Looking for any leads I can get. the only time it will spool up is if im on a groomed trail and already into the throttle. if I try and take off in snow any deeper than a foot it feels like i'm riding a 340 fan. I have a Koso pyro and a single led light mounted on the handle bars, when idling the light flickers like its not got a good contact and the pyro quits reading at high rpms and when I push the max button it gives me numbers like 1800. I ran new ground wires, didn't help. I have a few ideas to try but with my work sechedule I don't have a lot of time to tinker so I would really appreciate any tips or leads anyone has. I tried a new stator and on my list is to check the carb vent, reeds, voltage regulator ad carb boots. I am at 2700' My carb is at 380 mains 145 starter, needle in middle, 45 pilot, fuel screw out 1-1/4 and pilot air 0.6. huge thanks to any help.
685 with a low end problem
- Thread starter corblund
- Start date
685
Has the current set up run before? If so look to the clutches. Try a different belt. Replace the primary spring and or the driven spring. Sounds like a sagged out spring to me.
Has the current set up run before? If so look to the clutches. Try a different belt. Replace the primary spring and or the driven spring. Sounds like a sagged out spring to me.
Also take a look at the power valves. The solenoid on one of mine went out and as soon as I plugged them with vacuum caps I had full rpm again.
Thanks, the primary is good and the secondary was the first thing I replaced. Team sent me an 04 with the perfect setup according to them. I'm thinking more towards reeds or power valves, but what would be my electrical issue? Cdi wouldn't affect it would it? It has a new stator.
The motor is an 05, it's in an 07 IQR.
A few questions:
Are the carbs vented to the airbox
How many miles on the engine
What is the cranking compression
What pipe are you using
What CDI are you using
What sensors are still active? TPS, DET, Watertemp
Wat belt are you using
What is the CTC
380 mains is what I run in my wifes 685 in an IQR at Island Park which is 6-8k.
Are the carbs vented to the airbox
How many miles on the engine
What is the cranking compression
What pipe are you using
What CDI are you using
What sensors are still active? TPS, DET, Watertemp
Wat belt are you using
What is the CTC
380 mains is what I run in my wifes 685 in an IQR at Island Park which is 6-8k.