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post #1 of 3 (permalink) Old 02-10-2016, 06:38 PM Thread Starter
Join Date: Jan 2016
Location: Oregon City, Oregon
Posts: 96
Riot Questions and Issues

Playing around with Riot I just got and have some questions aand found some issues I would appreciate input on:

1. Is there a recommended brand of coolant to use?
2. Mine is hard to start when cold and won't idle until it warms up some. Is this normal?
3.I occasionally see the yellow check engine light blinking but not always. How do I troubleshoot for issues? Manual says "see dealer". Could this be connected to hard starting and idle issue? Also smells like it is running rich. Seller told me he just cleaned MAP sensor. Wondering if this is an issue. I thought I read somewhere on here about re-flashing the ECU?
4. When driving and let off the throttle as buggy slows down I hear a high pitch squel sound from clutch/belt area.
Mainly does it as buggy is nearing a stop engine is returning to idle.

Thanks for any input!
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post #2 of 3 (permalink) Old 02-10-2016, 07:47 PM
Join Date: Jul 2009
Posts: 1,291
Re: Riot Questions and Issues

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post #3 of 3 (permalink) Old 03-07-2016, 07:03 PM Thread Starter
Join Date: Jan 2016
Location: Oregon City, Oregon
Posts: 96
Re: Riot Questions and Issues

Following up on my cold start and check engine light issues. I took the Riot to Randy at Weber Power. He ran the diagnosis software with no obvious issues or sensor faults. He did find that despite being an 09 Riot it had a very old file in the ECU. Not sure if it was changed by someone along the way or came that way from Redline. Randy re-flashed the ECU to the latest file and it made a big difference. Starts up and idles much easier now even when cold and there is no more check engine light flashing. Randy is a great guy and was a huge help. I highly recommend doing business with him.
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