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using tiny tach

#1

P

pete g

hi all, just read an article about a small tach used to carbs. its called tiny tach and sells for around $50. it seems you tune the carb by using rpm. could someone explain how i could use this tach to tune 2 cycle walbro carbs?


#2

M

motoman

pete g said:
hi all, just read an article about a small tach used to carbs. its called tiny tach and sells for around $50. it seems you tune the carb by using rpm. could someone explain how i could use this tach to tune 2 cycle walbro carbs?
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Hi Pete. Just read your thread. I don't own a tiny tach but it would be handy also to confirm proper wide open throttle adjustment on my ride- around after rebuild. Anyway ,to hazard a guess about your question maybe the tiny tach is used for rich- lean adjustment of the lo-high jets. Your ear might serve just as well as you listen to rise and fall of the warmed-up engine. Motoman :smile:


#3

E

Elias40

motoman said:
Hi Pete. Just read your thread. I don't own a tiny tach but it would be handy also to confirm proper wide open throttle adjustment on my ride- around after rebuild. Anyway ,to hazard a guess about your question maybe the tiny tach is used for rich- lean adjustment of the lo-high jets. Your ear might serve just as well as you listen to rise and fall of the warmed-up engine. Motoman :smile:
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Ok, You can beat me up for this one, But, aren't small engine's maneto(s) triggered by the flywheel each revolution, creating a wasted spark scenario, so 2 or 4 cycle wouldn't make any difference?


#4

M

motoman

Elias40 said:
Ok, You can beat me up for this one, But, aren't small engine's maneto(s) triggered by the flywheel each revolution, creating a wasted spark scenario, so 2 or 4 cycle wouldn't make any difference?
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Sounds right, but I can't remember how they are hooked up. Vague recollection maybe firing pulse dectection (vibe like knock sensor=piezoelectric). ??? Not sure


#5

B

Buckshot 1

:smile: the best Tiny Tach for you to use, would be DTI-FT100, fast tach wireless good for both 2 and 4 cycles up to 20,000 rpms.


#6

M

motoman

Buckshot 1 said:
:smile: the best Tiny Tach for you to use, would be DTI-FT100, fast tach wireless good for both 2 and 4 cycles up to 20,000 rpms.
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I/m tempted to tune my Intek for 20,000. Think she'll hold up?:laughing:


#7

P

pile81

Echo makes a decent on and does stihl


#8

B

Buckshot 1

motoman said:
I/m tempted to tune my Intek for 20,000. Think she'll hold up?:laughing:
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:laughing: Go for it. I would like to see how many r's before it blows. Then I will know not to turn one over the blow up number.


#9

Flintmotorsports

Flintmotorsports

we have a motor that will do 9.000 rpm's and handle it like a champ and keep running.


#10

B

Buckshot 1

:thumbsup:And what would that engine be?


#11

Flintmotorsports

Flintmotorsports

12.5 HP Briggs and Sratton flat head.


#12

M

motoman

Buckshot 1 said:
:laughing: Go for it. I would like to see how many r's before it blows. Then I will know not to turn one over the blow up number.
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Buckshot, flintmotors says I can . I can see it now. the craftsman /intek becomes a hover craft... just before it blows :laughing:


#13

066

066

Flintmotorsports said:
12.5 HP Briggs and Sratton flat head.
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I bet that exhaust glows red in the dark!:eek:


#14

Flintmotorsports

Flintmotorsports

What exhaust it is a empty muffler and it shoots out flames at idle


#15

pugaltitude

pugaltitude

Our Briggs and Stratton service manager used to be a mechanic for small dragster racing and were using the briggs 5hp quantum engine.
He tuned them up to about 10000rpm and 25hp.
They would last 45 secs from start of run to end line before needing reduilt.
Conrods just exploded.


#16

Flintmotorsports

Flintmotorsports

wow we race circle track so it does 9.000 rpms for about 3 seconds it will lift the inside tire right off the ground on a racing lawnmower the orange one in my avatar. it is a hand full to drive but it is alot of fun


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