Dec 18, 2024 · The 858's have an idle air control valve (finally) so they can control idle speed via the IAC and not purely off timing like other 2s rigs. Like stated above, depending on system temps they'll …

Dec 11, 2024 · #1 Check the power valve cable and bend the bracket if needed (power valve cable gets hung up from the inner cable rubbing, throws the fault code and causes bogs) #2 Check the exhaust …

Dec 23, 2024 · High idle HELP!!! Tags arctic cat carbs help high idle idle Jump to Latest 794 views 3 replies 2 participants last post by lewiscarbogast Dec 23, 2024

Dec 7, 2024 · I rode an 858 Last year and agree on the excessive vibration at idle. To my eye the G8 gauge was harder to thumb thru the menus at idle because of this condition. Did not notice any …

Will at Velocity Sled Performance has found the culprit to the dreaded Catalyst 858 low RPM issues! After putting many miles on this to confirm, we're ready ...

Nov 28, 2018 · Supposedly arctic cat has just finished the reflash for the 2018 to address the flame throwing and they believe it will fix my idle problem. Was told they just started flashing this week and …

Dec 27, 2013 · 1980 arctic cat jag 3000 F/C (with 1990 prowler suspension and rubber track)340 1981 citation 4500 suspension and track swap from 1988 formula mx, twin straight tune pipes, ported and …

Dec 2, 2024 · I got my 858 mc out for the first time this weekend. Put on 33 miles and now have 3.5 hours. The problem is it won’t rev above 6500 still. It did go to 8k 3 times for about 2 seconds each …

Dec 11, 2024 · #1 Check the power valve cable and bend the bracket if needed (power valve cable gets hung up from the inner cable rubbing, throws the fault code and causes bogs) #2 Check the exhaust …

Feb 2, 2025 · So the poor performance of the 858 is really starting to get to me. The 7000 rpm wall is super frustrating and strips so much performance and fun factor away from the sled. I just watched …