high country
New member
Ok so I bought a basket case 00' 700 mm and got er rollin' it is clean with all kinds of goodies but my first question is about the tach, my 97' mm 700 has a different tach as the 00' has the gas guage in the tach, is that normal? also the tach is not working,the gas guage does, it has been installed in a lexan hood and appears to be done cleanly but if anyone can feed me a schematic of the tach circut i can chase it out, I looked for the rubbed/burnt/misconnected wires and that is not it, i could use the resistance parameters for the tach also. does anyone have a spare post for a roller secondary(mpi) one of the three is broken, the good news is I scored extros, l/w hood, viper seat, mpi secondary and transfer, hyperfax,peak head, pipes (coated none the less), ported, fabcraft bars and riser, egt's and gobbs of other little goodies all for a song and a dance...and a top end rebuild. any help would be greatly appereciated.
jt specialties
New member
If you have the owners manual. It is in the back. If not go to Yamaha-Motor.com and proceed to snowmobiles. Then click parts. Then click view manuals. It will open in adobe. It shows what you need. I just looked. If you want to sell the head or some of the other parts, let me know.
high country
New member
thanks for the link. the sled is running now so I will not be parting her, in fact it runs flippin' hard. I could really use a troublshooting hand for the tach, am I looking for resistance or voltage, and what triggers the tach, the diagram on yamaha's site of course does not show the tach wire specifically.