Stock crank true and weld

[jmillertime1148]

At what point does a guy need to think about getting the stock crank welded? Current setup: DMC 916 exhaust, cool head 22cc domes, k&n, stock air box no lid, stock carbs, chariot cages with boyesen reeds, bored .010. Just ordered new timing plate and 19cc domes. Am I pushing it?

[Finch]

i would have it done. i had 130 psi and timing +4 and mine started separating on low hour motor

[SandmanPNW]

At what point does a guy need to think about getting the stock crank welded? Current setup: DMC 916 exhaust, cool head 22cc domes, k&n, stock air box no lid, stock carbs, chariot cages with boyesen reeds, bored .010. Just ordered new timing plate and 19cc domes. Am I pushing it?

 

When you port the motor. Not necessary on s low hp motor.

[Finch]

When you port the motor. Not necessary on s low hp motor.

 

bumped compression alone can do it hell even a bone stock motor crank can start to let go. i was always like eh ill wait glad i didnt wait to long when i had over a 16th of side to side play

[jmillertime1148]

Thanks for the input guys. What would you say would be a safe estimation of the hp? I don't know of any place with a dyno near by. I know it's not a monster bike but I've always wondered what it might be putting out.

[bansheesandrider]

My crank came apart on a bone stock except for pipes bike. It wa a 89 that I bought brand new and had it less than a year. It is now the first thing I do to EVERY Banshee that I buy. On the 89 it cost over 700 bucks just to repair the damage, I should have spent the 100 bucks on a true and weld and then I could have spent 600 on go fast stuff instead. Live and learn.