Cy25
Junior Member
- Messages
- 16
- Location
- Mill Hall, Pa
I am having some troubles with tuning my rampage. Its a HY 30.5cc engine with a Z-RC intake and a .012 copper gasket. I have gotten about 6 tanks of a fuel threw the motor. (Would be more but these things seem to run forever on a tank of gas.) Still running the stock spark plug (INK CMR5H) at this time. The motor break in seems to be going just fine. It has great mid range and great throttle response. However, it doesn't want to open up on top end and lack of bottom end/launch power IMO. I have run power saws almost my whole life and I feel that it should have more snap on low end even for only being 30.5cc. I have tried tuning the carb in but I think I am hitting a brick wall. It will run good for a few minutes then it will stall out like it gets too hot. I have to hold the throttle wide open and pull quite a few times for it to fire and stay running. Once I get it to fire I can run it up to top end and clean it out its fine for a few more minutes. I took a picture of this plug after I pulled it thinking its fouled and put a new one in.(attached) The brand new plug (NGK CMR5H) seems to start easier but still isn't tuning in and running like I think it should. I haven't taken a temp gun to the jug or exhaust yet to get a temp but definitely seems hot. So my questions to everyone on here are:
1. Am I running it too lean or rich?
2. What does a typical plug look like on these when its running correct? ( I was told once they should be a golden brown color)
3. Is my problem High or Low end tuning or both?
4. Am I running a too hot or cold of plug? (I live in central pa and temps have been between 70-85 Degrees and 70%+ Humidity)
5. Is this a problem with the stock carb that comes with these things I have been hearing about?
6. Am I still in the break in phase to the point where I should just run it when I can until it shows that it is broke in and the performance will show itself? (Most saws I ran required 8 tanks of fuel threw them before tuning)
Thanks ahead of time and will be awaiting your answers and/or possible solutions....
~Cy
1. Am I running it too lean or rich?
2. What does a typical plug look like on these when its running correct? ( I was told once they should be a golden brown color)
3. Is my problem High or Low end tuning or both?
4. Am I running a too hot or cold of plug? (I live in central pa and temps have been between 70-85 Degrees and 70%+ Humidity)
5. Is this a problem with the stock carb that comes with these things I have been hearing about?
6. Am I still in the break in phase to the point where I should just run it when I can until it shows that it is broke in and the performance will show itself? (Most saws I ran required 8 tanks of fuel threw them before tuning)
Thanks ahead of time and will be awaiting your answers and/or possible solutions....
~Cy