Walbro or Tillotson Carb
#1
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Walbro or Tillotson Carb
I recently bought 2 used ZDZ80 Supers. One has a Tillotson carb and the other has a Walbro WJ-71. I want the best combination in the plane I am putting one of the engines in. Which carb should I use? I have a couple older ZDZ 80's with the Walbro WJ-71's and they run pretty good. Has anyone found the Tillotson to be an amazingly good carb? Is it far better than the Walbro?
#3
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RE: Walbro or Tillotson Carb
Tillotson carbs are now made in Ireland. they used to be made in the USA many years ago.
IMHO they are as good as Walbro and Zama but are not as common anymore.
I have a couple chainsaws with Tillotson carbs and I have not had any trouble with them that I would not have had with a Walbro for the last 13 years.
IMHO they are as good as Walbro and Zama but are not as common anymore.
I have a couple chainsaws with Tillotson carbs and I have not had any trouble with them that I would not have had with a Walbro for the last 13 years.
#5
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RE: Walbro or Tillotson Carb
I rebuilt one of mine last year and got the repair kit at the local chainsaw dealer. He had it on the shelf.
I see them advetised on the internet all the time by various distributors
Tillotson has a web site with charts like Walbro and Zama that lists all the Tillotson carbs, their setttings, and the pats numbers.
http://www.tillotson.ie/
I see them advetised on the internet all the time by various distributors
Tillotson has a web site with charts like Walbro and Zama that lists all the Tillotson carbs, their setttings, and the pats numbers.
http://www.tillotson.ie/
#6
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RE: Walbro or Tillotson Carb
ORIGINAL: w8ye
I have a couple chainsaws with Tillotson carbs and I have not had any trouble with them that I would not have had with a Walbro for the last 13 years.
I have a couple chainsaws with Tillotson carbs and I have not had any trouble with them that I would not have had with a Walbro for the last 13 years.
#8
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RE: Walbro or Tillotson Carb
Some people complain that Tillotson carbs are more difficult to adjust than a similar sized Walbro. No first hand experience here with a Tillotson in an airplane but I have worked with several of them in saws many years ago and couldn't see any differences for that application.
#11
RE: Walbro or Tillotson Carb
ORIGINAL: huck1199
Don't understand what you mean,
ORIGINAL: w8ye
I have a couple chainsaws with Tillotson carbs and I have not had any trouble with them that I would not have had with a Walbro for the last 13 years.
I have a couple chainsaws with Tillotson carbs and I have not had any trouble with them that I would not have had with a Walbro for the last 13 years.
#12
RE: Walbro or Tillotson Carb
JUST SAYING WHAT YOU MEAN NOW
ANY DAY ANY TIME NOW
JUST MEANING WHAT YOU SAY NOW
LA LA LA LA ..... NOW
OR SOMETHING LIKE THAT ! NOW !
ANY DAY ANY TIME NOW
JUST MEANING WHAT YOU SAY NOW
LA LA LA LA ..... NOW
OR SOMETHING LIKE THAT ! NOW !
#13
RE: Walbro or Tillotson Carb
ORIGINAL: captinjohn
    JUST SAYING WHAT YOU MEAN    NOW
     ANY DAY ANY TIME                            NOW
     JUST MEANING WHAT YOU SAY    NOW
       LA  LA LA LA .....                                NOW
      Â
     OR SOMETHING LIKE THAT !          NOW !  [img][/img]
    JUST SAYING WHAT YOU MEAN    NOW
     ANY DAY ANY TIME                            NOW
     JUST MEANING WHAT YOU SAY    NOW
       LA  LA LA LA .....                                NOW
      Â
     OR SOMETHING LIKE THAT !          NOW !  [img][/img]
"Don't understand what you mean, "[8D]
#14
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RE: Walbro or Tillotson Carb
Tilotson carbs are fine.. Way way back a couple of manufacturers converting chainsaw motors were using the tillitson carbs that came with the powerheads they were buying.. These carbs had the RPM limiter circut start to kick in inflight and make the motor run erratic.. Once they figured out what was happening they started buying walbros cause they were cheaper instead of buying the correct Tilotson carb for what they were trying to do... This seemed to start some myth that walbros are better...
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RE: Walbro or Tillotson Carb
Have had 2 friends one with a 3w 106 and one with a ZDZ 80 both had terrible starting issues an tuning issues once running using a starter it would tune and run great... Shut it down it wont restart with out adjusting the tilitson carbs... Both got fed up bought a walbrough and none have had an issue since
#16
RE: Walbro or Tillotson Carb
ORIGINAL: matt43
Have had 2 friends one with a 3w 106 and one with a ZDZ 80 both had terrible starting issues an tuning issues once running using a starter it would tune and run great... Shut it down it wont restart with out adjusting the tilitson carbs... Both got fed up bought a walbrough and none have had an issue since
Have had 2 friends one with a 3w 106 and one with a ZDZ 80 both had terrible starting issues an tuning issues once running using a starter it would tune and run great... Shut it down it wont restart with out adjusting the tilitson carbs... Both got fed up bought a walbrough and none have had an issue since
#18
My Feedback: (19)
RE: Walbro or Tillotson Carb
ORIGINAL: w8ye
Besides the Dolmar chainsaws with Tillotson carbs, I have a couple Stihl chainsaws with Tillotson carbs that I have never worked on.
Besides the Dolmar chainsaws with Tillotson carbs, I have a couple Stihl chainsaws with Tillotson carbs that I have never worked on.
#19
My Feedback: (19)
RE: Walbro or Tillotson Carb
ORIGINAL: matt43
Have had 2 friends one with a 3w 106 and one with a ZDZ 80 both had terrible starting issues an tuning issues once running using a starter it would tune and run great... Shut it down it wont restart with out adjusting the tilitson carbs... Both got fed up bought a walbrough and none have had an issue since
Have had 2 friends one with a 3w 106 and one with a ZDZ 80 both had terrible starting issues an tuning issues once running using a starter it would tune and run great... Shut it down it wont restart with out adjusting the tilitson carbs... Both got fed up bought a walbrough and none have had an issue since
#20
My Feedback: (16)
RE: Walbro or Tillotson Carb
ORIGINAL: Truckracer
w8ye, your knowledge base seems extensive and you often refer to chainsaws you own. Are you a saw collector? Or do you just use them often enough to need / want a variety? Just curious. I have often thought of collecting them myself.
ORIGINAL: w8ye
Besides the Dolmar chainsaws with Tillotson carbs, I have a couple Stihl chainsaws with Tillotson carbs that I have never worked on.
Besides the Dolmar chainsaws with Tillotson carbs, I have a couple Stihl chainsaws with Tillotson carbs that I have never worked on.
#21
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RE: Walbro or Tillotson Carb
ORIGINAL: spaceworm
Could W8YE mean that Walbro and Tillotson (and Zama) share a common sensitivity to dirt, and more importantly, to ethanol in the gasoline? Just my SWAG.
ORIGINAL: huck1199
Don't understand what you mean,
ORIGINAL: w8ye
I have a couple chainsaws with Tillotson carbs and I have not had any trouble with them that I would not have had with a Walbro for the last 13 years.
I have a couple chainsaws with Tillotson carbs and I have not had any trouble with them that I would not have had with a Walbro for the last 13 years.
I have both carb, and use 10% enthanol 89 oct with lawnboy ashless........NEVER had a problem with either.
Chris
#22
RE: Walbro or Tillotson Carb
Sometimes the best carb for your engine is not the one supplied by the manufacturer, sometimes there is nothing wrong with the carb or make, but simply the venturi size does not suit the engines design.
I have swapped "bad carbs" onto another brand engine and ended up with a great running engine and more rpm than what was supplied by the manufacturer.
I find its worth experimenting with diferent carb/engine set ups as the carb can make a huge difference to power output and how a motor runs.
I have swapped "bad carbs" onto another brand engine and ended up with a great running engine and more rpm than what was supplied by the manufacturer.
I find its worth experimenting with diferent carb/engine set ups as the carb can make a huge difference to power output and how a motor runs.