dave#22
New Member
Hi, My name is Dave, living in England and I recently bought a '99 Cruzzer WC1. It has less than 200miles from new, so I assumed it would be OK.....First, the primary belt was slipping, so I did a mod to rectify the problem, then I noticed oil on one head to crankcase stud, so I decided to retorque the head bolts only to find that there was no tension on that stud.
Engine out, head & cylinder removed and found the thread stripped in the crankcase, which must have happened on assembly, so I spent a few hours making an insert m10xm7 with dowel, fitted it, then found this site and read that the m7 studs need upgrading to m8, so today I removed the insert and fitted two m12xm8 inserts with m8x140 12.9 cap heads and will replace the m6 head bolts with m6 12.9.....a porting job, machine 1mm (0.040") from the head should give a power increase and improve reliability.
Fingers crossed, Dave.
Engine out, head & cylinder removed and found the thread stripped in the crankcase, which must have happened on assembly, so I spent a few hours making an insert m10xm7 with dowel, fitted it, then found this site and read that the m7 studs need upgrading to m8, so today I removed the insert and fitted two m12xm8 inserts with m8x140 12.9 cap heads and will replace the m6 head bolts with m6 12.9.....a porting job, machine 1mm (0.040") from the head should give a power increase and improve reliability.
Fingers crossed, Dave.