Quick Question

[supamitch]

I have a Briggs and Stratton 8hp i/c engine. How difficult would this be to overhaul or rebuild? I have found a kit on mfgsupply.com that contains just about everything needed.

 

[trails]

if the kit has everything you need, then you will need the tools to rebuild your briggs. if you dont know much about small engines, it may be tuf...but this is the help resource, so i wouldnt say it would be really hard,but not that easy

 

[Kenny_McCormic]

Not really worth it.

 

[trails]

i agree with kenny. if your engine runs, why rebuild it. unless you were like me when i first started dirtbiking, i would replace working parts just to see how it was done, and have the same engine with a thinner wallet when i was finished. get a header and a TC for it...it'll make you happier then a rebuild

 

[Kenny_McCormic]

Those 8hp motors will run till hell freezes over.

 

[trails]

i know.... just like a honda. i wish i had a comet 40 series in the back yard. instead of buyin a new 7 when i get the cash, i would get an 8. but noooo. i would then have to buy a 40 series and i aint got the $$$

 

[supamitch]

The engine doesn't run. I probably should have mentioned that in the first post. I just tried to start it an hour ago but it just won't catch. It has electric start with no battery so I just used the pull-rope. The kid I bought it from says it was pushing air out near the head the last time he had it running. Any ideas?

 

[Kenny_McCormic]

Might have blown a head gasket, does it have spark? Check compression, flywheel should bounce off comp stroke, if not pull the head and have a look.

 

[jr dragster T]

Then I guess my '82 dirtbike had hell freeze over.....Dropped a valve.

 

[supamitch]

How do I check the spark? Or compression?

 

[jr dragster T]

Spark pug spark plug in boot and touch the edge of the plug aggainst the head/block and crank her over. Or just hold the plug in your hand and crank it. You'l know fast!

 

[supamitch]

I took the spark plug out and attached it to the boot. I laid it on top of the engine so that the electrode was touching the surface of the engine. I pulled the start rope but I got no spark. Is it the wire, the plug, or something else entirely?

 

[Kenny_McCormic]

Points might be dirty. How old is it? Give me a pic of it under the blower cover.

 

[supamitch]

It's about 8 years old. Forgive me for asking but what's a blower cover?

 

[Kenny_McCormic]

The big chunk of sheet metal directing cooling air form the squirrel cage fan that is built into the flywheel. This is not the 8hp im thinking of if its only 8 yrs old, i have to see this thing.

 

[jarcynvicnchris93]

40 series

i know.... just like a honda. i wish i had a comet 40 series in the back yard. instead of buyin a new 7 when i get the cash, i would get an 8. but noooo. i would then have to buy a 40 series and i aint got the $$$

Check out BMIs store on ebay. if you really pay attention you can get a good deal on a 40 Series Driver and Driven.

 

[brendonv]

ok my 2.5hp briggs is only 7yrs old and it has the point system (unless the previous owner got a new cover for it!). If this is the case u take the flywheel off and behind there is a little metal circle casing. Open it up and u will find a point system, clean up the points then put the cover back on and put a bit of black silicone where the wires go in. It also could be the case that water got into it and stuffed up the condenser ( battery looking thing ) and if thats the case u gotta buy a new one. Its not very expensive, maybe 15 bucks.

If your stuck what to do with the points n stuff watch this video i made: http://au.youtube.com/watch?v=oJB_h-BUJ_k

Hope that helps.

 

[Russ2251]

ok my 2.5hp briggs is only 7yrs old

Much older than 7. Blower cover must have been changed out.
Check date code on back side of flywheel.

 

[supamitch]

I'll get some pics up soon as I can.