Hi, thanks for all the info so far and any suggestions. 2002 Venture 600 with about 4000 miles, has run great for the 12 years I had it, but must confess this is my first carb cleaning or issue at all. Use only non oxy gas and I’m in MN. Seafoam periodically but not a lot.
Anyway, out of the blue it lost power and my kid limped it back. Changed plugs and took it for quick spin and it ran great (really cold weather, -25ish). Didn’t use it again and when we started it again a week or so later, same thing but worse. Starts fine, idles but any throttle and it bogs. Now it won’t even engage track. I have it in garage and followed carb 101 steps. Twice.
Only thing I didn’t do was blow the air vent holes, and it fuel screw was originally set to 3, factory says 2, so I now have it set to 2 and it idles way too low, less than 1000.
The bowl was spotless clean even before “cleaning” and pilot jet was clean, I made sure with wire and air. Main jets too.
I adjusted throttle cable so there is play before engaging and it “appears” the tors pivot is working properly. I did not clean or do anything with tors, other than disengaging the plugs and trying bypass, which didn’t do anything to the throttle response.
I also checked compression and all the same at about 120 or a bit above.
I started it and removed one plug cap at a time, and the drop in engine “sounds” was same for each plug, so it appears each is firing. I also tested spark with inline tester and each seems to have good spark. The 1 and 2 plugs are oily and black, #3 (starboard) is whiter and dry, and when we did run it a bit and checked plugs #3 seemed hot and smoking when we pulled it, 1 and 2 did not do this, if that matters.
I plan to take carbs off again and set the fuel screw back to 3 turns, or maybe 2.5 since idle is so low now. Unless you tell me not to. I also will look for jet numbers, I didn’t but almost positive that they are stock as I bought this from relatives who I don’t think would have changed it in the first 1000 miles when they were original owners.
I am not mechanic at all, but have successfully cleaned and rebuilt carbs on outboards and on my two Polaris twins, and rebuilt fuel pumps…. So know just enough to be dangerous. This be has me stumped though, and I read through each tutorial here and watched you tube vids and trying to figure it out.
I did not adjust float level at all. And did not take a parts tors switch or throttle tors switch. Hopefully just I need another pilot jet clean, but man they were totally clean! Help!
Thanks!
Anyway, out of the blue it lost power and my kid limped it back. Changed plugs and took it for quick spin and it ran great (really cold weather, -25ish). Didn’t use it again and when we started it again a week or so later, same thing but worse. Starts fine, idles but any throttle and it bogs. Now it won’t even engage track. I have it in garage and followed carb 101 steps. Twice.
Only thing I didn’t do was blow the air vent holes, and it fuel screw was originally set to 3, factory says 2, so I now have it set to 2 and it idles way too low, less than 1000.
The bowl was spotless clean even before “cleaning” and pilot jet was clean, I made sure with wire and air. Main jets too.
I adjusted throttle cable so there is play before engaging and it “appears” the tors pivot is working properly. I did not clean or do anything with tors, other than disengaging the plugs and trying bypass, which didn’t do anything to the throttle response.
I also checked compression and all the same at about 120 or a bit above.
I started it and removed one plug cap at a time, and the drop in engine “sounds” was same for each plug, so it appears each is firing. I also tested spark with inline tester and each seems to have good spark. The 1 and 2 plugs are oily and black, #3 (starboard) is whiter and dry, and when we did run it a bit and checked plugs #3 seemed hot and smoking when we pulled it, 1 and 2 did not do this, if that matters.
I plan to take carbs off again and set the fuel screw back to 3 turns, or maybe 2.5 since idle is so low now. Unless you tell me not to. I also will look for jet numbers, I didn’t but almost positive that they are stock as I bought this from relatives who I don’t think would have changed it in the first 1000 miles when they were original owners.
I am not mechanic at all, but have successfully cleaned and rebuilt carbs on outboards and on my two Polaris twins, and rebuilt fuel pumps…. So know just enough to be dangerous. This be has me stumped though, and I read through each tutorial here and watched you tube vids and trying to figure it out.
I did not adjust float level at all. And did not take a parts tors switch or throttle tors switch. Hopefully just I need another pilot jet clean, but man they were totally clean! Help!
Thanks!
thanks for any advice.