Tecumseh stage 1 mods

[james123]

Hi there

Basically am planning to take off stock exhaust and replace with a header . I have heard that leaving the engine with no header or exhaust is bad for the valve , is this true?. Also if so , could I make a header out of ordinary steel pipe or is there something in the headers on websites or is is just a bit of steel pipe. If it is just as simple as making one does anybody have any links to show my exactly how .
The engine is a 6.5hp Tecumseh OH..... something.

Thanks for any help

 

[firemanjim]

Your best bet is to sell that tec engine as fast as possible to some schmoe.,(got any buddies ?) for like $50-60.. Or more if ya can. Then buy a 212.... Tec engines in my honest opinion, SUCK.... LOL You will always be mesdig with the crab, unless you get aftermarket. ... Valves are know to break at the stem, and or drop due to weak or broken keepers.
I take them off anything I buy, and start off with a better engine brand..
With that being said, if you're head has threads where the exhaust goes, go get a piece of black steel pipe from homedepot or Lowes. Probably get a 1' joint. Screw it in and lock it. You might want to shorten it, but its up to you and the engine....
Running NO exhaust pipe of any kind (i.e just taking off muffler ) is a NO NO ..... Yes, you will schmuck stuff up real quick like that....

 

[james123]

Thanks very much for the help , I'll take of the stock exhaust and have a look at what type of fitting it is.

Not trying to start an argument but the Tecumseh power sport I have on mine is 15 years old , only had trouble with the carb once , and I can swear on anything that after the winter that engine started first pull with gas pedal fully down , (primed obviously) . It then died after 3 seconds cause I let of the pedal to soon but even so I'll defend that little soilder. I do agree for the price 212 are the best though , have two on my other go kart

 

[firemanjim]

Thanks very much for the help , I'll take of the stock exhaust and have a look at what type of fitting it is.

Not trying to start an argument but the Tecumseh power sport I have on mine is 15 years old , only had trouble with the carb once , and I can swear on anything that after the winter that engine started first pull with gas pedal fully down , (primed obviously) . It then died after 3 seconds cause I let of the pedal to soon but even so I'll defend that little soilder. I do agree for the price 212 are the best though , have two on my other go kart

Its just my personal preference. .
If there isn't threads for a pipe, can you weld ? ( don't have to ) If no threads, cut off mating flange of oe exhaust and go to muffler shop and have them weld on a piece of tube, not pipe. About 1" tube diameter. You can make a stepped exhaust, if you weld. Start with 1" tube about a foot long,then step to 1.125" and again to 1.25" ... Those can be around 3"-4" long. Bend it to suit your needs or taste... Look up "candy cane header "

 

[james123]

I can , not brilliantly but enough. What's the difference between pipe and tube

 

[firemanjim]

I can , not brilliantly but enough. What's the difference between pipe and tube

A lot.... Typically, exhaust is made from thin wall tube , .045-.06" ..... Pipe, like water pipe with thread on it, is .09" +..... Retains too much heat for too long. Just not what ya use for exhaust.
(There is a much more technical explanation but no need )

 

[bob58o]

http://www.bmikarts.com/Header-Pipe-for-Tecumseh-50--65-OHV-Engine_p_883.html
https://www.ebay.com/i/272847734681?rt=nc

I used the second one on an OHV Tecumseh 5.0 powersport.
Never tired the first one.

 

[Denny]

I always thought the stage one modification for a Tecumsee was to take it off of what it was bolted to and throw it away.


Denny

 

[TT540]

I was about to resurrect the same motor. I will stop that and just scavenge a few parts from it before dumping it.

 

[ezcome-ezgo]

$30 seems a little high

 

[Skape]

I have a 6.5 Tecumseh engine and the carburetor is leaking oil and it’s also smoking bad. What is wrong with this and is it worth fixing? This is the first time in years it is giving me any issues. What should I do?

 

[Nosandwich]

IWhat should I do?

Start your own thread.

 

[BeaterofAincrad]

Thanks very much for the help , I'll take of the stock exhaust and have a look at what type of fitting it is.

Not trying to start an argument but the Tecumseh power sport I have on mine is 15 years old , only had trouble with the carb once , and I can swear on anything that after the winter that engine started first pull with gas pedal fully down , (primed obviously) . It then died after 3 seconds cause I let of the pedal to soon but even so I'll defend that little soilder. I do agree for the price 212 are the best though , have two on my other go kart

I just made one for the same engine out of a piece of an exhaust off a ride on mower and a piece of 1/8” sheet metal. I haven’t tried it on yet cuz I need some 1” standoff’s shaped to fit due to the pipe being a little large.

 

[bob58o]

I just made one for the same engine out of a piece of an exhaust off a ride on mower and a piece of 1/8” sheet metal. I haven’t tried it on yet cuz I need some 1” standoff’s shaped to fit due to the pipe being a little large.

I don't remember do any welding for you. LOL

 

[Xtreme Yard Karts]

Robertson makes several different headers for OHV Tecumsehs as well as air filter adapters. Their headers for great and work well. I've used them for many years.

https://www.robertsonstorquetubes.com/tecumseh-ohv