Mac&Homelite
Addicted to ArboristSite
Man, not much for creature comforts on that one. [emoji51] Wonder how bad it is to use.
Vintage Chainsaw Collectors Lounge
- Thread starter Kensie1988
- Start date
Help Support Arborist Forum:
No need in having a throttle lever on the dash when the motor is right there, could have mounted it on there. Bet it was loud being you're leaning over it. How does the mower deck engage, direct drive?[emoji28]
Steve
Steve
Rope aimed at your crouch, you would know when the starter didn't catch, big wakeup call.
Steve
Steve
happysaws
Addicted to ArboristSite
Carb on the XL870 is a HS67A.
Tore the carb back apart, and set the inlet lever so that it just starts to move the needle when flush with the carb body. When resting, the lever is about 1/32" above flush with the carb.
Also un-blocked the governor.
We'll see how it works tomorrow morning...
Tore the carb back apart, and set the inlet lever so that it just starts to move the needle when flush with the carb body. When resting, the lever is about 1/32" above flush with the carb.
Also un-blocked the governor.
We'll see how it works tomorrow morning...
I've seen some walbro instructions say to set lever height with gasket in place
Steve
Steve
brandonstc6
Addicted to ArboristSite
I believe it is direct drive
Kensie1988
Vintage Saw Maniac
The carb on the 152 is an hs149B
Definitely different carbs but something's in common to be causing the same symptoms on both saws.
Steve
Steve
Mac&Homelite
Addicted to ArboristSite
Hmm, I'll have to give that a try to my mac 250 tilly HL.
Factory setting for the HS carb lever is flush with diaphragm chamber floor as per the attached pic
Chris
happysaws
Addicted to ArboristSite
I have seen that as well in the chainsaw service manual.
That is how I had it set, and it would still run lean at WOT, so I had to try something LOL
happysaws
Addicted to ArboristSite
Well, the XL870 still runs lean at WOT...
Next step is crank seals. [emoji17]
Next step is crank seals. [emoji17]
[emoji37]
Steve
Steve
brandonstc6
Addicted to ArboristSite
I have a husky 268 that is doing that and a 034 super
Sent from my iPhone using Tapatalk
Pressure and vacuum test time.
Steve
Steve
Kensie1988
Vintage Saw Maniac
Just picked up an awesome saw, pics coming soon.
Mac&Homelite
Addicted to ArboristSite
I better be impressed... Not that it takes much to make me impressed while at college.
I'm sure you guys like the long weekend, but I'm already sick of the long weekend here...
Kensie1988
Vintage Saw Maniac
I dont have a long weekend lol
Kensie1988
Vintage Saw Maniac
We shall seeI better be impressed... Not that it takes much to make me impressed while at college.
Just my 2 cents on the governor issue.
I have an HS-176 that was giving me the same gradual lean out at full throttle. The saw held good vac and pressure numbers. I blocked the governor off and all was well. I tried a few block off sequences and some didn't work. What did was;
1/4" OD piece of aluminum beer can punched out with a paper punch in the bottom of the governor hole
Next is the copper washer / gasket
Last the governor in with some thread sealant (I used Motoseal)
I found if the washer went in first it didn't block the governor off.
That solved the issue.
The other thing I always look for on HS carbs is for a worn throttle shaft. That will leak air at different rates in different positions and cause all kinds of odd symptoms. The ones I've found that were worn did not have any wear in the carb body.
