Just went out testing my losi 5ive 2.0 with a 34 esp. Brand new 1107 and when I try to tune the high it bogs if I try to get it below 2 turns. My high needle usually ends up between 1 1/2 &1 3/4. At 2 it accelerates ok but just seem it runs out of steam, more like flat at wot.
Carb issues?
- Thread starter Gordo...
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I'd suspect your pop pressure is off and or you have an air leak somewhere
Small spring inside carb. From factory they can be as high as 36 psi
Pop off pressure needs to be around 15/17 psi. 20 psi max. This mod offers better and quicker throttle response
The rough way is to cut 3 turns from each end of the spring ends. But you don’t know what pressure rating this gives
You need a pressure vacuum tester and very small cutter
YouTube walbro pop of spring mod. Or sometime like it. U should find it
I’ve done this to a few of my carbs. Fiddly work but works
U may also need to look at where ur metering lever sits. It should sit flush to carb face. U can buy a tool to do this
Again. YouTube is yr friend
Pop off pressure needs to be around 15/17 psi. 20 psi max. This mod offers better and quicker throttle response
The rough way is to cut 3 turns from each end of the spring ends. But you don’t know what pressure rating this gives
You need a pressure vacuum tester and very small cutter
YouTube walbro pop of spring mod. Or sometime like it. U should find it
I’ve done this to a few of my carbs. Fiddly work but works
U may also need to look at where ur metering lever sits. It should sit flush to carb face. U can buy a tool to do this
Again. YouTube is yr friend