new dolmar 510 mixture screws epoxied

[bikesandcars]

I just ordered / received a Dolmar 510 after reading many positive reviews about the saw.

None of the reviews or posts that I saw here or other places mentioned that the mixture adjustments were epoxied over. Even the instruction manual neglects to mention this.

I've run the saw briefly and it seems to carburate OK, but I'd like to mod the exhaust and tune it

Any advice on how to remove the epoxy is appreciated. I tried to use the search function but I couldn't find a thread with a before / after pic or an explanation. I don't want to ruin the carburetor if I can help it.

Thanks!

View attachment 260658

 

[mikefunaro]

I just ordered / received a Dolmar 510 after reading many positive reviews about the saw.

None of the reviews or posts that I saw here or other places mentioned that the mixture adjustments were epoxied over. Even the instruction manual neglects to mention this.

I've run the saw briefly and it seems to carburate OK, but I'd like to mod the exhaust and tune it

Any advice on how to remove the epoxy is appreciated. I tried to use the search function but I couldn't find a thread with a before / after pic or an explanation. I don't want to ruin the carburetor if I can help it.

Thanks!

View attachment 260658

Hi this was covered briefly on here somewhat recently. It's a new development that affects several dolmar models.

Basically instead of doing limiter caps or something similar another acceptable fix in the EPAs eyes is to epoxy the carburetor screws shut.

The dealers on here 166 or cuttinscott reported that in the event that the saw fails to meet proper tune in its epoxied state dolmar will install an adjustable carb under warranty.

I assume for this to happen that your dealer would have to declare the saws tune improper/hazardous to the P&C health.

I would talk to your dealer first. You may end up having to purchase a new carb on your own, which is not the end of the world but is an added expense which starts to bring you closer to the price of a 346 or something like that. I think it's ridiculous that they have chosen to use this method of restriction. Who knows why they would.

 

[bikesandcars]

Well, I found out there is no way to remove the epoxy in a way that allows the screws to be adjusted... I guess you could get a dremmel in there... maybe...

I bought this from an ebay power equipment retailer, I've emailed them to see if we can work something out.

View attachment 260664

 

[barneyrb]

Heat is the only thing that destroys epoxy.....

 

[7sleeper]

Use one of the micro torches. As mentioned above heat is the only method for destruction of epoxy.

7

 

[bikesandcars]

Use one of the micro torches. As mentioned above heat is the only method for destruction of epoxy.

7

Thanks, I'll give that a try and report back with pics

 

[166]

The latest production 351, 421, 510, 5105, and 6400 have switched back to adjustable carbs.

 

[indiansprings]

Dolmar rep just came in our dealership trying to get us to pick up the line, I asked him about the epoxyied carbs after reading on them here, he stated just what 166 stated in his post, they switched back to adjustable carbs, but stated if anyone drilled out or removed the epoxy they voided their warranty and could be subject to a 25k fine. He stated dealers were instructed to replace the carb if the epoxied carb was too lean not to drill out the epoxy and adjust. So depending on how stringent your dealer is, you could have just voided your warranty.

 

[bikesandcars]

Dolmar rep just came in our dealership trying to get us to pick up the line, I asked him about the epoxyied carbs after reading on them here, he stated just what 166 stated in his post, they switched back to adjustable carbs, but stated if anyone drilled out or removed the epoxy they voided their warranty and could be subject to a 25k fine. He stated dealers were instructed to replace the carb if the epoxied carb was too lean not to drill out the epoxy and adjust. So depending on how stringent your dealer is, you could have just voided your warranty.

Thanks for the info. Not going to do anything else and will just keep it stock

By the way.how are dolmar owners gonna get fined 25k for adjusting the mixture on a chainsaw...something you could always do before and apparently now can again...

This forum is filled with articles on modding chainsaws and removing emissions...i just wanted to adjust my mixture. Surely in america i can still work on my own saw if i want to

 

[discounthunter]

not to side track ,but a long time ago i had a muffler shop tell me its a 10k fine to remove the catconverter off a vehicle( even if i did it). they would have a massive coronary if they looked under the vehicles down here,lol.

 

[w8ye]

I have a lot of chainsaws and there are no tabs on the limiters nor screens in the mufflers. The EPA would have a fit?

My smallest chainsaw, a Stihl 025 will set the bark on fire when buried in pine. It would do the same with a screen on the muffler. So what's the difference.

If I was cutting in a tender wood area, I would probably use a screen on the muffler?

They have been that way - some for many years - Have not seen the EPA. Just some do good'r commenting at times.

 

[Andyshine77]

You could try cutting off the metal housing and break up the epoxy, I think a few have done this with success.

I don't think the EPA would really come after an individuals like ourselves as we're .01% of the market. I'm sure the EPA, OSHA, USFA and a few others wouldn't care much for saws like this.
<object width="640" height="360"><param name="movie" value="http://www.youtube.com/v/U2S0I9cwS4s?version=3&amp;hl=en_US&amp;rel=0"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/U2S0I9cwS4s?version=3&amp;hl=en_US&amp;rel=0" type="application/x-shockwave-flash" width="640" height="360" allowscriptaccess="always" allowfullscreen="true"></embed></object> Again it's .01% of the market or less. Yes it's a bs number I pulled out of my backside, but it sounds about right to me.:msp_biggrin:

 

[galde]

Most epoxies get soft at around 300 deg F. I haven't encountered the epoxied carb screws, but I have used heat to soften epoxy so I could disassemble things. As long as no plastic is involved it shouldn't be that difficult.

 

[a. palmer jr.]

I know that this is an old thread but I just encountered another Dolmar 510 that owner says doesn't run right and noticed the Zama carb has the metal sleeve where the adjustment screws go and it's filled with epoxy. I'm wondering if any of you tried melting the epoxy and how it turned out. Thanks!