Roni92
Well-Known Member
- Messages
- 63
Hi,
this is 45cc dual ring POS rovan engine, it was difficult to start from the beggining, but now its even worse, usually need to lean out low half to one turn to start then get back to normal setting.
But thats one of smallest problems with it, recently it got no power, but not like bogging or anything it will reach max speed, but pretty slowly, engine have no torque at all, and idle behaves strangely: after driving the idle is unusually high, then after idling like this for about 10-20 seconds is getting lower to normal rpms.
I know its not mixture needles issue because was tinkering with them a lot and it doesn't help at all. Spark plug looks almost perfect (light brown with small amount of deposits).
I also don't have seal on the header-exhaust connection, because they are all melting almost immediately... I know not sealed exhaust might be part of the problem, but the thing is last time I was in gravel pit with this setup she run fine, at least as fine as you can expect from that pos engine, but at least it worked normally and accelerated decently.
I head idle issues can be cause by not tight intake, so I dissasembled it today but everything looked normal, I mean seal next to two screws was broken but only around screws, not where the actual air comes through.
I oiled them today with filter oil to help with sealing, and made sure pressure impulse opening thingy is clear and seal is not blocking it but it was fine anyway.
Also made sure that fuel lines are connected to proper spots in carb - the black one with filter goes into bottom and clear(yellow) is connected to upper thing, so ithinkg its proper.
Also this engine generates enormous amounts of heat, and head regularly run at 180*C but i heard this is how it is with those pos engines.
By some miracle it still hasnt seized in about 8 tanks of constant issues problem solving and overheating
Every time i go out with it im wondering if it will finally kill itself (and I think I subconsciously want that ).... hate it with passion.
After about 20-30mins of driving it loses almost all power and dies without throttle and will not start again the same day. At that point everything under body is so fuc**ng hot you can almost burn yourself even on chassis...., even plastics have 100*c.......(its why i don't want to put lipo in it, it will f***** explode from heat) Its like this every time. I think this engine have like 5% or less efficiency, all burned fuel is wasted into heat .
Its really strange because my bajas 29cc is the exact opposite, works perfectly with no issues from the begiining, vehy good power for the price, and always starts effortless with one pull, just loud as mofo.
this is 45cc dual ring POS rovan engine, it was difficult to start from the beggining, but now its even worse, usually need to lean out low half to one turn to start then get back to normal setting.
But thats one of smallest problems with it, recently it got no power, but not like bogging or anything it will reach max speed, but pretty slowly, engine have no torque at all, and idle behaves strangely: after driving the idle is unusually high, then after idling like this for about 10-20 seconds is getting lower to normal rpms.
I know its not mixture needles issue because was tinkering with them a lot and it doesn't help at all. Spark plug looks almost perfect (light brown with small amount of deposits).
I also don't have seal on the header-exhaust connection, because they are all melting almost immediately... I know not sealed exhaust might be part of the problem, but the thing is last time I was in gravel pit with this setup she run fine, at least as fine as you can expect from that pos engine, but at least it worked normally and accelerated decently.
I head idle issues can be cause by not tight intake, so I dissasembled it today but everything looked normal, I mean seal next to two screws was broken but only around screws, not where the actual air comes through.
I oiled them today with filter oil to help with sealing, and made sure pressure impulse opening thingy is clear and seal is not blocking it but it was fine anyway.
Also made sure that fuel lines are connected to proper spots in carb - the black one with filter goes into bottom and clear(yellow) is connected to upper thing, so ithinkg its proper.
Also this engine generates enormous amounts of heat, and head regularly run at 180*C but i heard this is how it is with those pos engines.
By some miracle it still hasnt seized in about 8 tanks of constant issues problem solving and overheating
Every time i go out with it im wondering if it will finally kill itself (and I think I subconsciously want that ).... hate it with passion.
After about 20-30mins of driving it loses almost all power and dies without throttle and will not start again the same day. At that point everything under body is so fuc**ng hot you can almost burn yourself even on chassis...., even plastics have 100*c.......(its why i don't want to put lipo in it, it will f***** explode from heat) Its like this every time. I think this engine have like 5% or less efficiency, all burned fuel is wasted into heat .
Its really strange because my bajas 29cc is the exact opposite, works perfectly with no issues from the begiining, vehy good power for the price, and always starts effortless with one pull, just loud as mofo.
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