 Carburetor throats stopped matching |
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| 98101 |
 Jan 7 2018, 11:07 PM
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#1
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Michael in Seattle  Group: Members Posts: 373 Joined: 7-October 17 From: Seattle, WA Member No.: 21,495 Region Association: Pacific Northwest  |
I pulled the carbs to install a new linkage, and blew out the jets while I was at it. The two carbs are synchronized with each other better than they've ever been, but now there's a discrepancy within one of the carbs (DRLA 45s). I'm wondering if I bent a throttle plate, or if there's something else I did that could cause this?
The lower one is cylinder 3, if that matters. There was a slight discrepancy before, but now they're further apart.  |
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| nditiz1 |
Jan 8 2018, 12:37 PM
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#2
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Senior Member Group: Members Posts: 1,190 Joined: 26-May 15 From: Mount Airy, Maryland Member No.: 18,763 Region Association: MidAtlantic Region 
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Check the air bypass. I was having a similar issue. If the values were within 1/2 unit it says don't worry, but yours is more than that. Something you might want to check is the velocity stacks. Before I bought CB ones the set I had on there were not flush with the tops on the carb plate. I put tape around it and sure enough air was escaping between the carb plate and velocity stack. Try taking the stacks off and put the meter right into the carb throat. |
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Posts in this topic
98101 Carburetor throats stopped matching Jan 7 2018, 11:07 PM
stugray An intake leak would do that.
Spray some WD40 (or... Jan 7 2018, 11:34 PM
98101
An intake leak would do that.
Spray some WD40 (o... Jan 7 2018, 11:38 PM 98101 With the carburetor on the engine, I was not able ... Jan 8 2018, 06:02 AM ottox914 Back to basics but did you check the adjustment sc... Jan 8 2018, 07:04 AM rhodyguy Are the air by pass screws in the same adjustment ... Jan 8 2018, 08:19 AM rhodyguy I just finished up trying to find the pre-install ... Jan 8 2018, 12:09 PM 98101
I just finished up trying to find the pre-install... Jan 8 2018, 08:13 PM 98101 Thank you everyone. Indeed the air bypass screws ... Jan 8 2018, 08:06 PM MarkV Strange? Mine are off by a little from one throat ... Jan 8 2018, 08:13 PM MarkV
Thank you everyone. Indeed the air bypass screws... Jan 8 2018, 08:16 PM MarkV I only have one meter so this may seem obvious ...... Jan 8 2018, 08:26 PM 98101
I only have one meter so this may seem obvious ..... Jan 9 2018, 06:02 PM rhodyguy 3 read just to 3 and 1 to just past 5 with the by ... Jan 8 2018, 08:52 PM MarkV
I only have one meter so this may seem obvious .... Jan 9 2018, 08:24 PM 98101
Sounds like you are getting close to having it di... Jan 9 2018, 11:36 PM |
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