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43XR70 · 07-03-2007, 09:42 PM

I added a pipe and UNI filter to my stock 70. I have adjusted the needle clip to every position so far with the same results. It runs best in the second position from the bottom. But in every position I have a very small hesitation when you crack the throttle from idle. If you crack it from any other position other than idle it rips. It just has a slight hesitation off idle(very slight). Messed with fuel screw and idle in every position. I think the main may need to be changed from stock. It sounds like it is starving for gas with almost a sucking noise. Is this the main? 88 kit is coming but my son is going to ride this weekend so I need to figure it out. Thanks in advance..

07-03-2007, 09:42 PM	#1 (permalink)
43XR70 PM Newbie Join Date: Jun 2007 Posts: 17	Help with stock 70 motor tune. I added a pipe and UNI filter to my stock 70. I have adjusted the needle clip to every position so far with the same results. It runs best in the second position from the bottom. But in every position I have a very small hesitation when you crack the throttle from idle. If you crack it from any other position other than idle it rips. It just has a slight hesitation off idle(very slight). Messed with fuel screw and idle in every position. I think the main may need to be changed from stock. It sounds like it is starving for gas with almost a sucking noise. Is this the main? 88 kit is coming but my son is going to ride this weekend so I need to figure it out. Thanks in advance..