Have any of you purchased parts from Cruzin Image and wished you hadn'd? I've heard of folks using their pistons without complaint.
How about Sumo Rubber?
How about Sumo Rubber?
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Cruzin Image and/or Sumo Rubber experience?
- Thread starter jetmechmarty
- Start date
I put over 3000 miles on a set of Cruzinimage pistons last summer and have no complaints. They got me to the VYR and back.
I bought their 706cc big bore 78mm piston kit recently and so far so good after over 100 miles. The price is just right for the quality of the pistons, and a pretty close match to the stock pistons. I would no doubt in my mind buy from cruzinimage again.
Marty you might want to look into Economy Cycle Granbury, TX For rubber parts most of his parts are sold as fitting RD series but I think a fair number would be XS650 appropriate.
Haven't bought from CI, but I've looked at their site a few times and noticed some errors. Example: carb boots for BS34 which should be listed for 1980-83 are listed for 1978-83. The Yamaha number is listed for each part, so it's easy enough for the buyer who does his homework to keep things straight.
Many sellers seem to make that same mistake, listing BS34 manifolds as correct for models back to '78. I think the reason may be because Yamaha's parts diagrams are wrong. They show BS34 carbs on the '78 and '79 Specials which we all know isn't true.
Tell 'Im those factory tolerances have worked well for the better part of half a century.
I've rebuilt 2 top ends with Cruzinimage piston. Used factory specs for bore sizing on both. No problems. Break the engine in correctly.
Edit . Had the cylinders sized for 0.002 in clearance.
Edit . Had the cylinders sized for 0.002 in clearance.
I bought some fuel tank lid seals from SUMO and some headlight bucket-hole grommets and while the mail took a little while, they have now arrived and first impressions are of good parts made of the correct materials so 
Pete
Pete
Eugene, just to support what Jim wrote, the factory clearance spec is for OE pistons, which are cast. No insult to your rebore guy intended (it's happened to me often enough!), but I think your rebore guy was experiencing a brain bubble and got things turned around: forged pistons require wider clearance than cast.
Same here on Cruzin. Rebuilt two motors with their pistons one being two over, the other I can't remember but it may have been four over. About 3,500 miles on one, and 800 miles on the other. Both run strong. No complaints.
If you go with the tighter spec let us know how it works out.
Just spoke to boring shop and weve agreed the Yamaha standard spec is probably best, especially with all the feedback from people here.
He said he would've gone slightly overspec anyway so tighter spec plus a whisker is about standard.
He said he would've gone slightly overspec anyway so tighter spec plus a whisker is about standard
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member3480
RICH
Have been using Cruzinimage for over 20 years and must have 40 bikes out there with there pistons. Just ordered three stock bore piston kits and a 836 kit for Honda.
