Honda GXH50 50cc modified

Engine mods

-go-kart carb (for 144cc)
-Air filter With intake adapter
-removed governer
-Straight pipe ( just in this photo, to loud removed it) i can include it if you like
-Tighted Springs for more compression by using 2 washers
-you can not see it in this picture; but i will include the cnc machined adapter that will allow you to mount to a cluch.
-10w 30 synthetic only run through this motor .. THIS MOTOR IS MINTTTTTT!
-engine has had always early oil changes excellent compression
********************asking price is $350 (including straight pipe; all original other****************
********************parts including governer original throttle mounting hardware etc)*************

http://i32.tinypic.com/2hn6qgk.jpg

Videos on my motorbike here:

4-stroke video .. build
http://www.youtube.com/watch?v=iDgc4ye0_Dc

4-Stoke video - outside view (straight pipe installed )
http://www.youtube.com/watch?v=iDgc4ye0 ... re=related

4-Stroke video- onboard cam
http://www.youtube.com/watch?v=ARxSCzglWek

my email address is trdfreak03@hotmail.com

thanks
steve
 
Last edited:
G

gone_fishin

Guest
steveo...please post a "reply" here with the missing info from above, i'll edit it into place. keep in mind we don't allow image tags, but you may post links to outside pics.
 
J

JemmaUK

Guest
can you explain more in detail

Tighted Springs for more compression by using 2 washers size ect.

Tightened springs dont increase compression - what they can do is reduce valve bounce/float at top end which means the engine will rev higher without loosing power - the tradeoff is possibly higher mechanical wear.

An example is the engine used in the Humber Sceptre and the Hillman Minx. Identical engines apart from the head. The Sceptre used a high output alum head with stronger valve springs so could rev to almost 6k rpm where the Minx motor with a standard steel head would only manage 5k before things started going floaty or in interferance type designs going bashy into important parts of the engine.

In smaller engines the easiest way of raising compression is to skim the cylinder (much like skimming a cylinder head on a car motor). This will give you a little more power but care has to be taken or piston will say hello to sparkplug with nasty side effects...

Jemma xx
 

steveo

New Member
Joined
Mar 12, 2008
Messages
9
Tightened springs dont increase compression - what they can do is reduce valve bounce/float at top end which means the engine will rev higher without loosing power - the tradeoff is possibly higher mechanical wear.

An example is the engine used in the Humber Sceptre and the Hillman Minx. Identical engines apart from the head. The Sceptre used a high output alum head with stronger valve springs so could rev to almost 6k rpm where the Minx motor with a standard steel head would only manage 5k before things started going floaty or in interferance type designs going bashy into important parts of the engine.

In smaller engines the easiest way of raising compression is to skim the cylinder (much like skimming a cylinder head on a car motor). This will give you a little more power but care has to be taken or piston will say hello to sparkplug with nasty side effects...

Jemma xx

Hey

yes i'd say your correct, I guess i don't know how to properly explain, but the point which you made where the troque is carried to a higher rpm is exactly it!!

-steve
 
V

vyzhion

Guest
Oooh I _LIKE_ the carb. What brand/size is that? I have been looking for a performance carb for a honda clone engine just like this. Plz let us know. Thanks! :)
 

steveo

New Member
Joined
Mar 12, 2008
Messages
9
Hey

you would need to check a local go-kart shop; its off a 144cc honda; the jet is a little bigger to feed the motor more fuel; the stock gxh 50 is ok; but this one give a tad more :)..

-steveo
 
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