Missing head bolt

[Baytownshee]

So this july 4th weekend we took a trip to little sahara in oklahoma and the last day i noticed that i was missing a head bolt on the top left. I do not know how long the shee was rode before i noticed it......i know i only rode it back to camp and parked it and rode the backup bike afterwards. How difficult could it be to replace the stud (like just place a new one in there and torque it down or loosen all of them and retorque) and where could i find the torque pattern on the internet for when i fix this problem. Thank you for any helpfull information.

[bansheesandrider]

So this july 4th weekend we took a trip to little sahara in oklahoma and the last day i noticed that i was missing a head bolt on the top left. I do not know how long the shee was rode before i noticed it......i know i only rode it back to camp and parked it and rode the backup bike afterwards. How difficult could it be to replace the stud (like just place a new one in there and torque it down or loosen all of them and retorque) and where could i find the torque pattern on the internet for when i fix this problem. Thank you for any helpfull information.

If the old stud is not broke off, you should be able to screrw in a new stud with red loctite on it by hand and then make sure it is snug. Then install a nut and torque it to 20 foot pounds and retorque all your other nuts. The torque pattern is cast into the stock head or can be found in the shop manual, you do have one of those right? Check for coolant leaks and you will be good to go. IF the old stud is broke off, then you will have to remove the head and see if it is sticking upto put a ViceGrip on. If it is not sticking up you will probably have to remove the cylinder and drill and use an easyout or take it to a machine shop to be repaired.

[Baytownshee]

If the old stud is not broke off, you should be able to screrw in a new stud with red loctite on it by hand and then make sure it is snug. Then install a nut and torque it to 20 foot pounds and retorque all your other nuts. The torque pattern is cast into the stock head or can be found in the shop manual, you do have one of those right? Check for coolant leaks and you will be good to go. IF the old stud is broke off, then you will have to remove the head and see if it is sticking upto put a ViceGrip on. If it is not sticking up you will probably have to remove the cylinder and drill and use an easyout or take it to a machine shop to be repaired.

 

 

 

Thank you for your reply. It has the stock head on there so the pattern should be on there I need to buy me a shop manual for this bike. The bike puts out 52hp on the dyno at little sahara with the mods i have right now and i was planning on taking the jugs to rage atv in splendora TX to get them dune ported and polished so this seems like an ideal time to do so and also replace the head with a cool head.

[prssantana]

You also need to make sure the head isn't warped. It most likely will be since it was ridden this way. Good time to get a cool head though. When you torque the head it goes in steps. I'm not sure what they are but something like 7 13 and then 20. If you do it straight to 20 you will have problems.

[Baytownshee]

Well i was looking at my funds and decided since im going to have it apart might as well port and polish an get the cool head. I want to run pump gas on it 91 or 93 octane and im thinking about getting 20cc domes would that be best or should i go with a different size. Im taking the bike to the shop this afternoon. As far as the cool head goes are all the brands pretty equal on reliability and what not? Thank you for the info.

[AKheathen]

it depends on your bore size, but near stock bore, and dune port, you should be fine with 20's down to 90oct. timing will effect this, too.