RESOLVED! Makita 7900 owners or Jay and other saw guros...I've got a question.

  • Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment.

    We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues.

    We promote the EFFICIENT, RESPONSIBLE, CLEAN and SAFE use of all fuels, whether renewable or fossil.
  • Hope everyone has a wonderful and warm Thanksgiving!
  • Super Cedar firestarters 30% discount Use code Hearth2024 Click here
Status
Not open for further replies.
think he's talking about the ignition to the flywheel gap....... I use a business card
 
[quote author="HittinSteel" date="1309222816"]think he's talking about the ignition to the flywheel gap....... I use a business card

I cant afford those, I steal match's on dollar beer night! ;-P
 
HittinSteel said:
think he's talking about the ignition to the flywheel gap....... I use a business card

Okay, gotcha...thanks for all the replies fellas, even if I can't get it fixed myself I really appreciate it.
 
Did you check the impulse line?
 
If there is any question about compression you can pull the muffler off, and see how the piston looks. Hope it is not like this one. (not mine)

[Hearth.com] RESOLVED! Makita 7900 owners or Jay and other saw guros...I've got a question.
 
Elim said:
If there is any question about compression you can pull the muffler off, and see how the piston looks. Hope it is not like this one. (not mine)

[Hearth.com] RESOLVED! Makita 7900 owners or Jay and other saw guros...I've got a question.


Wow never seen one that bad hopes its a wild thing?
 
Jutt77 said:
HittinSteel said:
think he's talking about the ignition to the flywheel gap....... I use a business card

Okay, gotcha...thanks for all the replies fellas, even if I can't get it fixed myself I really appreciate it.
J, you can borrow my 180C if you need to. Right now, I guaranteee it's gonna smoke your Dolkita in the cut! Let me know. (Sorry, just had'a) :-) :lol:
 
Beetle-Kill said:
Jutt77 said:
HittinSteel said:
think he's talking about the ignition to the flywheel gap....... I use a business card

Okay, gotcha...thanks for all the replies fellas, even if I can't get it fixed myself I really appreciate it.
J, you can borrow my 180C if you need to. Right now, I guaranteee it's gonna smoke your Dolkita in the cut! Let me know. (Sorry, just had'a) :-) :lol:

I like the 180 with a top handle PLease! :cheese:
 
wendell said:
If you're getting fuel, it probably isn't the impulse line but I'd check it, especially where it comes off the engine on the clutch side.

+1 on this. I just put the hd air filter on mine. It would start, but barely, and wouldn't stay running. When I pulled the top cover off, the line wasn't completely off the motor, but it was split on the end.
 
Beetle-Kill said:
Jutt77 said:
HittinSteel said:
think he's talking about the ignition to the flywheel gap....... I use a business card

Okay, gotcha...thanks for all the replies fellas, even if I can't get it fixed myself I really appreciate it.
J, you can borrow my 180C if you need to. Right now, I guaranteee it's gonna smoke your Dolkita in the cut! Let me know. (Sorry, just had'a) :-) :lol:

Hey BK - The thing is that the 180 could smoke it cause my $%^ saw still wont start!! I'll take another look at the impluse line. Otherwise, new carb will be here this week.

The problem is that the cylinder is getting absolutely flooded with fuel even after carb rebuild (new diaphrams) and adjustment. Seems like it has to be a carb problem? I removed and cleaned the metering needle and all of that stuff. Would a bad impulse line mean the saw would NOT be getting fuel?

Through this process, I did find a pretty handy tech guide: http://www.zamacarb.com/pdfs/TechGuide_2007.pdf
 
Elim said:
If there is any question about compression you can pull the muffler off, and see how the piston looks. Hope it is not like this one. (not mine)

Ouch! No I pulled the cylinder off and the piston still looks like new which it pretty much is (just got the 7900 P&C a few months ago).
 
Jutt77 said:
Beetle-Kill said:
Jutt77 said:
HittinSteel said:
think he's talking about the ignition to the flywheel gap....... I use a business card

Okay, gotcha...thanks for all the replies fellas, even if I can't get it fixed myself I really appreciate it.
J, you can borrow my 180C if you need to. Right now, I guaranteee it's gonna smoke your Dolkita in the cut! Let me know. (Sorry, just had'a) :-) :lol:

Hey BK - The thing is that the 180 could smoke it cause my $%^ saw still wont start!! I'll take another look at the impluse line. Otherwise, new carb will be here this week.

The problem is that the cylinder is getting absolutely flooded with fuel even after carb rebuild (new diaphrams) and adjustment. Seems like it has to be a carb problem? I removed and cleaned the metering needle and all of that stuff. Would a bad impulse line mean the saw would NOT be getting fuel?

Through this process, I did find a pretty handy tech guide: http://www.zamacarb.com/pdfs/TechGuide_2007.pdf

Last time I had a flooding issue that bad, I took the carb apart and found the metering needle spring was missing.
 
Yes, impulse line should mean no fuel. If it is getting flooded, I would agree the spring could be missing or the lever setting is way off.
 
Resolved!! Received my new carb today from Amicks, slapped it on, and I now have a perfectly running saw again. Not sure specifically what was wrong with the old carb but after changing the diaphrams I suspect metering needle, welsh plug, or something.

As always, thanks for all the replies fellas! Special thanks to BeetleKill for offering up a pity saw:)
 
Status
Not open for further replies.