Title: Do I need to do anything to my carbs? Post by: blackvalkyrie on June 12, 2020, 12:06:02 PM i will be up in the Colorado Rockies next month..will the altitude affect my carbs?
Title: Re: Do I need to do anything to my carbs? Post by: 98valk on June 12, 2020, 12:47:56 PM thinner air means the carbs will go richer. turn the idle mixture screws close by half a turn, pretty sure that is what the manual states.
somebody else with more altitude experience should post soon. Title: Re: Do I need to do anything to my carbs? Post by: sandy on June 12, 2020, 02:11:31 PM I never changed anything. Been from sea level to over 11K feet. Ran great.
Title: Re: Do I need to do anything to my carbs? Post by: burple05 on June 12, 2020, 02:15:24 PM I've ridden all over Colorado. RMNP, Pikes Peak, Independence Pass, Million Dollar Hwy. I never had a problem with my carbs on my Valk. I'm just above sea level in Arkansas. If anything I run a little rich at home according to my plugs. Might notice a very slight power loss at extremely high altitudes. Just my experiences. Ride safe.
Peace, Ron. Title: Re: Do I need to do anything to my carbs? Post by: Bighead on June 12, 2020, 03:37:15 PM I never changed anything. Been from sea level to over 11K feet. Ran great. +1 it will run fine the MPG may drop a bit but it will run fineTitle: Re: Do I need to do anything to my carbs? Post by: .. on June 12, 2020, 03:54:03 PM Don't touch a a thing. I could tell there was a loss of power riding up Mt. Evans.
Use 85 octane while you are riding up and down the peaky bits. Title: Re: Do I need to do anything to my carbs? Post by: Vermonter on June 12, 2020, 06:58:14 PM These carburetors are constant velocity carbs that should to a very large extent self-adjust to different air densities at different altitudes. That's under conditions above idle; idle is just a fixed setting. But presumably you don't expect to leave it idling a lot, and it'd be surprising that altitude would throw your idle completely out of whack. Ride and enjoy.
Title: Re: Do I need to do anything to my carbs? Post by: 0leman on June 13, 2020, 08:17:00 AM I believe all internal combustion engines lose power at higher elevation. That is pretty much a fact. Our Valks are no different. Just figure you have less power when you go to go around a slow poke.
I live at 4K elevation, ride up to 7' every so often. I do notice the reduction in power, but then when I ride down to 2K or less also notice the difference. ;D Just leave your carbs alone (as mentioned above) and enjoy the country side. Title: Re: Do I need to do anything to my carbs? Post by: gordonv on June 13, 2020, 10:02:40 AM If you're passing through, do nothing. If you are riding in an area of different elevation, then buy fuel locally.
Check the pumps, the Octane of fuel grades will change based upon local conditions. Riding from Vancouver BC sea level, all the way to Spearfish/Billings InZanes, never had issues with the bike. Fuel would have been replaced every 200 miles on those trips, with local riding for the week in those areas. Title: Re: Do I need to do anything to my carbs? Post by: blackvalkyrie on June 13, 2020, 04:30:50 PM Thanks to all of you..appreciate it :cooldude: :cooldude:
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