Mukini
are there any other cdi boxes that will work in place of 4sh-00 on a 1999 yamaha 350 big bear
Yamalube 20w50 is a good choice & it holds 3L for the Yamaha big bear 350.
Compression ratio on a 1974 Chevy 350 in a Nova was 8.5:1.
The ratio is 9.5.1 in the 350 vortec. Doing a compression test you should not have any below 100 psi and all should be similar to each other.
Usually at least 140-150 lbs.
8.5 to 1 compression is factory stock.
The compression ratio of a 350 Chevy engine usually ranges from 8.0 and 9.0 to 1. This provides a good balance of fuel economy and power.
A 260 what, on a 350 what, might help us answer that.
For the 1999 Yamaha Big Bear 350, the torque specifications vary by component. Generally, the engine case bolts are typically torqued to around 7.2 ft-lb (10 Nm), while the cylinder head bolts should be torqued to 15-20 ft-lb (20-27 Nm) in a specific sequence. Always refer to a service manual for the exact specifications and procedures to ensure proper assembly.
What is the timing marks for a 1998 350 Big Bear 4x4
Not a good idea. 350 heads will lower compression to 7 to 1 or less.