question to everyone!

[Drunkn Munky]

Don't feel too bad X. I have an electrical problem with my track bike right now that is really pissing me off. It is kind of the same as yours. I get the bike running and take it around the block. About a mile into it the bike loses power and quits. I notice the temp gauge is intermittently pegging to the right. FFS. I have to push the bike back home and it won’t start again. I change out the rear plugs and it fires…but only on the rear. Haven’t gotten around to changing the front out yet. Next step is to change the front plugs. While I am at it I am going to go through the wiring harness again and make sure all the earths are in good condition.

The dumbest thing I have ever done with my bike is break the motor to put some HRC pistons in the bike. Turns out the wrist pin is closer to the piston face so the new pistons without longer rods lowered my compression ratio. The best part is the pistons were slightly bigger than the bores and I trusted a machine shop that has never worked with motorcycle engines to enlarge the bores. They royally phuked it up and ended up boring the cylinders to over twice the maximum tolerance. I didn’t double check and assembled the motor. Oil was blowing by the rings so badly that the bike looked like a 2 stroke. When I broke the engine down again I could wobble the pistons in their bores! I had to find another motor. When I reassembled for the second time I used too much sealant near the crank and clogged the oil galleys. This motor gave up on me while at the track. Spun a big end rod bearing. Nice. So. In the end I took apart a perfectly running engine and jacked it up so bad I had to replace it….twice.

Dont spose you still have the pistons?

[mo haggs]

Don't feel too bad X. I have an electrical problem with my track bike right now that is really pissing me off. It is kind of the same as yours. I get the bike running and take it around the block. About a mile into it the bike loses power and quits. I notice the temp gauge is intermittently pegging to the right. FFS. I have to push the bike back home and it won’t start again. I change out the rear plugs and it fires…but only on the rear. Haven’t gotten around to changing the front out yet. Next step is to change the front plugs. While I am at it I am going to go through the wiring harness again and make sure all the earths are in good condition.

The dumbest thing I have ever done with my bike is break the motor to put some HRC pistons in the bike. Turns out the wrist pin is closer to the piston face so the new pistons without longer rods lowered my compression ratio. The best part is the pistons were slightly bigger than the bores and I trusted a machine shop that has never worked with motorcycle engines to enlarge the bores. They royally phuked it up and ended up boring the cylinders to over twice the maximum tolerance. I didn’t double check and assembled the motor. Oil was blowing by the rings so badly that the bike looked like a 2 stroke. When I broke the engine down again I could wobble the pistons in their bores! I had to find another motor. When I reassembled for the second time I used too much sealant near the crank and clogged the oil galleys. This motor gave up on me while at the track. Spun a big end rod bearing. Nice. So. In the end I took apart a perfectly running engine and jacked it up so bad I had to replace it….twice.

Dont spose you still have the pistons?

lol tiger tony on the prowl

[CMSMJ1]

I have one of the pistons at my house... graciously donated by my good mate Steve when at his house (ages ago it seems!!)

[Drunkn Munky]

lol well you gota try, seeing as steve was giving them away im guessing there fooked from the engine letting go

[Yakama]

Tony, if you could get enough people you could get some made to the same spec? Might be costly though

[Drunkn Munky]

Yeah i dont really wanna be shelling out a fortune for some, i have a set as you know but a spare set just incase would be nice.

[vfrman]

They weren't totally buggered, but believe it or not they weren't all the same size. Very odd so I pretty much gave them away. Not sure if I have any left or not. I don't think I do. The stuff G-Force is using is way sexier than the HRC pistons IMO.

[royster81]

I have one of the pistons at my house... graciously donated by my good mate Steve when at his house (ages ago it seems!!)

as do i but i didn't go to steves house.

[hawk2993]

floating as in not secure.. moving, rattling... not 0 gravity.

I had a feeling when I read about a different tail on the bike that this may be the case. I'm still determined to prove my theory about the kill switch... lol The fusebox is in the tail. If that's been rattling about you may well have disturbed and/or damaged gawd knows what. There's a 10A blade fuse in that box, and the feed goes back to the battery. On the other side is the kill switch, followed by the two ignition coils. I still reckon something is damaged somewhere between the coils and the switch or the fuse, however if it was before the switch, that would also knock out the starter as the start switch is fed by the same circuit. Even if it's not that, having all the wiring floating about will be a very good reason why your brake light switch worked, didn't work, then worked again. It will explain why your CDI worked, didn't work, then a different one worked, then maybe didn't. Best guess is you've knackered the back half of the wiring loom, which is bad news as that's the half the fusebox lives in. You're probably going to have to check every last inch of every wire for potential damage!

Kill switch is the problem. I had the same problem with my bike cutting out at high temp. and it was something to do with the kill switch.

[xivlia]

could you expand on it a bit more? what was it with the kill switch? how did you fix it.