "a little boggy and had a misfire" they ran it again yesterday and it was only running on one cylinder, bogging, back firing and running very loud
changed spark plugs and no change, checked plug wires and confirmed it's getting spark to the spark plug
They (by the advise of an outboard mechanic that knows little about PWC's) put seafoam in it yesterday morning before they went out, about a half a bottle into 10 gallons. As far as I've been told this isn't the best thing to do, But again it had a miss in it before this just not quite this bad
Looking for some advise, If anyone can give me tips on things to check. I'm thinking it's just old and finally kicking the bucket but I want to try and help them out before they spend a lot of $$$ on an old machine
Thanks guys
