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The middle part is much wider ? thanks for that now we all know what your talking about. There is a bore spec and the venturi spec, what arw you talking about and measurements would be nice too.
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I'll try to get you some caliper measurements tomorrow. Its late for me. Best way I can explain it for now is if you look inside a walbro carb you will notice a bump inside on the aluminum part. The Rovan has a wider opening inside. I would have to imagine that its also jetted bigger.The middle part is much wider ? thanks for that now we all know what your talking about. There is a bore spec and the venturi spec, what arw you talking about and measurements would be nice too.
I can confirm that. I can also confirm that the 1191 performs better than the 1107 in my 36cc engine with exact same tune.I'll try to get you some caliper measurements tomorrow. Its late for me. Best way I can explain it for now is if you look inside a walbro carb you will notice a bump inside on the aluminum part. The Rovan has a wider opening inside. I would have to imagine that its also jetted bigger.
Oh no paper came in the box as it was the complete engine, does the carb alone comes with a manual about the carb settings??L- 1 1/4
H- 2 1/4
I have the same engine and carb. Its also on that paper that was in the box.
Could it be possible the 1191 comes with a spiral diaphragm? Probably would wanna see the blueprint.I can confirm that. I can also confirm that the 1191 performs better than the 1107 in my 36cc engine with exact same tune.
The engine starves and bogs down quite a lot when I blip the throttle with the 1107 until it warms up 4 minutes later, I have to richen up the mix so much to prevent this from happening that engine just wont perform good.
None of this happens with this 1191 so Im actually very happy with it.
Oh no paper came in the box as it was the complete engine, does the carb alone comes with a manual about the carb settings??
I haven't seen the point in the primer bulb, but the spiral diaphram is legit. I like it.Think ill get those upgrades
Yeah I have a few in circulation. Both the 1107s have them, then a 668 on the weed eater, have them in a few of the smaller saws as well.I have one in this car??????
View attachment 68641
I haven't seen the point in the primer bulb, but the spiral diaphram is legit. I like it.
Yeah I have a few in circulation. Both the 1107s have them, then a 668 on the weed eater, have them in a few of the smaller saws as well.
Good! So it probably is my carb that has some issue
Purge bulb. It doesn't prime anything, it purges the air out of the carb. The primer system is different in walbro carbs.Did you check other stuff ,like the carb throat gasket ,tank pressure ,an does the primer bulb fill
up with gas when pushed?
Ah I see!...Purge bulb. It doesn't prime anything, it purges the air out of the carb. The primer system is different in walbro carbs.
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