Ongoing problems with GEBE Robin/Subaru 4 stroke

yep thats the one.
i had the valves done to a 3 angle port job and also before we did that we found out that from the factory they tightened the valve lash to much and the exhaust port is smaller then a weed eater 29cc?
the splash type lubrication is what killed it we were probly pulling it to about 11thousand rpms when it let go we found the cam in pieces and the block was warped and oil was every were and that automatic timing adjustment is a joke

what it needed for what we did was a windage tray in there so the crank wouldnt get too heavy from the oil the cam gears are plastic so timing after a few months slips and tha valves need to be re lashed and put a 3 angle grind on the valves also the intake and exhaust are tooooooo small

but stock they should last but i wouldnt do anything to mod them cause they will blow
 
but stock they should last but i wouldnt do anything to mod them cause they will blow

I would not think of doing any mods on mine. 20 mph is the speed limit in AZ (if you go faster you risk several thousand dollars in fines and possible jail time). The eho35 hits 20 without much throttle.
 
well its not just for going faster its for hill climbing power if you cant get 4.5 hp out of a 35cc engine then its a failed engine thats what our moddo is at TGR me an my friends are surprized at how bad all these engines on these kits are cause if you cant get past 10thousand rpm with a 48cc then its got to be bad.

but we could hit 30 with it but we never once used the pedals with a 150+ rider and besides the throttle is for speed control you shouldnt just go all out hit 20 and be done bieng able to go faster can save your life!
 
no hills in Phx. I take back roads to and from work. The eho35 does fine for me, it will cruise above 20 (probably 25 to 30?) but I keep it at about 20. btw are you saying that the info on the eho35 (from their website) is inaccurate?
 
no inacurate and a lie
just a way for them to sell the enggine better its a fixed coil mount just the same as any engine from china.
and all that bs about thier cranks bieng special is nothing special the engine that they make for bikes from china have the same stuff for the crank

the only great thing is the iron sleeved cylinder but it has its down sides too such as the iron holds in the heat and also after a long long ride it can cause pinging(detonation)
 
gorilla your not correct in your insight , i run my robin at a constant 25- 28 all day long with no noticeable blurbs, hiccups ect! no pinging at all! works for me!
 
Ah, to be 18 again.

But come to think of it, when I was 18 I was riding a 900cc rocket.:LOL:
 
When you mod an engine to jack the power up, There IS a trade-off - you lose reliability. I ride my bike to work. I want it to stay running with no tinkering needed. Those R/S & Honda engines are designed for reliability - NOT for performance boosting. And, they're not over-designed. If you keep 'em stock, they're VERY reliable.
 
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