Carbtune Accuracy?????

[TK3333]

I purchased the Carbtune several months ago and set it up as specified in the instructions. I sync'd the carbs and got the guages damn near perfect. Just to see how accurate it was, I switched the hoses around and the gauges were all over the place. Has anybody else noticed this? I made sure all the restrictors were the same length and installed in the hoses in the same locations. I'm thinking the tool is less than perfect or mine is defective. I e-mailed Morgan about this and am waiting for a reply, but figured I'd get some feedback on here in the meantime.

Thanks TK

 

[dannymax]

Hmmm, not sure what to make of that....did you try taking a reading on each of the 4 hoses from the same carb?

 

[TK3333]

no, thanks. I'll try that tomorow after work and see what happens. It is running better than it was. I was just surprised I didn't get the same readings after I switched the hoses. The differences weren't extreme, just all over compared to what I had.

 

[naughtyG]

That's interesting, it'll be enlightening to hear what carb tune have to say about it.

I wonder if there'd be a way to connect all four tubes to the same vacuum source (maybe a 4-way 'T') to check that all four bars read the same?

Also if they didn't, I'd also love to know if there'd be a way to calibrate it!

 

[gamorg02]

if mine did that i'd check it with my double ball bearing one.

 

[KosRider]

I wonder if there'd be a way to connect all four tubes to the same vacuum source (maybe a 4-way 'T') to check that all four bars read the same?QUOTE]

That's exactly the first thing I do with mine before hooking the lines up individually to each carb. Use a 5 way "T" to verify all the tubes read the same at the same time with one vac source. Done this well over a dozen time now, and all four tubes have read the same every time.

 

[TK3333]

Just tried your suggestion Dan. Tried all four hoses on #1 carb and got the same reading of 18. Tried it again on #2 carb and all gave the same reading of 16. It is NOT the Carbtune. The tool is right on. I must be tool that is off. No worries, syncing again. Thanks. TK

 

[dannymax]

Good deal....that eliminates one of possibilities. :clapping:

Keep us posted on the outcome of the sync. unk:

 

[SpecOps13]

Thanx for the answer. I was just thinking about ordering one. I have several other styles but liked PATMAX's CT a lot when I tried it.

 

[alorio1]

I have had my Carbtune for about 10 years and just recently the hoses started collapsing up where they plug into the unit itself. I just ordered a new set of hoses and restrictors from them, I don't remember the cost of the new hoses but they were not that expensive.

 

[TK3333]

Carbs sync'd. Max running good. Not sorry I bought the Carbtune one bit. They responded to my email in less than 24 hrs wanting to help. I guess I didn't have it as close as I thought I did and when I switched the hoses around it made the difference more noticeable. Time to ride. TK