Originally Posted by
grizz1
Sorry to hear that mate. I don't know anyone that's had that much trouble with their Go-Tech motor. A lot of guys here in NZ run them and love them.
I had a problem blowing plugs like you describe for a little while, but turned out to be my fault as I didn't have the tune correct. I was too rich on the bottom and too lean on the top. Motor ran OK but plugs died on a regular basis. Since I have remedied the tune I haven't blown a plug. I guess you have tried flushing the HSN and tuning with the LSN which seems to be the way to run these motors ? They do tune a little different to other makes it would appear. Mabye you just got a bad apple with an inherint air leak or something. Good luck, and good racing
Thanks mate, but I tried all the tuning advice from here, including richening up the top end and leaning the bottom end, but to no avail. If I set the HSN flush and then I leaned in the LSN until it was idling well (about 2 1/2 turns in), then the engine won't run at all. It just sputters when I rry to drive off, I need to lean the HSN in quite a bit to get it to run anywhere near decent. I also kept on getting flameouts all the time???? Engine would die for no reason at all.
I have sealed the whole engine too on the carb and back plate and used green slime on the needles to ensure no air leaks there. Oh well, you win some, you lose some.