I had the sled out last weekend and it was running fine. I was riding through a meadow and carved a bit and the sled started to sputter and act up. Just thought the rear mount screen plugged up a bit, brushed it off and did not help. Ran this way until we left. It was almost like it was missing on one cyclinder. Since then the sled was thawed out in a warm shop, went over a bunch of connections and added a fuel injector cleaner, still no dice. Sled starts fine but just seems to sputter alot on bottom end and not run smooth. When opened up it pulls boost but it has way more lag. It is a MCX 260 kit. Any ideas on what to check out? I am new to this sled, how do you pull plugs? I also posted this in the yam 4 strk section. Any help appreciated.
'07 MCX Apex sputter
- Thread starter Brutis20
- Start date
are you getting any codes or flashing yellow lights, check you oil level, and your external fuel pump resistor for corrosion.
Issues
Check your exhaust donuts near your exhaust manifold, also check your fuel injector connections. I had a similar problem on my apex, felt like it was running on 3 cylinders, then under boost was really lagging. Took it in to a dealer and it was an easy fix.
Check your exhaust donuts near your exhaust manifold, also check your fuel injector connections. I had a similar problem on my apex, felt like it was running on 3 cylinders, then under boost was really lagging. Took it in to a dealer and it was an easy fix.
Z
Check your spark plugs.
Found it - exhaust pipe.
I elimiated evrything else and finally pulled the seat and gas tank off and sure enough the mag side exhaust pipe was broke on the flexing part of it just off the engine.
Got one on order and hopefully this was the only problem.
Thanks to everone for the help and directing me in the right direction.
I elimiated evrything else and finally pulled the seat and gas tank off and sure enough the mag side exhaust pipe was broke on the flexing part of it just off the engine.
Got one on order and hopefully this was the only problem.
Thanks to everone for the help and directing me in the right direction.
all 4?
Maybe do all 4 while you're in there?
Maybe do all 4 while you're in there?
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