Rs Venture Idle speed not consistant

[venture2]

Hello-
I own a 06 rs venture with 2000 miles logged. On the last couple trips, I noticed a problem with the idle speed when coming to a stop. When I let off the throttle, the speed comes down to 2200 rpm for about 20-30 seconds or so and then drops down to the normal setting of 1500 rpm. I suspect something is hanging up in the carb system, but not sure. Has anyone had this problem or is aware of the fix for it? I saw a similiar post a while back but can't find it now.

Thanks in advance!

Don

 

[JohnWI]

Some say the carbs are slightly outta synch. Someone else suggested dialing the idle back about 1/8th of a turn.

I just make sure that the sled is down to regular rpms before I shut her down.

 

[Canadian Lad]

I have an o6 Vector and it has done this since day 1. It is normal. Don't worry about it.

 

[towing]

Just turn down your idle screw 1/16 to 1/8 turn at a time and you will find the right spot where the rpm drop down correctly and the idle is not too fast. The idle will be somewhere between 1400 and 1500rpm. Adjust it during your ride at a stop to ensure that the motor is at his operating temperarure...

Bye
Alain

 

[Wildman]

My rage does the same thing, no worries I guess. I chased my tail with the idle screw all winter. It was either to low or a bit to high.

 

[Roger]

My 07 Venture ran perfect for the first winter. After an oil change at Arnprior Sportland in Arnprior Ontario in January it has not run properly since. It won't idle, and every Ski-Doo with SDI gets 10%-30% better mileage. The carbs were way out of sync, and now it won't idle. Time to go back to a good reliable 2-stroke. Ski-Doo's E-Tech will get 50% better mileage than my Piece of Cr...

 

[radianguy]

My 08 Vector did the same, I played with the idle adjustment alot to get it right. With the engine fully warm slowly turn your idle down so it will idle smoothly at 1500, then go for a short run and test, and test and test. It took alot of fine adjustments for mine to come down to 1500 after I stopped riding.

 

[garserio]

Carbs need to be sync'd. I tolerated my uneven idle for 4 years and then I bought a carb sync tool. The carbs were off quite a bit and yet I never touched them from the factory.

In addition to smoother idling, syncronizing my carbs also made my engine start almost instantly, often times without the choke even upon cold startup.

 

[venture2]

Thanks for all the replies on the carb problem!

I plan to buy a caruretor synchronizer gauge this week. I remember testing my 3 cylinder motorcycle years ago and the carburetors were way out of wack with each other. It makes sense that the cables can stretch or settle just a little and that would change the factory settings, so better safe than sorry.The idle speed setting must be a factor as well, because I think the erratic idleing problem started after I raised the idle speed a little, although it seemed okay at first and the changes appeared suddenly.

thanks again-
Don

 

[Roger]

Dealer found out why mine wouldn't idle. Exhaust valves melted, exhaust sleeves worn out, exhaust seats, done. Needs new head, exhaust valves, etc... At least Yamaha is finally covering something under warranty. 3 weeks for parts, so this must be a common problem. So much for the rest of my winter. Good luck with your sled.

 

[hondo]

Is the glass half empty, or is the glass half full???

Did you ever think that it is not such a common problem as you refer, thus it may take some time to get the parts to your dealer?

A valve train inspection was completed at 22,500 miles on my sled.

There are 4 valves per cylinder.

Only 3 valves (one per cylinder) were slightly out of spec tolerance, and were shimmed back into spec tolerance.

The remaining valves, timing chain, and cam lobes were perfect.

I believe you just happened to the unlucky one to experience such a rare event.

Sorry you have such bad feelings for a product that I consider to be second to none.

 

[Roger]

Is the glass half empty, or is the glass half full???

Did you ever think that it is not such a common problem as you refer, thus it may take some time to get the parts to your dealer?

A valve train inspection was completed at 22,500 miles on my sled.

There are 4 valves per cylinder.

Only 3 valves (one per cylinder) were slightly out of spec tolerance, and were shimmed back into spec tolerance.

The remaining valves, timing chain, and cam lobes were perfect.

I believe you just happened to the unlucky one to experience such a rare event.

Sorry you have such bad feelings for a product that I consider to be second to none.

I changed brands because almost every Polaris I owned, I blew up. My first Yamaha was a 700 Venture, it is still a great sled. 20000km's, no clutch work, no engine work, no carb work. This 4-stroke has been nothing but trouble this year. Can I trust it after the engine is repaired? I really don't think so. My sled is 14months old. The dealer wants $6549 plus tax for the Venture GT. This also shows that the dealer thinks used 4-strokes are almost worthless. I always traded my 2-year old Polaris's for $3500 plus tax. This is a hugh difference.
You are having great luck with your 4-stroke. The way my entire sled has behaved this year, is simply not acceptable. I have never put 5 cents into a sled when it is supposedly under warranty, and I have never been out of a sled for a weekend.

 

[Roger]

Re: Thanks for all the replies on the carb problem!

I plan to buy a caruretor synchronizer gauge this week. I remember testing my 3 cylinder motorcycle years ago and the carburetors were way out of wack with each other. It makes sense that the cables can stretch or settle just a little and that would change the factory settings, so better safe than sorry.The idle speed setting must be a factor as well, because I think the erratic idleing problem started after I raised the idle speed a little, although it seemed okay at first and the changes appeared suddenly.

thanks again-
Don

I would check engine compression as well. The dealer did a carb sync on mine also. This sync worked well until the exhaust valves were melted even more. Good luck.

 

[ahamay]

Hello-
I own a 06 rs venture with 2000 miles logged. On the last couple trips, I noticed a problem with the idle speed when coming to a stop. When I let off the throttle, the speed comes down to 2200 rpm for about 20-30 seconds or so and then drops down to the normal setting of 1500 rpm. I suspect something is hanging up in the carb system, but not sure. Has anyone had this problem or is aware of the fix for it? I saw a similiar post a while back but can't find it now.

Thanks in advance!

Don

I have exactly the same thing happening with my 07 VK Pro. The problem started at about 3600 km. I don't think idle adjustment is the fix here as some are suggesting but I will try it . Does anyone know for sure what would cause this. Where can I buy a carb sync Gauge and is there a certain type I have to get?

 

[Roger]

Hello-
I own a 06 rs venture with 2000 miles logged. On the last couple trips, I noticed a problem with the idle speed when coming to a stop. When I let off the throttle, the speed comes down to 2200 rpm for about 20-30 seconds or so and then drops down to the normal setting of 1500 rpm. I suspect something is hanging up in the carb system, but not sure. Has anyone had this problem or is aware of the fix for it? I saw a similiar post a while back but can't find it now.

Thanks in advance!

Don

I have exactly the same thing happening with my 07 VK Pro. The problem started at about 3600 km. I don't think idle adjustment is the fix here as some are suggesting but I will try it . Does anyone know for sure what would cause this. Where can I buy a carb sync Gauge and is there a certain type I have to get?

I really suggest you read my couple of posts right above this one. It sounds like your engine is melting down also. Good luck.