Carb hose and other sundry questions

Started by bdfinally, April 04, 2015, 09:53:24 AM

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bdfinally

So just run a length of 5/16 from the manual petcock to the carbs?
The tyranny of the rat race is not yet final...HST

koko64

Yep, give it a shot. You'll need a fullish tank without the pump. You never know, some E fuel may have eaten a pump membrane, but I'm just guessing. It's just to rule it out so you're sure what it isn't before you have to go back to the shop or pull the carbs again.
Be worth asking what they set the float levels at, don't tell 'em what it should be, just ask out of curiosity. I know I'm cynical :P.
2015 Scrambler 800

bdfinally

Question...would the rubber hose on the air box not being thoroughly around the carb throat and tight be a cause of this high speed sputter?
The tyranny of the rat race is not yet final...HST

koko64

Honestly not sure. Its possible. Could upset things with the CV system. Fix that and rule it out, then if it doesn't help do the bypass tests.
2015 Scrambler 800

bdfinally

Put some new vent hoses on carbs and re-routing those back behind the vert cylinder. Looks like one of them might have been pinched under the air box/battery tray. Checked to see how nasty the little carb fuel filter might be...there isn't any in there. Problem?
The tyranny of the rat race is not yet final...HST

koko64

They are often removed, but no issue if you have a good fuel filter. I reckon they're just another blockage opportunity.

Pinched hose could have easily stopped one carb slide rising. Test the bike now, good chance you've found it.
2015 Scrambler 800

bdfinally

Looks like the latest problem was a pinched vent hose. New hoses, new routing and the springs cannibalized out of the original fuel lines seems to have solved the problem. Thanks Koko, DP, Howie and others for suggestions/guidance. [bow_down]
The tyranny of the rat race is not yet final...HST