By Heidi Wilmoth
You will quickly see that I am new to this and don't quite know how to pose this question. I gave myself a Coleman 400 UTV for my 65th birthday a month ago."To Yaya: From Yaya" I've noticed a couple issues. First, as I drive around our acreage, sometimes it just putters, almost sounds like it's going to turn off. The other issue is the lights on the dashboard that correspond with forward, neutral and reverse don't match up to the actual gear. Sometimes it does but most of the time it doesn't. What I mean is that when I put it in forward to drive, the reverse light will be on the dashboard light. Sometimes it will be the forward light. When I put it in Neutral, sometimes the light on the dashboard /N lights up and sometimes it doesn't. Lastly the gas gauge does not register. Although the tank is almost full, it shows E / Empty.
By Rey Ximenes
OK, here's the mystery of the day. I was using the UTV the other day and the idiot light came on that said it was overheating. I immediately shut down and checked the coolant. No coolant! I refilled the overflow reservoir and the radiator and all was fine. 2 days later the light is on again. I rechecked the radiator and it was again empty? Bone dry? Now, here's the weird part, There is no coolant anywhere on the floor below the vehicle. I can't even see any on the frame. I have it up on the lift and am getting ready to start tearing into the bottom "skid plate" to see if the leak is in the hoses there. Any suggestions as to where to start? I have yet to begin and I am already baffled!
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Had to replace the camshaft and exhaust valve rocker arm due to abnormal wear. The cam lobe was ground nearly completely off!
Now I have a no start.
The only service manual I've been able to find for this is the HS 500-700 edition. This manual shows a split head with 5 valves. Mine is 2 valves with a machined 1 piece head. The HS400 head looks the same. The problem is that neither of these give an accurate description of how to set up the timing after a cam replacement.
I watched the video that is posted on this site but that is for the split (2 piece) head.
I have attached a picture of how I lined up the timing marks. What have I done wrong?
Timing gear, all marks to top. Crank (thru armature peep hole) is there. 3rd line, top center but it doesn't sound like I have decompression.
In fact, my go round put me at least 2, maybe 3 links off (early) and I actually thought it was going to run. I could hear the motor pop but wouldn't fire and run. After I readjusted the chain I get no indication of any fire and sounds like no decompresion. ??