Husqvarna 262 and HDA 87

[Simondo]

HDA 198 non acc pump on 357 and a HDA 87 on the 262...they are not on the same as i hope you can see from the pics.

 

[drf256]

I'll try to post pics tonight. I have both jugs off saws.

 

[Tor R]

HDA 198 non acc pump on 357 and a HDA 87 on the 262...they are not on the same as i hope you can see from the pics.
View attachment 31677 View attachment 31678

in some ways they are Simon.
The choke lever on 198 point down, but you can screw it of and mount it upward.
Choke system will work backward, thats all

 

[Simondo]

in some ways they are Simon.
The choke lever on 198 point down, but you can screw it of and mount it upward.
Choke system will work backward, thats all

There seems more to it than that Tor. The trigger trip/hold/choke components are all on the right on the 357 with only a ring arm for the blue choke leaver to connect to on the left.

 

[Red97]

You can more than likely swap the shafts out of the less desirable 262 carb into the 198, using the 198 plates of course.

 

[Tor R]

There seems more to it than that Tor. The trigger trip/hold/choke components are all on the right on the 357 with only a ring arm for the blue choke leaver to connect to on the left.

There is less difference then you think Simon.

87 to left and 199 to right.

You need to make a throttle linkage system ala 346/357



as you see, the 199 choke level can be taken off, you can mount it back and it point upwards. you can mount the choke system as your 262 use, the only difference will be that your choke button work backwards, that's all


and of course, maybe we one day make a more smooth choke button so everything work correct
if we take the route by rebuilding the linkage systems we dont need to go inside the carb at all.

This by using 3xx carbs on 2xx serie saws is something David Young told me in another thread long time ago, 346 carb on 242

 

[Simondo]

Yup I can see what you do there..Only thing i would need to take into consideration it the choke issue . I have to hand a saw back to a customer with the controls the same as standard ..bit different to doing it for your own use .

 

[Tor R]

Yup I can see what you do there..Only thing i would need to take into consideration it the choke issue . I have to hand a saw back to a customer with the controls the same as standard ..bit different to doing it for your own use .

i dont think a customer care if it's an 120 or 87 carb, it's more we who always want to take the little extra out of those saws we build.
I'm no porter, dont know whitch jug is the golden one,and whitch one who has the biggest potential, or how they act with 87 vs 120 carb.

 

[drf256]

On the outside I agree.
The inside is what I was referring to in my previous post. Big difference.

I'd really like to see what the inside of the transfers look like. From the outside it appears more slanted or angled than mahle as usual.

The angle would make a difference.

I'm gonna try to post those pics soon, but they may not do the shape justice.

With the same 48mm bore and the same external dimensions, I cant see how the tunnels could differ that much.

 

[rjames]

When the carb is finished and makes its trip to me, I'll do a comparison video. Same wood/bar/chain etc. to show the differences.

Gotta watch it though, some have said that this stuff gets addicting. I don't see it.

Randy swapped a 199 into a 262. It was the same bore size as the 87 I have here. He did a thread on the swap on this site.

I have a bunch of 262 jugs here, including a non-decomp KS. There's not much space between the case and the jug on a 262. If you've built one you know. Put the jug one backwards while you've got the degree wheel on it and it won't fit. The flywheel side tunnel has an indent in it for the flywheel. I'd venture to say that the tunnels are the same size in all of the jugs. There may be subtle differences in the shapes though.

I can tell you first hand that an 87 makes a PORTED 262 a different saw over a 120/144. On a stock saw, it very well may do nothing at all.

When we ran 3-262's at the CT GTG @paragonbuilder hosted, mine had a 144 on it while the other two saws had 87's. My saw was the slowest of the three by a bunch. I swapped in the 87 I bought and my saw was right in between the two saws. The saw with the lowest exhaust and the 87 was the fastest. All 3 were neck and neck to the point where a chain coulda made one outshine another.

I did buy the plates for the conversion. @super3 has done the job in the past. I have my 87 off the saw for measurements and comparisons for when I attempt it. @rjames is getting the first one for the 262 I ported for him.

Anyone know how to get the nozzle out of the carb?

 

[Simondo]

i dont think a customer care if it's an 120 or 87 carb, it's more we who always want to take the little extra out of those saws we build.
I'm no porter, dont know whitch jug is the golden one,and whitch one who has the biggest potential, or how they act with 87 vs 120 carb.

I think we are talking a bit at cross purposes Tor.. not a bother having a 198 or 87 as you say to the customer ...its the choke not working the right way round as you pointed out when you sub a 198/199 onto a saw that had a 87.

 

[Tor R]

I think we are talking a bit at cross purposes Tor.. not a bother having a 198 or 87 as you say to the customer ...its the choke not working the right way round as you pointed out when you sub a 198/199 onto a saw that had a 87.

my mistake Simon.

It feels a bit weird for me also with the choke position, I dont know if it will disturb me in work though, if I somehow will hit the choke level in work it's kinda hopeless. Else then that I guess I can get used to it.

The good thing I see with those 191&198 is that they are avaible at the moment.

 

[Red97]

my mistake Simon.

It feels a bit weird for me also with the choke position, I dont know if it will disturb me in work though, if I somehow will hit the choke level in work it's kinda hopeless. Else then that I guess I can get used to it.

The good thing I see with those 191&198 is that they are avaible at the moment.

Have you tried swapping the shafts between carbs? Instead of making the linkage work?

 

[Simondo]

my mistake Simon.

It feels a bit weird for me also with the choke position, I dont know if it will disturb me in work though, if I somehow will hit the choke level in work it's kinda hopeless. Else then that I guess I can get used to it.

The good thing I see with those 191&198 is that they are avaible at the moment.

Don't you fret my friend ,Its all good information Tor ...you have messed about with this situation more than me . Red97 says about swapping shafts...what do you think ?

 

[Tor R]

Have you tried swapping the shafts between carbs? Instead of making the linkage work?

No, I thought to order 87 shafts and give it a shot.
The closest Walbro dealer to me is based in UK

 

[Red97]

No, I thought to order 87 shafts and give it a shot.
The closest Walbro dealer to me is based in UK

Being the linkage is the same on all the 262's any shafts from a walbro equipped 262 should swap to the hda 198,199.

 

[Tor R]

Being the linkage is the same on all the 262's any shafts from a walbro equipped 262 should swap to the hda 198,199.

great information, I think I may have one 120 in parts someplaces.

 

[super3]

Not a photographer at all, lousy pics but to the naked eye it stands out like a sore peter.

The entrance to the tunnel in the non decomp alone is 1.050 vs .850 in the decomp cyl.

decomp cyl.



non

 

[SawTroll]

Not a photographer at all, lousy pics but to the naked eye it stands out like a sore peter.

The entrance to the tunnel in the non decomp alone is 1.050 vs .850 in the decomp cyl.

decomp cyl.

View attachment 31721

non

View attachment 31722

Are those cylinders both Mahle?

 

[drf256]

Didn't have time to get pics last night.

That's the flywheel indent. Obviously more restrictive on one of the two. Unless the non is a wider jug.

I'd rather have the decomp one for porting. More meat there to create direction ported.

I agree the the non-decomp has more area.

@super3 , can u post a pic of the PTO side transfer?