Snowmobile Forum banner

'06 yamaha rs venture

9K views 7 replies 4 participants last post by  fjrman 
#1 ·
I'm new to this forum but I have read all of yamadads threads so here goes. I have a 2006 Yamaha RS Venture, it has always been a great sled, very dependable. Last year I purchased a 2005 mxz adrenaline so my son and I could each ride alone. So my son and I go riding finally some great snow conditions, trailered the sleds 2 hours, unloaded and rode. About 30 or so miles my son tells me the Yam is feeling sluggish, I get on it and he is right. We ride another 30 miles and it seemed to get worse. Now we are 60 miles from our truck and lucked upon a "convenience" store. AT this time I don't think the sled will make it home so I paid a good man to drive us back to my truck. We got the sleds home and parked them, after 2 weeks sitting (because I work lots of hours) today I finally get a chance to work on it. First I pulled the belt so I could figure out which end is the problem, turns out I cant get any rpms. Ok, carbs, as I have done many times in the past (due to ethanol) I pull the carbs and tear them down, actually very clean but I clean them any way. I reassemble them and put them back on to no avail. Now I'm at a loss. thought for sure it would be the problem. has anyone out there had the same or similar problem and found the fix. In tank fuel filters?, timing chain and gears (timing not advancing)?, fuel pump?. Any help pointing me in the right direction would be great. want to fix this so I can trade it in for a 2013 nitro rtx.
 
#3 ·
Not alot of info to go on, but things seem to point to the drive train. Things I would consider based on your description, is the clutches and drive bearings and or chain case.

Sounds like something is overloading the engine(all things being equal) and could boil down to dirty clutches, worn clutch wear parts, weak/broken springs, etc. My second thought was a bearing on the jack or drive shaft beginning to seize up. I thought about melting hyfax on your trip, but the problem still persisted.

Fuel filter or spark plugs are always a possibility and then there is the airbox and being sure the carb boots are properly attached.

How many miles on the sled and what kind of regular maintenance has it seen? The fact you admit to using ethanol fuels creates some opinions of my own.
 
#4 ·
Yamadad4

I removed the belt to isolate the problem and found it to be an "engine" problem and not drive line. The sled has 2800 miles and has been maintained very well. As for the ethanol fuel, in upstate NY thats all we had until a couple years ago when the non ethanol high octane came out, now thats all I use. I would like to check the fuel filters and fuel pump because it seems to be starving for fuel i'm just not positive where the filter(s) are and how much fuel pressure it needs. The plugs and oil are changed every year oil just for piece of mind. Although I haven't run it yet this year I am a firm believer in ring-free from yamaha, I run it in my bikes too. Thank you guys for your assistance.
 
#5 ·
Great info, that narrows things down. For starters your on the right track by ruling out fuel delivery. The pump can be tested by pulling the engine over or attaching a mighty-vac type tool to see if its delivering once you get down to it. More on that if needed. Its more a visual than pressure test as there is no specific pressure with the carbed sleds. A faint squirt could lead one to believe a pump problem, a blast of fuel is good. As for the filters, they are inside the tank. I find it easier to remove the tank from the sled, but its a pain either way. I think your sled runs the duel filter setup and the right front of the tank will tell. I somehow confuse the rs with the rx.

Another thing to consider is carb sync, choke plungers, and the diaphrams in the carbs. Any one of those diaphrams hanging can contribute as can one of the slides for the choke not freeing. Rare on the choke, but I have seen it a few times over the years and easy to rule out.

Good for you on the regular preventive maintenance and ring free should be used by everyone, I as well, run it in everything recreational.
 
#6 ·
Yamadad

Thanks, it gives me a starting place. I may pull the seat to replace the exhaust donuts so removing the tank will go along with that, plus I want to take the skid out and disassemble it and do deep maintenance to it, been 2 years. I dont mind the work (was an auto tech for years and have built numerous cars and trucks) just now learning about sleds. It will be awhile before I get to it life gets in the way but I'll keep you posted, thanks again for your assistance you are definitely a wealth of knowledge
 
#7 ·
I wouldn't pull the seat or touch the donuts until you figure out this problem first. One thing at a time! You can easily shove a gas can into a hose and see if it changes the behavior, as well as the simple fuel pumping test that yamadad described.

Although it would be rare, have you pulled the plugs &/or done a compression test? How is it starting now?
 
#8 ·
Smokingcrate

I'm definitely going to figure out the running problems first. I will pull the carbs again to ensure I didn't miss something then check the fuel pressure. I'm going to check the fuel quality too, althought I'm using non-ethanol high test I may have picked up a dose of water, ya never know until you check right. My "Spring" honey-do list is getting longer since the snow has all melted so now time is the problem but I will get to it. Thanks for some more sound advice I'll take all I can get
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top