Dolmar 64xx/73xx/79xx series, smurfs and solo 665/675/681 thread

[huskyboy]

More pics just because... I’m liking the looks of this Versacut bar I have on it. 20” well suited to the 64cc, but it will pull 24” no problem.

 

[tickbitintn]

If anybody was thinking about trying a 54mm BBK they are on sale in DOTD for $80...

Edit: saw again today and they are $70 not $80!


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[Yotaismygame]

What do you guys like to do with this exhaust port? Never seen one like it

 

[Wilhelm]

Blend it in.

 

[huskihl]

What do you guys like to do with this exhaust port? Never seen one like it
View attachment 183424

Kinda depends on how much you took off the base. And what you're gonna use the saw for. At 102, you may have to leave some of it. At 96 you may be able to get rid of the horizontal rib, but still have a rib running in and out on top and buttom

 

[mettee]

What do you guys like to do with this exhaust port? Never seen one like it
View attachment 183424

I like to port it.

 

[mettee]

I do that to rough in, after the base is done you can adjust like huskihl says. Keeps you safe and makes finishing easy. Leave the lip intact where it is all the way around the port opening. Cut it once you know timing.

Ridge is still there just blended in to the floor.

 

[huskyboy]

I do that to rough in, after the base is done you can adjust like huskihl says. Keeps you safe and makes finishing easy. Leave the lip intact where it is all the way around the port opening. Cut it once you know timing.

Ridge is still there just blended in to the floor.

That’s what I did to this one too. Also if one is using a 7900 muffler it restricts the larger 7910 port and you must match it.

 

[Yotaismygame]

I’ll have to look at my notes when I get home. But I’m thinking last time I went 102 with an intake at 80. I’d like to try 100 and 82 this time.

 

[huskihl]

Also if one is using a 7900 muffler it restricts the larger 7910 port and you must match it.

Only if you keep the stock spacer ring inside the muffler. Even the one from a xx10 gets pretty thin if you get rid of the ribs going in and out.

 

[Yotaismygame]

Muffler will get gutted. I was just wondering how to go about it. Sounds like just treat it like a normal exhaust port but blend the outer edge. Thanks for the help

 

[mettee]

 

[huskyboy]

The 47mm is underrated, everyone is quick to ditch it for the 50 and 52mm. Modded this one and got it to cut with a stock 572xp with a 20” bar. That’s about a 1 hp gain over stock.

 

[dustinwilt68]

Nice gains there Mason, great job.

 

[huskyboy]

I don’t doubt the 572 will run away from the 64 with a long bar, I already tested that. But with a 20” bar the 64 is stout. It’s not a 7900, but great for a 64cc.

 

[3browns]

With the kind and generous assistance of @Wilhelm I was able to go against the flow and downsize my bucking spikes to gain back some bar length

Before: Pretty much standard for the big Dollies, bad ass, but for my needs just too much...



After: For the cutting and felling I do what I THINK will give me back some bar length and work out just fine



Time will tell

 

[mettee]

3browns I'll take those big spikes if you are getting rid of them.

 

[3browns]

3browns I'll take those big spikes if you are getting rid of them.

Thanks for asking but it was a trade deal with @Wilhelm

If I try these new ones and like them then the old ones go to him for one of his 213 Dolmars...

 

[Wilhelm]

With the kind and generous assistance of @Wilhelm I was able to go against the flow and downsize my bucking spikes to gain back some bar length

Before: Pretty much standard for the big Dollies, bad ass, but for my needs just too much...

View attachment 183760

After: For the cutting and felling I do what I THINK will give me back some bar length and work out just fine

View attachment 183761

Time will tell

I am glad You got the spikes safe and sound.

Thanks for asking but it was a trade deal with @Wilhelm

If I try these new ones and like them then the old ones go to him for one of his 213 Dolmars...

Take Your time, make sure You like the small spikes.

I have them on my PS-6400 & PS-7300 and like them.
It all depends on the application they are being used to.

 

[cus_deluxe]

View attachment 183755 I don’t doubt the 572 will run away from the 64 with a long bar, I already tested that. But with a 20” bar the 64 is stout. It’s not a 7900, but great for a 64cc.

looks like you got into some knots with the 572 eh?