Stud bolt

[lowcountry1]

After finishing a carb rebuild I was reinstalling carbs when one of the stud bolts from the intake manifold broke. How is this repaired? Thanks.

[Amapilot]

If you can get to it fairly easily you can either use a bolt extractor or drill out the bolt. Then use a stainless metric helicoil. The hardest part will be getting the old bolt out. A helicoil kit is fairly inexpensive and not hard to use. Most good auto parts places have the kit. Use anti-seize compound for the new bolt in case you have to remove it again in the future. I used to have a 1985 Yam 115 and got quite proficient using helicoils!

[lowcountry1]

Got it

Found out this is a double threaded bolt ($2-$4). Removed carb and removed the bolt. Easy to do but removing the bolt took some work as the bolt is smooth in the middle between threads. Used needlenose vise grips.

[lightfoot]

Every once in a while... you get lucky! Glad you got the bolt out.

Lightfoot

[99yam40]

It also would be good to not torque any bolt higher than the manual calls far